NetBSD Problem Report #36628

From martin@duskware.de  Wed Jul 11 07:48:20 2007
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Message-Id: <20070711005136.41ECF63B874@narn.NetBSD.org>
Date: Wed, 11 Jul 2007 00:51:36 +0000 (UTC)
From: ChristophFranzen@gmx.net
Reply-To: ChristophFranzen@gmx.net
To: netbsd-bugs-owner@NetBSD.org
Subject: cdhdtape image panics with memory management trap on Jensen
X-Send-Pr-Version: www-1.0

>Number:         36628
>Category:       port-alpha
>Synopsis:       cdhdtape image panics with memory management trap on Jensen
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-alpha-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jul 11 07:50:01 +0000 2007
>Last-Modified:  Sat Sep 19 16:55:01 +0000 2020
>Originator:     Christoph Franzen
>Release:        4.0 Beta 2
>Organization:
>Environment:
Not available.
>Description:
Machine: DECpc 150 AXP / DEC200/300 ("Jensen")

The current Netbsd install images panic with trap 0x2 (memory management) immediately. At the following prompt you can just re-enter the SRM console.

In fact there is NO cdhdtape image at all which can boot on my Jensen machine, all releases panic at different stages for various reasons.
Examples:
Version 2.0: trap 0x4 (memory alignment)
Versions 1.6x: LPT Port issue (has apparently been fixed, but did not go into the official releases?)
Versions 1.5x: stops and hangs forever after recognizing the floppy drive

>How-To-Repeat:
Boot the cdhdtape image on Jensen.
>Fix:

>Release-Note:

>Audit-Trail:
From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: gnats-bugs@NetBSD.org
Cc: gnats-admin@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Wed, 11 Jul 2007 21:22:04 +0900

 > Examples:
  :

 Please post whole dmesg, panic messages and "trace" output on ddb(4)
 with 3.1 or 4.0_BETA2.
 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: gnats-bugs@NetBSD.org
Cc: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>,
	port-alpha-maintainer@netbsd.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Thu, 12 Jul 2007 02:26:07 +0200

 Hello,

 thank you for your quick answer.

 >  Please post whole dmesg, panic messages and "trace" output on ddb(4)
 >  with 3.1 or 4.0_BETA2. --- Izumi Tsutsui

 The output captured from the serial console follows below; as you can 
 see, there is no "trace" output, and dmesg doesn't provide any 
 additional information.

 ====================================================
 Alpha AXP System - ROM Version 1.7

 Copyright (c) 1993 Digital Equipment Corporation.

 Alpha AXP SRM Firmware Version - 32f
 System conducting power up tests
 ------------------------------------------------------------

 Devnam            Devstat
 --------          -------
      CPU          OK EV4 P3.0 6.6ns
      MEM          OK 32MB
      NVR          OK 
      SCC          OK 
       IT          OK 
      KBD          OK 
      LPT          OK 
      VGA          OK 
     SCSI          OK 
 ------------------------------------------------------------
 System power up OK.

   83 BOOT SYS

 INIT-S-CPU...
 AUDIT_BOOT_STARTS ... 
 AUDIT_CHECKSUM_GOOD
 AUDIT_LOAD_BEGINS
 AUDIT_LOAD_DONE


 NetBSD/alpha 4.0_BETA2 ustar Bootstrap, Revision 1.3
 (builds@wb27, Mon Jul  9 21:26:10 PDT 2007)

 VMS PAL rev: 0x100010530
 OSF PAL rev: 0x20123
 Switch to OSF PAL code succeeded.

 Boot flags: A
 9057040+177808=0x8cef20

 Entering netbsd at 0xfffffc00003012e0...
 Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 
 2005, 2006

     The NetBSD Foundation, Inc.  All rights reserved.

 Copyright (c) 1982, 1986, 1989, 1991, 1993

     The Regents of the University of California.  All rights 
 reserved.

 NetBSD 4.0_BETA2 (INSTALL) #0: Mon Jul  9 22:30:11 PDT 2007

 	builds@wb27:/home/builds/ab/netbsd-4/alpha/200707090002Z-
 obj/home/builds/ab/netbsd-4/src/sys/arch/alpha/compile/INSTALL

 DEC2000 model 300, 150MHz, s/n 
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 21120 KB
 mainbus0 (root)
 CPU 0: fatal kernel trap:

 CPU 0    trap entry = 0x2 (memory management fault)
 CPU 0    a0         = 0x20
 CPU 0    a1         = 0x1
 CPU 0    a2         = 0x0
 CPU 0    pc         = 0xfffffc00005bb410
 CPU 0    ra         = 0xfffffc00005bb3d4
 CPU 0    pv         = 0xfffffc00005f02f0
 CPU 0    curlwp    = 0xfffffc0000bc32b0
 CPU 0        pid = 0, comm = swapper

 panic: trap

 Stopped in pid 0.1 (swapper) at 0xfffffc00005d9ba0:     ret     
 zero,(ra)

 db> trace

 db> dmesg

 Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 
 2005, 2006

     The NetBSD Foundation, Inc.  All rights reserved.

 Copyright (c) 1982, 1986, 1989, 1991, 1993

     The Regents of the University of California.  All rights 
 reserved.

 NetBSD 4.0_BETA2 (INSTALL) #0: Mon Jul  9 22:30:11 PDT 2007

 	builds@wb27:/home/builds/ab/netbsd-4/alpha/200707090002Z-
 obj/home/builds/ab/netbsd-4/src/sys/arch/alpha/compile/INSTALL

 DEC2000 model 300, 150MHz, s/n
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 21120 KB
 mainbus0 (root)
 CPU 0: fatal kernel trap:

 CPU 0    trap entry = 0x2 (memory management fault)
 CPU 0    a0         = 0x20
 CPU 0    a1         = 0x1
 CPU 0    a2         = 0x0
 CPU 0    pc         = 0xfffffc00005bb410
 CPU 0    ra         = 0xfffffc00005bb3d4
 CPU 0    pv         = 0xfffffc00005f02f0
 CPU 0    curlwp    = 0xfffffc0000bc32b0
 CPU 0        pid = 0, comm = swapper

 panic: trap

 db>

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, port-alpha-maintainer@NetBSD.org,
	tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Fri, 13 Jul 2007 00:47:16 +0900

 ChristophFranzen@gmx.net wrote:

 > NetBSD 4.0_BETA2 (INSTALL) #0: Mon Jul  9 22:30:11 PDT 2007
 > 
 > 	builds@wb27:/home/builds/ab/netbsd-4/alpha/200707090002Z-
 > obj/home/builds/ab/netbsd-4/src/sys/arch/alpha/compile/INSTALL
 > 
 > DEC2000 model 300, 150MHz, s/n 
 > 8192 byte page size, 1 processor.
 > total memory = 32768 KB
 > (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 > avail memory = 21120 KB
 > mainbus0 (root)
 > CPU 0: fatal kernel trap:
 > 
 > CPU 0    trap entry = 0x2 (memory management fault)
 > CPU 0    a0         = 0x20
 > CPU 0    a1         = 0x1
 > CPU 0    a2         = 0x0
 > CPU 0    pc         = 0xfffffc00005bb410
 > CPU 0    ra         = 0xfffffc00005bb3d4
 > CPU 0    pv         = 0xfffffc00005f02f0

 Hmm, looks NULL pointer dereference in
 alpha/dec_2000_300.c:dec_2000_300_device_register().

 Could you try the following image or attached patch?

 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070712.gz


 Index: alpha/dec_2000_300.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/alpha/dec_2000_300.c,v
 retrieving revision 1.13
 diff -u -r1.13 dec_2000_300.c
 --- alpha/dec_2000_300.c	4 Mar 2007 15:18:10 -0000	1.13
 +++ alpha/dec_2000_300.c	12 Jul 2007 14:39:03 -0000
 @@ -229,7 +229,7 @@
  		isadev = dev;

  	if (scsiboot && (scsidev == NULL)) {
 -		if (parent != eisadev)
 +		if (eisadev == NULL || parent != eisadev)
  			return;
  		else {
  			struct eisa_attach_args *ea = aux;
 @@ -286,7 +286,7 @@
  		/*
  		 * XXX WHAT ABOUT ISA NETWORK CARDS?
  		 */
 -		if (parent != eisadev)
 +		if (eisadev == NULL || parent != eisadev)
  			return;
  		else {
  			struct eisa_attach_args *ea = aux;

 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org, port-alpha-maintainer@netbsd.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Thu, 12 Jul 2007 22:49:59 +0200

 > Hmm, looks NULL pointer dereference in
 > alpha/dec_2000_300.c:dec_2000_300_device_register().
 > 
 > Could you try the following image or attached patch?
 > 
 > http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070712.gz

 This one is better, but now looks to me a lot like the bug around 
 version 1.6 (lpt port issue). I found something in the archives; 
 Jason Thorpe apparently had fixed something like that in/before 1.6:
 http://mail-index.netbsd.org/port-alpha/2002/06/26/0003.html
 I wonder why it has come back, or is this a different issue?

 ==============================
 NetBSD/alpha 4.0_BETA2 ustar Bootstrap, Revision 1.3
 (tsutsui@mirage, Fri Jul 13 00:08:27 JST 2007)

 VMS PAL rev: 0x100010530
 OSF PAL rev: 0x20123
 Switch to OSF PAL code succeeded.

 Boot flags: A
 9057184+177808=0x8cefb0

 Entering netbsd at 0xfffffc00003012e0...
 Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 
 2005, 2006

     The NetBSD Foundation, Inc.  All rights reserved.

 Copyright (c) 1982, 1986, 1989, 1991, 1993

     The Regents of the University of California.  All rights 
 reserved.


 NetBSD 4.0_BETA2 (INSTALL) #1: Fri Jul 13 00:29:28 JST 2007

 	tsutsui@mirage:/r/work/src-
 4.0/src/sys/arch/alpha/compile/obj.alpha/INSTALL

 DEC2000 model 300, 150MHz, s/n 
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 21120 KB
 mainbus0 (root)
 cpu0 at mainbus0: ID 0 (primary), 21064-0
 jensenio0 at mainbus0
 pckbc0 at jensenio0 port 0x60
 pms0 at pckbc0 (aux slot)
 pckbc0: aux slot interrupting at vector 0x990
 wsmouse0 at pms0 (mux ignored)
 com0 at jensenio0 port 0x3f8: ns8250 or ns16450, no fifo
 com0: console
 com0: interrupting at vector 0x900
 com1 at jensenio0 port 0x2f8: ns8250 or ns16450, no fifo
 com1: interrupting at vector 0x920
 lpt0 at jensenio0 port 0x3bc
 panic: scb_set: bad vector 0x1

 Stopped in pid 0.1 (swapper) at 0xfffffc00005d9cc0:     ret     
 zero,(ra)
 ==============================

 Again, "trace" is empty.

 Regards, Christoph

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, port-alpha-maintainer@NetBSD.org,
	tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Tue, 17 Jul 2007 00:17:51 +0900

 ChristophFranzen@gmx.net wrote:

 > This one is better, but now looks to me a lot like the bug around 
 > version 1.6 (lpt port issue). I found something in the archives; 
 > Jason Thorpe apparently had fixed something like that in/before 1.6:
 > http://mail-index.netbsd.org/port-alpha/2002/06/26/0003.html
 > I wonder why it has come back, or is this a different issue?

 Looks Jason had a fix at that time but he had not committed it.

 With a quick glance, lpt at jensenio uses a real eisa interrupt,
 so I guess reverting lpt_jensenio.c rev 1.2 is enough.

 Could you try this one?
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070716.gz

 Index: jensenio/lpt_jensenio.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/jensenio/lpt_jensenio.c,v
 retrieving revision 1.5
 diff -u -r1.5 lpt_jensenio.c
 --- jensenio/lpt_jensenio.c	2 Oct 2002 04:06:38 -0000	1.5
 +++ jensenio/lpt_jensenio.c	16 Jul 2007 15:11:02 -0000
 @@ -71,8 +71,7 @@
  	struct lpt_softc sc_lpt;	/* real "lpt" softc */

  	/* Jensen-specific goo. */
 -	char	sc_vecstr[8];
 -	struct evcnt sc_ev_intr;
 +	void	*sc_ih;			/* interrupt handler */
  };

  int	lpt_jensenio_match(struct device *, struct cfdata *, void *);
 @@ -81,8 +80,6 @@
  CFATTACH_DECL(lpt_jensenio, sizeof(struct lpt_jensenio_softc),
      lpt_jensenio_match, lpt_jensenio_attach, NULL, NULL);

 -void	lpt_jensenio_intr(void *, u_long);
 -
  int
  lpt_jensenio_match(struct device *parent, struct cfdata *match, void *aux)
  {
 @@ -101,6 +98,7 @@
  	struct lpt_jensenio_softc *jsc = (void *)self;
  	struct lpt_softc *sc = &jsc->sc_lpt;
  	struct jensenio_attach_args *ja = aux;
 +	const char *intrstr;

  	sc->sc_iot = ja->ja_iot;

 @@ -114,20 +112,16 @@

  	lpt_attach_subr(sc);

 -	scb_set(ja->ja_irq[0], lpt_jensenio_intr, sc);
 -	printf("%s: interrupting at vector 0x%x\n",
 -	    sc->sc_dev.dv_xname, ja->ja_irq[0]);
 -
 -	sprintf(jsc->sc_vecstr, "0x%x", ja->ja_irq[0]);
 -	evcnt_attach_dynamic(&jsc->sc_ev_intr, EVCNT_TYPE_INTR,
 -	    NULL, "vector", jsc->sc_vecstr);
 -}
 -
 -void
 -lpt_jensenio_intr(void *arg, u_long vec)
 -{
 -	struct lpt_jensenio_softc *jsc = arg;
 -
 -	jsc->sc_ev_intr.ev_count++;
 -	(void) lptintr(&jsc->sc_lpt);
 +	intrstr = eisa_intr_string(ja->ja_ec, ja->ja_irq[0]);
 +	jsc->sc_ih = eisa_intr_establish(ja->ja_ec, ja->ja_irq[0],
 +	    IST_EDGE, IPL_TTY, lptintr, sc);
 +	if (jsc->sc_ih == NULL) {
 +		printf("%s: unable to establish interrupt",
 +		    sc->sc_dev.dv_xname);
 +		if (intrstr != NULL)
 +			printf(" at %s", intrstr);
 +		printf("\n");
 +		return;
 +	}
 +	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
  }


 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: gnats-bugs@NetBSD.org
Cc: port-alpha-maintainer@netbsd.org, gnats-admin@netbsd.org,
	netbsd-bugs@netbsd.org, ChristophFranzen@gmx.net
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Mon, 16 Jul 2007 21:47:25 +0200

 >  With a quick glance, lpt at jensenio uses a real eisa interrupt, so I
 >  guess reverting lpt_jensenio.c rev 1.2 is enough.
 > 
 >  Could you try this one?
 >  http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070716.gz

 Thank you, but there is still something broken. Now it says "eisa irq 
 1" instead of "bad vector 0x1" while the other items all look like 
 "interupting at vector 0x###":

 =========================
 9057152+177808=0x8cef90

 Entering netbsd at 0xfffffc00003012e0...
 [...]
 NetBSD 4.0_BETA2 (INSTALL) #2: Tue Jul 17 00:06:33 JST 2007

 	tsutsui@mirage:/r/work/src-
 4.0/src/sys/arch/alpha/compile/obj.alpha/INSTALL

 DEC2000 model 300, 150MHz, s/n 
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 21120 KB
 mainbus0 (root)
 cpu0 at mainbus0: ID 0 (primary), 21064-0
 jensenio0 at mainbus0
 pckbc0 at jensenio0 port 0x60
 pms0 at pckbc0 (aux slot)
 pckbc0: aux slot interrupting at vector 0x990
 wsmouse0 at pms0 (mux ignored)
 com0 at jensenio0 port 0x3f8: ns8250 or ns16450, no fifo
 com0: console
 com0: interrupting at vector 0x900
 com1 at jensenio0 port 0x2f8: ns8250 or ns16450, no fifo
 com1: interrupting at vector 0x920
 lpt0 at jensenio0 port 0x3bc
 lpt0: interrupting at eisa irq 1
 mcclock0 at jensenio0 port 0x170: mc146818 or compatible
 eisa0 at jensenio0

 CPU 0: fatal kernel trap:

 CPU 0    trap entry = 0x2 (memory management fault)
 CPU 0    a0         = 0xfffffe0000058000
 CPU 0    a1         = 0x1
 CPU 0    a2         = 0x0
 CPU 0    pc         = 0xfffffc000058fa10
 CPU 0    ra         = 0xfffffc000058ffa8
 CPU 0    pv         = 0xfffffc00005f06c0
 CPU 0    curlwp    = 0xfffffc0000bc3320
 CPU 0        pid = 0, comm = swapper

 panic: trap

 Stopped in pid 0.1 (swapper) at 0xfffffc00005d9cb8:     ret     
 zero,(ra)
 =========================

 Regards, Christoph

Responsible-Changed-From-To: port-alpha-maintainer->tsutsui
Responsible-Changed-By: tsutsui@netbsd.org
Responsible-Changed-When: Tue, 17 Jul 2007 18:56:52 +0900
Responsible-Changed-Why:
I'll take this one.


From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, port-alpha-maintainer@NetBSD.org,
	tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Tue, 17 Jul 2007 19:10:56 +0900

 ChristophFranzen@gmx.net wrote:

 > >  Could you try this one?
 > >  http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070716.gz
 > 
 > Thank you, but there is still something broken. Now it says "eisa irq 
 > 1" instead of "bad vector 0x1" while the other items all look like 
 > "interupting at vector 0x###":

 "eisa irq 1" is okay according to this (old but working) dmesg:
 http://mail-index.netbsd.org/port-alpha/2000/07/12/0002.html

 > com1: interrupting at vector 0x920
 > lpt0 at jensenio0 port 0x3bc
 > lpt0: interrupting at eisa irq 1
 > mcclock0 at jensenio0 port 0x170: mc146818 or compatible
 > eisa0 at jensenio0
 > 
 > CPU 0: fatal kernel trap:
 > 
 > CPU 0    trap entry = 0x2 (memory management fault)
 > CPU 0    a0         = 0xfffffe0000058000
 > CPU 0    a1         = 0x1
 > CPU 0    a2         = 0x0
 > CPU 0    pc         = 0xfffffc000058fa10
 > CPU 0    ra         = 0xfffffc000058ffa8

 This is another failure in alpha/eisa/eisa_machdep.c:eisa_read_config_bytes()
 called from eisa_init() and there was the similar report:
 http://mail-index.netbsd.org/port-alpha/2000/12/07/0009.html

 I'm not sure how such NULL pointer deference could happen,
 but could you try this debug kernel?

 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070717.gz


 Index: eisa/eisa_machdep.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/eisa/eisa_machdep.c,v
 retrieving revision 1.5
 diff -u -r1.5 eisa_machdep.c
 --- eisa/eisa_machdep.c	1 Jun 2002 23:50:53 -0000	1.5
 +++ eisa/eisa_machdep.c	17 Jul 2007 10:02:05 -0000
 @@ -162,7 +162,7 @@
  	int i;

  	for (i = 0; i < ECUF_MEM_ENTRY_CNT; i++) {
 -		ecum = malloc(sizeof(*ecum), M_DEVBUF, M_WAITOK);
 +		ecum = malloc(sizeof(*ecum), M_DEVBUF, M_ZERO|M_WAITOK);

  		ecum->ecum_mem.ecm_isram = dp[0] & 0x1;
  		ecum->ecum_mem.ecm_unitsize = dp[1] & 0x3;
 @@ -174,7 +174,7 @@
  			ecum->ecum_mem.ecm_size = (1 << 26);
  		SIMPLEQ_INSERT_TAIL(&ecuf->ecuf_mem, ecum, ecum_list);

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("MEM 0x%lx 0x%lx %d %d %d\n",
  		    ecum->ecum_mem.ecm_addr, ecum->ecum_mem.ecm_size,
  		    ecum->ecum_mem.ecm_isram, ecum->ecum_mem.ecm_unitsize,
 @@ -194,17 +194,17 @@
  	int i;

  	for (i = 0; i < ECUF_IRQ_ENTRY_CNT; i++) {
 -		ecui = malloc(sizeof(*ecui), M_DEVBUF, M_WAITOK);
 +		ecui = malloc(sizeof(*ecui), M_DEVBUF, M_ZERO|M_WAITOK);

  		ecui->ecui_irq.eci_irq = dp[0] & 0xf;
  		ecui->ecui_irq.eci_ist = (dp[0] & 0x20) ? IST_LEVEL : IST_EDGE;
  		ecui->ecui_irq.eci_shared = (dp[0] & 0x40) ? 1 : 0;
  		SIMPLEQ_INSERT_TAIL(&ecuf->ecuf_irq, ecui, ecui_list);

 -#if 0
 -		printf("IRQ %d %s%s\n", ecui->eci_irq.ecui_irq,
 -		    ecui->eci_irq.ecui_ist == IST_LEVEL ? "level" : "edge",
 -		    ecui->eci_irq.ecui_shared ? " shared" : "");
 +#ifdef EISA_DEBUG
 +		printf("IRQ %d %s%s\n", ecui->ecui_irq.eci_irq,
 +		    ecui->ecui_irq.eci_ist == IST_LEVEL ? "level" : "edge",
 +		    ecui->ecui_irq.eci_shared ? " shared" : "");
  #endif

  		if ((dp[0] & 0x80) == 0)
 @@ -220,7 +220,7 @@
  	int i;

  	for (i = 0; i < ECUF_DMA_ENTRY_CNT; i++) {
 -		ecud = malloc(sizeof(*ecud), M_DEVBUF, M_WAITOK);
 +		ecud = malloc(sizeof(*ecud), M_DEVBUF, M_ZERO|M_WAITOK);

  		ecud->ecud_dma.ecd_drq = dp[0] & 0x7;
  		ecud->ecud_dma.ecd_shared = dp[0] & 0x40;
 @@ -228,7 +228,7 @@
  		ecud->ecud_dma.ecd_timing = (dp[1] >> 4) & 0x3;
  		SIMPLEQ_INSERT_TAIL(&ecuf->ecuf_dma, ecud, ecud_list);

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("DRQ %d%s %d %d\n", ecud->ecud_dma.ecd_drq,
  		    ecud->ecud_dma.ecd_shared ? " shared" : "",
  		    ecud->ecud_dma.ecd_size, ecud->ecud_dma.ecd_timing);
 @@ -247,13 +247,13 @@
  	int i;

  	for (i = 0; i < ECUF_IO_ENTRY_CNT; i++) {
 -		ecuio = malloc(sizeof(*ecuio), M_DEVBUF, M_WAITOK);
 +		ecuio = malloc(sizeof(*ecuio), M_DEVBUF, M_ZERO|M_WAITOK);

  		ecuio->ecuio_io.ecio_addr = dp[1] | (dp[2] << 8);
  		ecuio->ecuio_io.ecio_size = (dp[0] & 0x1f) + 1;
  		ecuio->ecuio_io.ecio_shared = (dp[0] & 0x40) ? 1 : 0;

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("IO 0x%lx 0x%lx%s\n", ecuio->ecuio_io.ecio_addr,
  		    ecuio->ecuio_io.ecio_size,
  		    ecuio->ecuio_io.ecio_shared ? " shared" : "");
 @@ -340,11 +340,15 @@
  	}

  	eisa_config_header_addr = hwrpb->rpb_condat_off;
 -#if 0
 +#ifdef EISA_DEBUG
  	printf("\nEISA config header at 0x%lx\n", eisa_config_header_addr);
  #endif
  	if (eisa_config_stride == 0)
  		eisa_config_stride = 1;
 +#ifdef EISA_DEBUG
 +	printf("EISA config at 0x%lx\n", eisa_config_addr);
 +	printf("EISA config stride: %ld\n", eisa_config_stride);
 +#endif

  	/*
  	 * Read the slot headers, and allocate config structures for
 @@ -358,12 +362,14 @@
  		cfgaddr += sizeof(offset) * eisa_config_stride;

  		if (offset != 0) {
 -#if 0
 +#ifdef EISA_DEBUG
  			printf("SLOT %d: offset 0x%08x eisaid %s\n",
  			    i, offset, eisaid);
  #endif
 -			ecud = malloc(sizeof(*ecud), M_DEVBUF, M_WAITOK);
 -			memset(ecud, 0, sizeof(*ecud));
 +			ecud = malloc(sizeof(*ecud), M_DEVBUF, M_ZERO|M_WAITOK);
 +			if (ecud == NULL)
 +				panic("%s: can't allocate memory for ecud",
 +				    __func__);

  			SIMPLEQ_INIT(&ecud->ecud_funcs);

 @@ -378,22 +384,33 @@
  	 * Now traverse the valid slots and read the info.
  	 */

 -	cdata = malloc(512, M_TEMP, M_WAITOK);
 -	data = malloc(512, M_TEMP, M_WAITOK);
 +	cdata = malloc(512, M_TEMP, M_ZERO|M_WAITOK);
 +	if (cdata == NULL)
 +		panic("%s: can't allocate memory for cdata", __func__);
 +	data = malloc(512, M_TEMP, M_ZERO|M_WAITOK);
 +	if (data == NULL)
 +		panic("%s: can't allocate memory for data", __func__);

  	SIMPLEQ_FOREACH(ecud, &ecu_data_list, ecud_list) {
  		cfgaddr = eisa_config_addr + ecud->ecud_offset;
 +#ifdef EISA_DEBUG
 +		printf("Reading config bytes to cdata[0] at 0x%lx\n", cfgaddr);
 +#endif
  		eisa_read_config_bytes(cfgaddr, &cdata[0], 1);
  		cfgaddr += eisa_config_stride;

  		for (i = 1; ; cfgaddr += eisa_config_stride, i++) {
 +#ifdef EISA_DEBUG
 +			printf("Reading config bytes to cdata[%d] at 0x%lx\n",
 +			    i, cfgaddr);
 +#endif
  			eisa_read_config_bytes(cfgaddr, &cdata[i], 1);
  			if (cdata[i - 1] == 0 && cdata[i] == 0)
  				break;
  		}
  		i++;	/* index -> length */

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("SLOT %d compressed data length %d:",
  		    ecud->ecud_slot, i);
  		{
 @@ -413,7 +430,7 @@

  		/* Uncompress the slot header. */
  		cdp += eisa_uncompress(cdp, dp, EISA_SLOT_HEADER_SIZE);
 -#if 0
 +#ifdef EISA_DEBUG
  		printf("SLOT %d uncompressed header data:",
  		    ecud->ecud_slot);
  		{
 @@ -439,7 +456,7 @@
  		memcpy(&ecud->ecud_comp_id, dp, sizeof(ecud->ecud_comp_id));
  		dp += sizeof(ecud->ecud_comp_id);

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("SLOT %d: ndevfuncs %d\n", ecud->ecud_slot,
  		    ecud->ecud_ndevfuncs);
  #endif
 @@ -447,7 +464,7 @@
  		for (func = 0; func < ecud->ecud_ndevfuncs; func++) {
  			dp = data;
  			cdp += eisa_uncompress(cdp, dp, EISA_CONFIG_BLOCK_SIZE);
 -#if 0
 +#ifdef EISA_DEBUG
  			printf("SLOT %d:%d uncompressed data:",
  			    ecud->ecud_slot, func);
  			{
 @@ -464,7 +481,7 @@

  			/* Skip disabled functions. */
  			if (dp[EISA_FUNC_INFO_OFFSET] & ECUF_DISABLED) {
 -#if 0
 +#ifdef EISA_DEBUG
  				printf("SLOT %d:%d disabled\n",
  				    ecud->ecud_slot, func);
  #endif


 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org, gnats-admin@netbsd.org,
	netbsd-bugs@netbsd.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Thu, 19 Jul 2007 01:14:16 +0200

 >  but could you try this debug kernel?
 > 
 >  http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070717.gz

 Well, this one is interesting, but not yet usable:

 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
 mainbus0 (root)
 cpu0 at mainbus0: ID 0 (primary), 21064-0
 jensenio0 at mainbus0
 pckbc0 at jensenio0 port 0x60
 pms0 at pckbc0 (aux slot)
 pckbc0: aux slot interrupting at vector 0x990
 wsmouse0 at pms0 (mux ignored)
 com0 at jensenio0 port 0x3f8: ns8250 or ns16450, no fifo
 com0: console
 com0: interrupting at vector 0x900
 com1 at jensenio0 port 0x2f8: ns8250 or ns16450, no fifo
 com1: interrupting at vector 0x920
 lpt0 at jensenio0 port 0x3bc
 lpt0: interrupting at eisa irq 1
 mcclock0 at jensenio0 port 0x170: mc146818 or compatible
 eisa0 at jensenio0
 EISA config header at 0x1ac061000
 EISA config at 0x1a0000000
 EISA config stride: 512
 SLOT 0: offset 0x18386800 eisaid DEC2400
 SLOT 1: offset 0x18397000 eisaid ELS8041
 SLOT 2: offset 0x183b4800 eisaid ADP0002
 SLOT 3: offset 0x183c6400 eisaid CPQ6101
 SLOT 8: offset 0x00000008 eisaid =DD=DD=DD=DD=DD=DD=DD
 SLOT 9: offset 0x00009b63 eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 10: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 11: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 12: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 13: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 14: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 15: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 Reading config bytes to cdata[0] at 0x1b8386800
 Reading config bytes to cdata[1] at 0x1b8386a00
 Reading config bytes to cdata[2] at 0x1b8386c00
 Reading config bytes to cdata[3] at 0x1b8386e00
 Reading config bytes to cdata[4] at 0x1b8387000
 Reading config bytes to cdata[5] at 0x1b8387200
 Reading config bytes to cdata[6] at 0x1b8387400
 Reading config bytes to cdata[7] at 0x1b8387600
 Reading config bytes to cdata[8] at 0x1b8387800
 Reading config bytes to cdata[9] at 0x1b8387a00
 Reading config bytes to cdata[10] at 0x1b8387c00
 Reading config bytes to cdata[11] at 0x1b8387e00
 Reading config bytes to cdata[12] at 0x1b8388000
 Reading config bytes to cdata[13] at 0x1b8388200
 Reading config bytes to cdata[14] at 0x1b8388400
 Reading config bytes to cdata[15] at 0x1b8388600
 Reading config bytes to cdata[16] at 0x1b8388800
 Reading config bytes to cdata[17] at 0x1b8388a00
 Reading config bytes to cdata[18] at 0x1b8388c00
 Reading config bytes to cdata[19] at 0x1b8388e00
 Reading config bytes to cdata[20] at 0x1b8389000
 Reading config bytes to cdata[21] at 0x1b8389200
 Reading config bytes to cdata[22] at 0x1b8389400
 Reading config bytes to cdata[23] at 0x1b8389600
 Reading config bytes to cdata[24] at 0x1b8389800
 Reading config bytes to cdata[25] at 0x1b8389a00
 Reading config bytes to cdata[26] at 0x1b8389c00
 Reading config bytes to cdata[27] at 0x1b8389e00
 Reading config bytes to cdata[28] at 0x1b838a000
 Reading config bytes to cdata[29] at 0x1b838a200
 Reading config bytes to cdata[30] at 0x1b838a400
 Reading config bytes to cdata[31] at 0x1b838a600
 Reading config bytes to cdata[32] at 0x1b838a800
 Reading config bytes to cdata[33] at 0x1b838aa00
 Reading config bytes to cdata[34] at 0x1b838ac00
 Reading config bytes to cdata[35] at 0x1b838ae00
 Reading config bytes to cdata[36] at 0x1b838b000
 Reading config bytes to cdata[37] at 0x1b838b200
 Reading config bytes to cdata[38] at 0x1b838b400
 Reading config bytes to cdata[39] at 0x1b838b600
 Reading config bytes to cdata[40] at 0x1b838b800
 Reading config bytes to cdata[41] at 0x1b838ba00
 Reading config bytes to cdata[42] at 0x1b838bc00
 Reading config bytes to cdata[43] at 0x1b838be00
 Reading config bytes to cdata[44] at 0x1b838c000
 Reading config bytes to cdata[45] at 0x1b838c200
 Reading config bytes to cdata[46] at 0x1b838c400
 Reading config bytes to cdata[47] at 0x1b838c600
 Reading config bytes to cdata[48] at 0x1b838c800
 Reading config bytes to cdata[49] at 0x1b838ca00
 Reading config bytes to cdata[50] at 0x1b838cc00
 Reading config bytes to cdata[51] at 0x1b838ce00
 Reading config bytes to cdata[52] at 0x1b838d000
 Reading config bytes to cdata[53] at 0x1b838d200
 Reading config bytes to cdata[54] at 0x1b838d400
 Reading config bytes to cdata[55] at 0x1b838d600
 Reading config bytes to cdata[56] at 0x1b838d800
 Reading config bytes to cdata[57] at 0x1b838da00
 Reading config bytes to cdata[58] at 0x1b838dc00
 Reading config bytes to cdata[59] at 0x1b838de00
 Reading config bytes to cdata[60] at 0x1b838e000
 Reading config bytes to cdata[61] at 0x1b838e200
 Reading config bytes to cdata[62] at 0x1b838e400
 Reading config bytes to cdata[63] at 0x1b838e600
 Reading config bytes to cdata[64] at 0x1b838e800
 Reading config bytes to cdata[65] at 0x1b838ea00
 Reading config bytes to cdata[66] at 0x1b838ec00
 Reading config bytes to cdata[67] at 0x1b838ee00
 Reading config bytes to cdata[68] at 0x1b838f000
 Reading config bytes to cdata[69] at 0x1b838f200
 Reading config bytes to cdata[70] at 0x1b838f400
 Reading config bytes to cdata[71] at 0x1b838f600
 Reading config bytes to cdata[72] at 0x1b838f800
 Reading config bytes to cdata[73] at 0x1b838fa00
 Reading config bytes to cdata[74] at 0x1b838fc00
 Reading config bytes to cdata[75] at 0x1b838fe00
 Reading config bytes to cdata[76] at 0x1b8390000
 Reading config bytes to cdata[77] at 0x1b8390200
 Reading config bytes to cdata[78] at 0x1b8390400
 Reading config bytes to cdata[79] at 0x1b8390600
 Reading config bytes to cdata[80] at 0x1b8390800
 Reading config bytes to cdata[81] at 0x1b8390a00
 Reading config bytes to cdata[82] at 0x1b8390c00
 Reading config bytes to cdata[83] at 0x1b8390e00
 Reading config bytes to cdata[84] at 0x1b8391000
 Reading config bytes to cdata[85] at 0x1b8391200
 Reading config bytes to cdata[86] at 0x1b8391400
 Reading config bytes to cdata[87] at 0x1b8391600
 Reading config bytes to cdata[88] at 0x1b8391800
 Reading config bytes to cdata[89] at 0x1b8391a00
 Reading config bytes to cdata[90] at 0x1b8391c00
 Reading config bytes to cdata[91] at 0x1b8391e00
 Reading config bytes to cdata[92] at 0x1b8392000
 Reading config bytes to cdata[93] at 0x1b8392200
 Reading config bytes to cdata[94] at 0x1b8392400
 Reading config bytes to cdata[95] at 0x1b8392600
 Reading config bytes to cdata[96] at 0x1b8392800
 Reading config bytes to cdata[97] at 0x1b8392a00
 Reading config bytes to cdata[98] at 0x1b8392c00
 Reading config bytes to cdata[99] at 0x1b8392e00
 Reading config bytes to cdata[100] at 0x1b8393000
 Reading config bytes to cdata[101] at 0x1b8393200
 Reading config bytes to cdata[102] at 0x1b8393400
 Reading config bytes to cdata[103] at 0x1b8393600
 Reading config bytes to cdata[104] at 0x1b8393800
 Reading config bytes to cdata[105] at 0x1b8393a00
 Reading config bytes to cdata[106] at 0x1b8393c00
 Reading config bytes to cdata[107] at 0x1b8393e00
 Reading config bytes to cdata[108] at 0x1b8394000
 Reading config bytes to cdata[109] at 0x1b8394200
 Reading config bytes to cdata[110] at 0x1b8394400
 Reading config bytes to cdata[111] at 0x1b8394600
 Reading config bytes to cdata[112] at 0x1b8394800
 Reading config bytes to cdata[113] at 0x1b8394a00
 Reading config bytes to cdata[114] at 0x1b8394c00
 Reading config bytes to cdata[115] at 0x1b8394e00
 Reading config bytes to cdata[116] at 0x1b8395000
 Reading config bytes to cdata[117] at 0x1b8395200
 Reading config bytes to cdata[118] at 0x1b8395400
 Reading config bytes to cdata[119] at 0x1b8395600
 Reading config bytes to cdata[120] at 0x1b8395800
 Reading config bytes to cdata[121] at 0x1b8395a00
 Reading config bytes to cdata[122] at 0x1b8395c00
 Reading config bytes to cdata[123] at 0x1b8395e00
 Reading config bytes to cdata[124] at 0x1b8396000
 Reading config bytes to cdata[125] at 0x1b8396200
 Reading config bytes to cdata[126] at 0x1b8396400
 Reading config bytes to cdata[127] at 0x1b8396600
 Reading config bytes to cdata[128] at 0x1b8396800
 Reading config bytes to cdata[129] at 0x1b8396a00
 Reading config bytes to cdata[130] at 0x1b8396c00
 Reading config bytes to cdata[131] at 0x1b8396e00
 SLOT 0 compressed data length 132:
 0x01 0x00 0x01 0x01 0x00 0x01 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 
 0x20 0xbf 
 0x98 0x80 0x28 0xbf 0x98 0x80 0x11 0x01 0x27 0x55 0xa1 0x04 0x1d 0x10 
 0xa3 0x24 
 0x00 0x01 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 0x01 0x43 0x4f 0x4d 
 0x31 0x00 
 0xff 0x00 0x1a 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 0x01 0x43 0x4f 
 0x4d 0x32 
 0x00 0xff 0x00 0x1a 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 0x05 0x4c 
 0x50 0x54 
 0x31 0x00 0x8b 0x01 0x00 0x8d 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 
 0x1d 0x46 
 0x4c 0x4f 0x50 0x50 0x59 0x20 0x44 0x49 0x53 0x4b 0x20 0x43 0x4f 0x4e 
 0x54 0x52 
 0x4f 0x4c 0x4c 0x45 0x52 0x00 0x79 0x06 0x00 0x0d 0x02 0x00 0x07 0x07 
 0xf0 0x03 
 0x00 0x75 0x00 0x00 
 SLOT 0 uncompressed header data:
 0x01 0x00 0x01 0x00 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 0x20 0xbf 
 0x98 0x80 
 0x28 0xbf 0x98 0x80 0x11 0x01 0x27 0x55 0xa1 0x04 0x1d 0x10 0xa3 0x24 
 0x00 
 SLOT 0: ndevfuncs 4
 SLOT 0:0 uncompressed data:
 0x10 0xa3 0x24 0x00 0x11 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x01 0x43 0x4f 0x4d 0x31 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x01 0x00 0x01 0x01 0x00 0x01 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 
 0x20 0xbf 
 0x98 0x80 0x28 0xbf 0x98 0x80 0x11 0x01 0x27 0x55 0xa1 0x04 0x1d 0x10 
 0xa3 0x24 
 0x00 0x01 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 0x01 0x43 0x4f 0x4d 
 0x31 0x00 
 0xff 0x00 0x1a 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 0x01 0x43 0x4f 
 0x4d 0x32 
 0x00 0xff 0x00 0x1a 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 0x05 0x4c 
 0x50 0x54 
 0x31 0x00 0x8b 0x01 0x00 0x8d 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 
 0x1d 0x46 
 0x4c 0x4f 0x50 0x50 0x59 0x20 0x44 0x49 0x53 0x4b 0x20 0x43 0x4f 0x4e 
 0x54 0x52 
 0x4f 0x4c 0x4c 0x45 0x52 0x00 0x79 0x06 0x00 0x0d 0x02 0x00 0x07 0x07 
 0xf0 0x03 
 0x00 0x75 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 [...]
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 CPU 0: fatal kernel trap:
 CPU 0    trap entry =3D 0x2 (memory management fault)
 CPU 0    a0         =3D 0xfffffe0000058000
 CPU 0    a1         =3D 0x1
 CPU 0    a2         =3D 0x0
 CPU 0    pc         =3D 0xfffffc00005903b0
 CPU 0    ra         =3D 0xfffffc00005903a4
 CPU 0    pv         =3D 0xfffffc00004974a0
 CPU 0    curlwp    =3D 0xfffffc0000bc3940
 CPU 0        pid =3D 0, comm =3D swapper
 panic: trap
 Stopped in pid 0.1 (swapper) at 0xfffffc00005da0c0:     ret     
 zero,(ra)
 db> 
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

 Regards, Christoph

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, gnats-admin@NetBSD.org,
	netbsd-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Thu, 19 Jul 2007 21:33:36 +0900

 ChristophFranzen@gmx.net wrote:

 > >  http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070717.gz
 > 
 > Well, this one is interesting, but not yet usable:
  :
 > eisa0 at jensenio0
 > EISA config header at 0x1ac061000
 > EISA config at 0x1a0000000
 > EISA config stride: 512
 > SLOT 0: offset 0x18386800 eisaid DEC2400
 > SLOT 1: offset 0x18397000 eisaid ELS8041
 > SLOT 2: offset 0x183b4800 eisaid ADP0002
 > SLOT 3: offset 0x183c6400 eisaid CPQ6101
  :
 > SLOT 0: ndevfuncs 4
 > SLOT 0:0 uncompressed data:
 > 0x10 0xa3 0x24 0x00 0x11 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 > 0x00 0x00 
  :
 > [...]
 > 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 > 0x00 0x00 
 > CPU 0: fatal kernel trap:
 > CPU 0    trap entry = 0x2 (memory management fault)
 > CPU 0    a0         = 0xfffffe0000058000
 > CPU 0    a1         = 0x1
 > CPU 0    a2         = 0x0
 > CPU 0    pc         = 0xfffffc00005903b0
 > CPU 0    ra         = 0xfffffc00005903a4

 Umm, it fails at different place from the previous one..

 I've added more debug info printfs, could you try the next one?
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070719.gz
 ---
 Izumi Tsutsui

From: Izumi Tsutsui <tsutsui@netbsd.org>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: PR/36628 CVS commit: src/sys/arch/alpha/alpha
Date: Thu, 19 Jul 2007 12:46:45 +0000 (UTC)

 Module Name:	src
 Committed By:	tsutsui
 Date:		Thu Jul 19 12:46:45 UTC 2007

 Modified Files:
 	src/sys/arch/alpha/alpha: dec_2000_300.c

 Log Message:
 Avoid NULL pointer dereference in MD device_register() function.
 Fixes a part of PR port-alpha/36628.


 To generate a diff of this commit:
 cvs rdiff -r1.13 -r1.14 src/sys/arch/alpha/alpha/dec_2000_300.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

From: Izumi Tsutsui <tsutsui@netbsd.org>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: PR/36628 CVS commit: src/sys/arch/alpha/jensenio
Date: Thu, 19 Jul 2007 12:58:29 +0000 (UTC)

 Module Name:	src
 Committed By:	tsutsui
 Date:		Thu Jul 19 12:58:29 UTC 2007

 Modified Files:
 	src/sys/arch/alpha/jensenio: lpt_jensenio.c

 Log Message:
 Backout changes on lpt_jensenio.c rev 1.2.
 lpt at jensenio doesn't seem to have a specific interrupt vector
 but uses a normal EISA interrupt.

 Fixes another part of PR port-alpha/36628 and PR port-alpha/20386.


 To generate a diff of this commit:
 cvs rdiff -r1.5 -r1.6 src/sys/arch/alpha/jensenio/lpt_jensenio.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: gnats-bugs@NetBSD.org
Cc: ChristophFranzen@gmx.net, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Sat, 21 Jul 2007 05:24:22 +0900

 ChristophFranzen@gmx.net wrote:

 > the Result is attached.
  :
 > > http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070719.gz
 > 
 > I did not send this to GNATS because the attachment ist rather large, 
 > and I don't know which information you need so I haven't shortened 
 > the file.

 Thanks, it shows that reading config data region of invalid slots
 causes the problem:

 ---
  :

 eisa0 at jensenio0
 EISA config header at 0x1ac061000
 EISA config at 0x1a0000000
 EISA config stride: 512
 SLOT 0: offset 0x18386800 eisaid DEC2400
 SLOT 1: offset 0x18397000 eisaid ELS8041
 SLOT 2: offset 0x183b4800 eisaid ADP0002
 SLOT 3: offset 0x183c6400 eisaid CPQ6101
 SLOT 8: offset 0x00000008 eisaid <DD><DD><DD><DD><DD><DD><DD>
 SLOT 9: offset 0x00009b63 eisaid <FF><FF><FF><FF><FF><FF><FF>
 SLOT 10: offset 0xffffffff eisaid <FF><FF><FF><FF><FF><FF><FF>
 SLOT 11: offset 0xffffffff eisaid <FF><FF><FF><FF><FF><FF><FF>
 SLOT 12: offset 0xffffffff eisaid <FF><FF><FF><FF><FF><FF><FF>
 SLOT 13: offset 0xffffffff eisaid <FF><FF><FF><FF><FF><FF><FF>
 SLOT 14: offset 0xffffffff eisaid <FF><FF><FF><FF><FF><FF><FF>
 SLOT 15: offset 0xffffffff eisaid <FF><FF><FF><FF><FF><FF><FF>

  :

 SLOT 8 compressed data length 48:
 0x01 0x09 0x10 0x01 0x55 0x00 0xaa 0xff 0x56 0x31 0x2e 0x31 0x20 0x20 0x20 0x20 
 0x44 0x45 0x43 0x20 0x20 0x20 0x20 0x20 0x4a 0x45 0x4e 0x53 0x5f 0x53 0x59 0x53 
 0x41 0x4c 0x50 0x48 0xff 0xff 0xff 0xff 0x17 0x01 0x01 0x00 0xc0 0x03 0x00 0x00 
 SLOT 8 uncompressed header data:
 0x01 0x09 0x10 0x01 0x55 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 SLOT 8: ndevfuncs 0
 Slot 8:0 done
 Reading config bytes to cdata[0] at 0x1a0009b63
 Reading config bytes to cdata[1] at 0x1a0009d63

  :

 Reading config bytes to cdata[62463] at 0x1a1e89963
 Reading config bytes to cdata[62464] at 0x1a1e89b63

 CPU 0: fatal kernel trap:

 CPU 0    trap entry = 0x2 (memory management fault)
 CPU 0    a0         = 0xfffffe0000058000
 CPU 0    a1         = 0x1
 CPU 0    a2         = 0x0
 CPU 0    pc         = 0xfffffc000058fa10
 CPU 0    ra         = 0xfffffc000059008c
  :
 ---

 Maybe we shouldn't check slots more than 8 at least on Jensen
 (though I'm not sure how it worked in the past).
 How about this one?

 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070720.gz

 ---
 Index: eisa/eisa_machdep.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/eisa/eisa_machdep.c,v
 retrieving revision 1.5
 diff -u -r1.5 eisa_machdep.c
 --- eisa/eisa_machdep.c	1 Jun 2002 23:50:53 -0000	1.5
 +++ eisa/eisa_machdep.c	20 Jul 2007 20:20:21 -0000
 @@ -79,6 +79,7 @@
  #define	ECUF_DMA_ENTRY_CNT	4
  #define	ECUF_IO_ENTRY_CNT	20

 +#define	CBUFSIZE		512
  /*
   * EISA configuration space, as set up by the ECU, may be sparse.
   */
 @@ -162,7 +163,9 @@
  	int i;

  	for (i = 0; i < ECUF_MEM_ENTRY_CNT; i++) {
 -		ecum = malloc(sizeof(*ecum), M_DEVBUF, M_WAITOK);
 +		ecum = malloc(sizeof(*ecum), M_DEVBUF, M_ZERO|M_WAITOK);
 +		if (ecum == NULL)
 +			panic("%s: can't allocate memory for ecum", __func__);

  		ecum->ecum_mem.ecm_isram = dp[0] & 0x1;
  		ecum->ecum_mem.ecm_unitsize = dp[1] & 0x3;
 @@ -174,7 +177,7 @@
  			ecum->ecum_mem.ecm_size = (1 << 26);
  		SIMPLEQ_INSERT_TAIL(&ecuf->ecuf_mem, ecum, ecum_list);

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("MEM 0x%lx 0x%lx %d %d %d\n",
  		    ecum->ecum_mem.ecm_addr, ecum->ecum_mem.ecm_size,
  		    ecum->ecum_mem.ecm_isram, ecum->ecum_mem.ecm_unitsize,
 @@ -194,17 +197,19 @@
  	int i;

  	for (i = 0; i < ECUF_IRQ_ENTRY_CNT; i++) {
 -		ecui = malloc(sizeof(*ecui), M_DEVBUF, M_WAITOK);
 +		ecui = malloc(sizeof(*ecui), M_DEVBUF, M_ZERO|M_WAITOK);
 +		if (ecui == NULL)
 +			panic("%s: can't allocate memory for ecui", __func__);

  		ecui->ecui_irq.eci_irq = dp[0] & 0xf;
  		ecui->ecui_irq.eci_ist = (dp[0] & 0x20) ? IST_LEVEL : IST_EDGE;
  		ecui->ecui_irq.eci_shared = (dp[0] & 0x40) ? 1 : 0;
  		SIMPLEQ_INSERT_TAIL(&ecuf->ecuf_irq, ecui, ecui_list);

 -#if 0
 -		printf("IRQ %d %s%s\n", ecui->eci_irq.ecui_irq,
 -		    ecui->eci_irq.ecui_ist == IST_LEVEL ? "level" : "edge",
 -		    ecui->eci_irq.ecui_shared ? " shared" : "");
 +#ifdef EISA_DEBUG
 +		printf("IRQ %d %s%s\n", ecui->ecui_irq.eci_irq,
 +		    ecui->ecui_irq.eci_ist == IST_LEVEL ? "level" : "edge",
 +		    ecui->ecui_irq.eci_shared ? " shared" : "");
  #endif

  		if ((dp[0] & 0x80) == 0)
 @@ -220,7 +225,9 @@
  	int i;

  	for (i = 0; i < ECUF_DMA_ENTRY_CNT; i++) {
 -		ecud = malloc(sizeof(*ecud), M_DEVBUF, M_WAITOK);
 +		ecud = malloc(sizeof(*ecud), M_DEVBUF, M_ZERO|M_WAITOK);
 +		if (ecud == NULL)
 +			panic("%s: can't allocate memory for ecud", __func__);

  		ecud->ecud_dma.ecd_drq = dp[0] & 0x7;
  		ecud->ecud_dma.ecd_shared = dp[0] & 0x40;
 @@ -228,7 +235,7 @@
  		ecud->ecud_dma.ecd_timing = (dp[1] >> 4) & 0x3;
  		SIMPLEQ_INSERT_TAIL(&ecuf->ecuf_dma, ecud, ecud_list);

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("DRQ %d%s %d %d\n", ecud->ecud_dma.ecd_drq,
  		    ecud->ecud_dma.ecd_shared ? " shared" : "",
  		    ecud->ecud_dma.ecd_size, ecud->ecud_dma.ecd_timing);
 @@ -247,13 +254,15 @@
  	int i;

  	for (i = 0; i < ECUF_IO_ENTRY_CNT; i++) {
 -		ecuio = malloc(sizeof(*ecuio), M_DEVBUF, M_WAITOK);
 +		ecuio = malloc(sizeof(*ecuio), M_DEVBUF, M_ZERO|M_WAITOK);
 +		if (ecuio == NULL)
 +			panic("%s: can't allocate memory for ecuio", __func__);

  		ecuio->ecuio_io.ecio_addr = dp[1] | (dp[2] << 8);
  		ecuio->ecuio_io.ecio_size = (dp[0] & 0x1f) + 1;
  		ecuio->ecuio_io.ecio_shared = (dp[0] & 0x40) ? 1 : 0;

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("IO 0x%lx 0x%lx%s\n", ecuio->ecuio_io.ecio_addr,
  		    ecuio->ecuio_io.ecio_size,
  		    ecuio->ecuio_io.ecio_shared ? " shared" : "");
 @@ -285,7 +294,7 @@
  	int i;

  	for (i = 0; i < sizeof(val); i++) {
 -		val |= (u_int)(*src << (i * 8));
 +		val |= (u_int)*src << (i * 8);
  		src += eisa_config_stride;
  	}

 @@ -314,7 +323,7 @@
  }

  void
 -eisa_init()
 +eisa_init(eisa_chipset_tag_t ec)
  {
  	struct ecu_data *ecud;
  	paddr_t cfgaddr;
 @@ -340,30 +349,36 @@
  	}

  	eisa_config_header_addr = hwrpb->rpb_condat_off;
 -#if 0
 -	printf("\nEISA config header at 0x%lx\n", eisa_config_header_addr);
 -#endif
  	if (eisa_config_stride == 0)
  		eisa_config_stride = 1;

 +#ifdef EISA_DEBUG
 +	printf("\nEISA config header at 0x%lx\n", eisa_config_header_addr);
 +	printf("EISA config at 0x%lx\n", eisa_config_addr);
 +	printf("EISA config stride: %ld\n", eisa_config_stride);
 +#endif
 +
  	/*
  	 * Read the slot headers, and allocate config structures for
  	 * valid slots.
  	 */
 -	for (cfgaddr = eisa_config_header_addr, i = 0; i < 16 /* XXX */; i++) {
 +	for (cfgaddr = eisa_config_header_addr, i = 0;
 +	    i < eisa_maxslots(ec); i++) {
  		eisa_read_config_bytes(cfgaddr, eisaid, sizeof(eisaid));
  		eisaid[EISA_IDSTRINGLEN - 1] = '\0';	/* sanity */
  		cfgaddr += sizeof(eisaid) * eisa_config_stride;
  		eisa_read_config_word(cfgaddr, &offset);
  		cfgaddr += sizeof(offset) * eisa_config_stride;

 -		if (offset != 0) {
 -#if 0
 +		if (offset != 0 || offset != 0xffffffff) {
 +#ifdef EISA_DEBUG
  			printf("SLOT %d: offset 0x%08x eisaid %s\n",
  			    i, offset, eisaid);
  #endif
 -			ecud = malloc(sizeof(*ecud), M_DEVBUF, M_WAITOK);
 -			memset(ecud, 0, sizeof(*ecud));
 +			ecud = malloc(sizeof(*ecud), M_DEVBUF, M_ZERO|M_WAITOK);
 +			if (ecud == NULL)
 +				panic("%s: can't allocate memory for ecud",
 +				    __func__);

  			SIMPLEQ_INIT(&ecud->ecud_funcs);

 @@ -378,22 +393,42 @@
  	 * Now traverse the valid slots and read the info.
  	 */

 -	cdata = malloc(512, M_TEMP, M_WAITOK);
 -	data = malloc(512, M_TEMP, M_WAITOK);
 +	cdata = malloc(CBUFSIZE, M_TEMP, M_ZERO|M_WAITOK);
 +	if (cdata == NULL)
 +		panic("%s: can't allocate memory for cdata", __func__);
 +	data = malloc(CBUFSIZE, M_TEMP, M_ZERO|M_WAITOK);
 +	if (data == NULL)
 +		panic("%s: can't allocate memory for data", __func__);

  	SIMPLEQ_FOREACH(ecud, &ecu_data_list, ecud_list) {
  		cfgaddr = eisa_config_addr + ecud->ecud_offset;
 +#ifdef EISA_DEBUG
 +		printf("Checking SLOT %d\n", ecud->ecud_slot);
 +		printf("Reading config bytes at 0x%lx to cdata[0]\n", cfgaddr);
 +#endif
  		eisa_read_config_bytes(cfgaddr, &cdata[0], 1);
  		cfgaddr += eisa_config_stride;

 -		for (i = 1; ; cfgaddr += eisa_config_stride, i++) {
 +		for (i = 1; i < CBUFSIZE; cfgaddr += eisa_config_stride, i++) {
 +#ifdef EISA_DEBUG
 +			printf("Reading config bytes at 0x%lx to cdata[%d]\n",
 +			    cfgaddr, i);
 +#endif
  			eisa_read_config_bytes(cfgaddr, &cdata[i], 1);
  			if (cdata[i - 1] == 0 && cdata[i] == 0)
  				break;
  		}
 +		if (i == CBUFSIZE) {
 +			/* assume this compressed data invalid */
 +#ifdef EISA_DEBUG
 +			printf("SLOT %d has invalid config\n", ecud->ecud_slot);
 +#endif
 +			continue;
 +		}
 +
  		i++;	/* index -> length */

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("SLOT %d compressed data length %d:",
  		    ecud->ecud_slot, i);
  		{
 @@ -413,7 +448,7 @@

  		/* Uncompress the slot header. */
  		cdp += eisa_uncompress(cdp, dp, EISA_SLOT_HEADER_SIZE);
 -#if 0
 +#ifdef EISA_DEBUG
  		printf("SLOT %d uncompressed header data:",
  		    ecud->ecud_slot);
  		{
 @@ -439,7 +474,7 @@
  		memcpy(&ecud->ecud_comp_id, dp, sizeof(ecud->ecud_comp_id));
  		dp += sizeof(ecud->ecud_comp_id);

 -#if 0
 +#ifdef EISA_DEBUG
  		printf("SLOT %d: ndevfuncs %d\n", ecud->ecud_slot,
  		    ecud->ecud_ndevfuncs);
  #endif
 @@ -447,7 +482,7 @@
  		for (func = 0; func < ecud->ecud_ndevfuncs; func++) {
  			dp = data;
  			cdp += eisa_uncompress(cdp, dp, EISA_CONFIG_BLOCK_SIZE);
 -#if 0
 +#ifdef EISA_DEBUG
  			printf("SLOT %d:%d uncompressed data:",
  			    ecud->ecud_slot, func);
  			{
 @@ -464,7 +499,7 @@

  			/* Skip disabled functions. */
  			if (dp[EISA_FUNC_INFO_OFFSET] & ECUF_DISABLED) {
 -#if 0
 +#ifdef EISA_DEBUG
  				printf("SLOT %d:%d disabled\n",
  				    ecud->ecud_slot, func);
  #endif
 @@ -472,6 +507,9 @@
  			}

  			ecuf = malloc(sizeof(*ecuf), M_DEVBUF, M_WAITOK);
 +			if (ecuf == NULL)
 +				panic("%s: can't allocate memory for ecuf",
 +				    __func__);
  			ecuf_init(ecuf);
  			ecuf->ecuf_funcno = func;
  			SIMPLEQ_INSERT_TAIL(&ecud->ecud_funcs, ecuf,
 Index: include/eisa_machdep.h
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/include/eisa_machdep.h,v
 retrieving revision 1.7
 diff -u -r1.7 eisa_machdep.h
 --- include/eisa_machdep.h	11 Aug 2000 00:43:20 -0000	1.7
 +++ include/eisa_machdep.h	20 Jul 2007 20:20:21 -0000
 @@ -78,7 +78,7 @@
   * Internal functions, NOT TO BE USED BY MACHINE-INDEPENDENT CODE!
   */

 -void	eisa_init(void);
 +void	eisa_init(eisa_chipset_tag_t);

  extern bus_size_t eisa_config_stride;
  extern paddr_t eisa_config_addr;
 Index: jensenio/jensenio.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/jensenio/jensenio.c,v
 retrieving revision 1.13
 diff -u -r1.13 jensenio.c
 --- jensenio/jensenio.c	11 Dec 2005 12:16:17 -0000	1.13
 +++ jensenio/jensenio.c	20 Jul 2007 20:20:21 -0000
 @@ -244,7 +244,7 @@
  	 */
  	eisa_config_stride = 0x200;
  	eisa_config_addr = JENSEN_FEPROM1;
 -	eisa_init();
 +	eisa_init(eba->eba_ec);
  #endif
  }

 @@ -252,7 +252,7 @@
  jensenio_eisa_maxslots(void *v)
  {

 -	return (16);	/* as good a number as any.  only 8, maybe? */
 +	return (8);	/* jensen seems to have only 8 valid slots */
  }

  void
 Index: pci/sio.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/pci/sio.c,v
 retrieving revision 1.40
 diff -u -r1.40 sio.c
 --- pci/sio.c	11 Dec 2005 12:16:17 -0000	1.40
 +++ pci/sio.c	20 Jul 2007 20:20:21 -0000
 @@ -318,7 +318,7 @@
  {

  #if NEISA > 0
 -	eisa_init();
 +	eisa_init(eba->eba_ec);
  #endif
  }

 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Sat, 21 Jul 2007 01:38:41 +0200

 Hello, thank you,

 > Thanks, it shows that reading config data region of invalid slots
 > causes the problem:
 [...]
 > Maybe we shouldn't check slots more than 8 at least on Jensen
 > (though I'm not sure how it worked in the past).

 The Jensen has got exactly 6 EISA slots and the system board, so 
 there should only the slots 0, 1, 2, 3, 4, 5, 6 being found.

 I have installed and configured 3 EISA cards in the first three 
 slots, number 4 and 5 are empty and number 6 contains an ISA network 
 card which I left unconfigured in the ECU.

 The card in slot 1, however, is found as ISA, not EISA by the SRM 
 while the real ISA card is not seen by the SRM console at all.

 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
 =3D=3D=3D=3D=3D=3D=3D=3D=3D
 EISA config header at 0x1ac061000
 EISA config at 0x1a0000000
 EISA config stride: 512
 SLOT 0: offset 0x18386800 eisaid DEC2400
 SLOT 1: offset 0x18397000 eisaid ELS8041
 SLOT 2: offset 0x183b4800 eisaid ADP0002
 SLOT 3: offset 0x183c6400 eisaid CPQ6101
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
 =3D=3D=3D=3D=3D=3D=3D=3D=3D

 I don't know much about this stuff, but I wonder if the problem is 
 really here where it "sees" the slots 8 to 15.

 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
 =3D=3D=3D=3D=3D=3D=3D=3D=3D
 SLOT 8: offset 0x00000008 eisaid =DD=DD=DD=DD=DD=DD=DD
 SLOT 9: offset 0x00009b63 eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 10: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 11: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 12: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 13: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 14: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 15: offset 0xffffffff eisaid =FF=FF=FF=FF=FF=FF=FF
 SLOT 0 compressed data length 132:
 0x01 0x00 0x01 0x01 0x00 0x01 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 
 0x20 0xbf 
 0x98 0x80 0x28 0xbf 0x98 0x80 0x11 0x01 0x27 0x55 0xa1 0x04 0x1d 0x10 
 0xa3 0x24 
 0x00 0x01 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 0x01 0x43 0x4f 0x4d 
 0x31 0x00 
 0xff 0x00 0x1a 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 0x01 0x43 0x4f 
 0x4d 0x32 
 0x00 0xff 0x00 0x1a 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 0x05 0x4c 
 0x50 0x54 
 0x31 0x00 0x8b 0x01 0x00 0x8d 0x10 0xa3 0x24 0x00 0x01 0x11 0x00 0x1d 
 0x1d 0x46 
 0x4c 0x4f 0x50 0x50 0x59 0x20 0x44 0x49 0x53 0x4b 0x20 0x43 0x4f 0x4e 
 0x54 0x52 
 0x4f 0x4c 0x4c 0x45 0x52 0x00 0x79 0x06 0x00 0x0d 0x02 0x00 0x07 0x07 
 0xf0 0x03 
 0x00 0x75 0x00 0x00 
 SLOT 0 uncompressed header data:
 0x01 0x00 0x01 0x00 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 0x20 0xbf 
 0x98 0x80 
 0x28 0xbf 0x98 0x80 0x11 0x01 0x27 0x55 0xa1 0x04 0x1d 0x10 0xa3 0x24 
 0x00 
 SLOT 0: ndevfuncs 4
 SLOT 0:0 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 SLOT 0:1 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 SLOT 0:2 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 IRQ 1 edge
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 SLOT 0:3 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 IRQ 6 edge
 Setting ecuf_dma_entry
 DRQ 2 0 0
 Setting ecuf_io_entry
 IO 0x3f0 0x8
 Setting ecuf_init_entry
 Slot 0:4 done
 SLOT 1 compressed data length 236:
 0x01 0x00 0x01 0x01 0x00 0x01 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 
 0x20 0xbf 
 0x98 0x80 0x28 0xbf 0x98 0x80 0x41 0x01 0x27 0xc4 0x9f 0x04 0x17 0x15 
 0x93 0x80 
 0x41 0x15 0x93 0x80 0x41 0x41 0x03 0x00 0x1c 0x11 0x56 0x49 0x44 0x2c 
 0x56 0x47 
 0x41 0x2c 0x56 0x49 0x44 0x2c 0x56 0x47 0x41 0x00 0x96 0x80 0x02 0x01 
 0x80 0xe8 
 0x02 0x80 0xea 0x02 0x80 0xc0 0x03 0x80 0xc1 0x03 0x80 0xc2 0x03 0x80 
 0xc4 0x03 
 0x80 0xc5 0x03 0x80 0xc6 0x03 0x80 0xc7 0x03 0x80 0xc8 0x03 0x80 0xc9 
 0x03 0x80 
 0xcc 0x03 0x80 0xce 0x03 0x00 0x01 0xcf 0x03 0x00 0x4b 0x15 0x93 0x80 
 0x41 0x41 
 0x03 0x00 0x1c 0x13 0x56 0x49 0x44 0x2c 0x56 0x47 0x41 0x3b 0x43 0x4f 
 0x4c 0x4f 
 0x52 0x00 0x43 0x99 0x0a 0x80 0x0b 0x00 0x01 0x20 0x00 0x01 0x18 0x08 
 0x00 0x01 
 0x0c 0x00 0x01 0x20 0x00 0x48 0x80 0xd4 0x03 0x80 0xd5 0x03 0x80 0xd8 
 0x03 0x80 
 0xd9 0x03 0x80 0xda 0x03 0x80 0xdb 0x03 0x00 0x01 0xdc 0x03 0x00 0x63 
 0x15 0x93 
 0x80 0x41 0x41 0x03 0x00 0x1c 0x01 0x56 0x49 0x44 0x2c 0x56 0x47 0x41 
 0x2c 0x56 
 0x49 0x44 0x2c 0x56 0x47 0x41 0x00 0xff 0x00 0x0f 0x15 0x93 0x80 0x41 
 0x41 0x03 
 0x00 0x02 0x01 0x00 0x19 0x05 0x56 0x49 0x44 0x2c 0x56 0x47 0x41 0x2c 
 0x56 0x49 
 0x44 0x2c 0x56 0x47 0x41 0x00 0x80 0x09 0x00 0x8d 0x00 0x00 
 SLOT 1 uncompressed header data:
 0x01 0x00 0x01 0x00 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 0x20 0xbf 
 0x98 0x80 
 0x28 0xbf 0x98 0x80 0x41 0x01 0x27 0xc4 0x9f 0x04 0x17 0x15 0x93 0x80 
 0x41 
 SLOT 1: ndevfuncs 4
 SLOT 1:0 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 IO 0x102 0x1
 IO 0x2e8 0x1
 IO 0x2ea 0x1
 IO 0x3c0 0x1
 IO 0x3c1 0x1
 IO 0x3c2 0x1
 IO 0x3c4 0x1
 IO 0x3c5 0x1
 IO 0x3c6 0x1
 IO 0x3c7 0x1
 IO 0x3c8 0x1
 IO 0x3c9 0x1
 IO 0x3cc 0x1
 IO 0x3ce 0x1
 IO 0x3cf 0x1
 Setting ecuf_init_entry
 SLOT 1:1 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 MEM 0xb8000 0x8000 1 2 2
 MEM 0xc0000 0x8000 0 0 2
 Setting ecuf_irq_entry
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 IO 0x3d4 0x1
 IO 0x3d5 0x1
 IO 0x3d8 0x1
 IO 0x3d9 0x1
 IO 0x3da 0x1
 IO 0x3db 0x1
 IO 0x3dc 0x1
 Setting ecuf_init_entry
 SLOT 1:2 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 SLOT 1:3 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 IRQ 9 edge
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 Slot 1:4 done
 SLOT 2 compressed data length 142:
 0x01 0x00 0x01 0x01 0x00 0x01 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 
 0x20 0xbf 
 0x98 0x80 0x28 0xbf 0x98 0x80 0x00 0x01 0x01 0x27 0xf8 0x00 0x01 0x04 
 0x27 0x04 
 0x90 0x00 0x01 0x02 0x04 0x90 0x00 0x01 0x02 0x00 0x01 0x03 0x00 0x1c 
 0x25 0x41 
 0x48 0x41 0x31 0x37 0x34 0x30 0x00 0x88 0x2b 0x00 0x51 0x80 0xc0 0x2c 
 0x80 0x80 
 0xc1 0x2c 0xc3 0x80 0xc2 0x2c 0x12 0x80 0xc3 0x2c 0x17 0x00 0x01 0xc4 
 0x2c 0x01 
 0x00 0x28 0x04 0x90 0x00 0x01 0x02 0x00 0x01 0x03 0x00 0x1c 0x03 0x41 
 0x44 0x41 
 0x50 0x54 0x45 0x52 0x3d 0x53 0x43 0x53 0x49 0x00 0x44 0x18 0x08 0xc0 
 0x0c 0x00 
 0x01 0x10 0x00 0xc7 0x04 0x90 0x00 0x01 0x02 0x00 0x01 0x03 0x00 0xff 
 0x00 0x3b 
 0x04 0x90 0x00 0x01 0x02 0x00 0x01 0x03 0x00 0xff 0x00 0x3b 0x00 0x00 

 SLOT 2 uncompressed header data:
 0x01 0x00 0x01 0x00 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 0x20 0xbf 
 0x98 0x80 
 0x28 0xbf 0x98 0x80 0x00 0x01 0x27 0xf8 0x00 0x04 0x27 0x04 0x90 0x00 
 0x02 
 SLOT 2: ndevfuncs 4
 SLOT 2:0 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 IRQ 11 level
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 SLOT 2:1 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 MEM 0xcc000 0x4000 0 0 2
 Setting ecuf_irq_entry
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 SLOT 2:2 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 SLOT 2:3 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 Slot 2:4 done
 SLOT 3 compressed data length 128:
 0x01 0x00 0x01 0x01 0x00 0x01 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 
 0x20 0xbf 
 0x98 0x80 0x28 0xbf 0x98 0x80 0x01 0x01 0x27 0x49 0xa0 0x02 0x25 0x0e 
 0x11 0x61 
 0x01 0x0e 0x11 0x61 0x01 0x01 0x01 0x00 0x04 0x04 0x00 0x01 0x02 0x02 
 0x00 0x14 
 0x25 0x4e 0x45 0x54 0x3b 0x45 0x54 0x48 0x3b 0x49 0x52 0x51 0x35 0x2c 
 0x4c 0x45 
 0x56 0x45 0x4c 0x3b 0x31 0x30 0x4d 0x42 0x50 0x53 0x3b 0x55 0x54 0x50 
 0x00 0x72 
 0x25 0x00 0x51 0x80 0x85 0x3c 0x28 0x81 0x1c 0x30 0x01 0x00 0x01 0x01 
 0x08 0x30 
 0x80 0x00 0x2f 0x0e 0x11 0x61 0x01 0x01 0x01 0x00 0x1c 0x41 0x4f 0x54 
 0x48 0x2c 
 0x52 0x45 0x56 0x50 0x4f 0x52 0x54 0x00 0x45 0x02 0x63 0x0c 0x00 0xca 
 0x00 0x00 
 SLOT 3 uncompressed header data:
 0x01 0x00 0x01 0x00 0x10 0xbf 0x98 0x80 0x18 0xbf 0x98 0x80 0x20 0xbf 
 0x98 0x80 
 0x28 0xbf 0x98 0x80 0x01 0x01 0x27 0x49 0xa0 0x02 0x25 0x0e 0x11 0x61 
 0x01 
 SLOT 3: ndevfuncs 2
 SLOT 3:0 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 IRQ 5 level
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 SLOT 3:1 uncompressed data:
 Checking this function enabled
 Calling ecuf_init; done
 Setting ecuf_id
 Setting ecuf_slot_info
 Setting ecuf_cfg_ext
 Setting ecuf_selections
 Setting ecuf_func_info
 Setting ecuf_type_string
 Setting ecuf_mem_entry
 Setting ecuf_irq_entry
 Setting ecuf_dma_entry
 Setting ecuf_io_entry
 Setting ecuf_init_entry
 Slot 3:2 done
 SLOT 8 compressed data length 48:
 0x01 0x09 0x10 0x01 0x55 0x00 0xaa 0xff 0x56 0x31 0x2e 0x31 0x20 0x20 
 0x20 0x20 
 0x44 0x45 0x43 0x20 0x20 0x20 0x20 0x20 0x4a 0x45 0x4e 0x53 0x5f 0x53 
 0x59 0x53 
 0x41 0x4c 0x50 0x48 0xff 0xff 0xff 0xff 0x17 0x01 0x01 0x00 0xc0 0x03 
 0x00 0x00 
 SLOT 8 uncompressed header data:
 0x01 0x09 0x10 0x01 0x55 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 0x00 
 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 0x00 
 SLOT 8: ndevfuncs 0
 Slot 8:0 done

 CPU 0: fatal kernel trap:

 CPU 0    trap entry =3D 0x2 (memory management fault)
 CPU 0    a0         =3D 0xfffffe0000058000
 CPU 0    a1         =3D 0x1
 CPU 0    a2         =3D 0x0
 CPU 0    pc         =3D 0xfffffc000058fa10
 CPU 0    ra         =3D 0xfffffc000059008c
 CPU 0    pv         =3D 0xfffffc00004974a0
 CPU 0    curlwp    =3D 0xfffffc0000bc3c20
 CPU 0        pid =3D 0, comm =3D swapper

 panic: trap
 Stopped in pid 0.1 (swapper) at 0xfffffc00005da244:     ret     
 zero,(ra)
 db>
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
 =3D=3D=3D=3D=3D=3D=3D=3D=3D

 Christoph Franzen

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Sun, 22 Jul 2007 08:08:14 +0900

 ChristophFranzen@gmx.net wrote:

 > The Jensen has got exactly 6 EISA slots and the system board, so 
 > there should only the slots 0, 1, 2, 3, 4, 5, 6 being found.

 Maybe EISA spec allows up to 16 slots, but I guess
 it's implementation specific how many slots should
 be probed on boot.

 Newer 20070720 image has a fix that makes eisa_init()
 check only slot 0-7. Please let me know how it works.

 > The card in slot 1, however, is found as ISA, not EISA by the SRM 
 > while the real ISA card is not seen by the SRM console at all.

 I guess this is VGA and it's handled something specially.
 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Sun, 22 Jul 2007 03:19:17 +0200

 Hello!

 > Newer 20070720 image has a fix that makes eisa_init()
 > check only slot 0-7. Please let me know how it works.

 I'm sorry, I thought the last log already was from the new version, 
 but obviously it was not successfully written to the disk, and the 
 older version survived somehow. I called "dd" via SSH on another 
 computer, I guess this failed somehow.

 > > The card in slot 1, however, is found as ISA, not EISA by the SRM
 > > while the real ISA card is not seen by the SRM console at all.
 > 
 > I guess this is VGA and it's handled something specially.

 Yes, this is the VGA, an Elsa Winner 1000 (S3 chipset). This one is 
 special, you have to select the correct file in the ECU by Hand. The 
 Jensen calls the VGA BIOS to initialise the card. In fact, this is a 
 real EISA card; as you can see below, Netbsd seems also to "think" 
 that it's ISA only. I have tried to configure the CPQ6101, but it's 
 not recognized... But that's not a real problem for now.

 Below you find the new log. This one shows apparently an error which 
 also occured in a previous version of Netbsd. It hangs forever after 
 recognising the floppy. I read old posts in the archives where 
 somebody said that removing the floppy would not work.

 ---------------------------------
 NetBSD 4.0_BETA2 (INSTALL) #9: Sat Jul 21 05:26:43 JST 2007
 	tsutsui@mirage:/r/work/src-
 4.0/src/sys/arch/alpha/compile/obj.alpha/INSTALL
 DEC2000 model 300, 150MHz, s/n 
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 21120 KB
 mainbus0 (root)
 cpu0 at mainbus0: ID 0 (primary), 21064-0
 jensenio0 at mainbus0
 pckbc0 at jensenio0 port 0x60
 pms0 at pckbc0 (aux slot)
 pckbc0: aux slot interrupting at vector 0x990
 wsmouse0 at pms0 (mux ignored)
 com0 at jensenio0 port 0x3f8: ns8250 or ns16450, no fifo
 com0: console
 com0: interrupting at vector 0x900
 com1 at jensenio0 port 0x2f8: ns8250 or ns16450, no fifo
 com1: interrupting at vector 0x920
 lpt0 at jensenio0 port 0x3bc
 lpt0: interrupting at eisa irq 1
 mcclock0 at jensenio0 port 0x170: mc146818 or compatible
 eisa0 at jensenio0
 ahb0 at eisa0 slot 2: Adaptec AHA-1742A SCSI
 ahb0: interrupting at eisa irq 12
 scsibus0 at ahb0: 8 targets, 8 luns per target
 device CPQ6101 at eisa0 slot 3 not configured
 isa0 at jensenio0
 depca: address not found
 we1 at isa0 port 0x300-0x31f iomem 0xcc000-0xcffff irq 10
 we1: WD8013EPC Ethernet (16-bit)
 we1: Ethernet address 00:00:c0:db:6c:2e
 vga0 at isa0 port 0x3b0-0x3df iomem 0xa0000-0xbffff
 wsdisplay0 at vga0 (kbdmux ignored)
 fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
 ---------------------------------

 Christoph

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Sun, 22 Jul 2007 10:53:04 +0900

 ChristophFranzen@gmx.net wrote:

 > Below you find the new log. This one shows apparently an error which 
 > also occured in a previous version of Netbsd. It hangs forever after 
 > recognising the floppy. I read old posts in the archives where 
 > somebody said that removing the floppy would not work.

 Could you get ddb(4) prompt by sending break via serial console
 at the point?

 After fdc(4), I guess mcclock at isa (which should be not matched) is
 checked, interrupts are enabled, and then fd0 at fdc0 is probed.
 ("scsibus0: waiting 2 seconds..." message should follow)

 If you can get ddb(4) prompt, I guess interrupts might be enabled
 but not served properly. We could get some info by backtrace anyway.
 If not, we should check where actually the hang occurs
 during cpu_configure(9), by sprinkling printf or so.
 ---
 Izumi Tsutsui

From: Izumi Tsutsui <tsutsui@netbsd.org>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: PR/36628 CVS commit: src/sys/arch/alpha
Date: Sun, 22 Jul 2007 02:14:40 +0000 (UTC)

 Module Name:	src
 Committed By:	tsutsui
 Date:		Sun Jul 22 02:14:40 UTC 2007

 Modified Files:
 	src/sys/arch/alpha/eisa: eisa_machdep.c
 	src/sys/arch/alpha/include: eisa_machdep.h
 	src/sys/arch/alpha/jensenio: jensenio.c
 	src/sys/arch/alpha/pci: sio.c

 Log Message:
 More fixes for Jensen, reported and tested by Christoph Franzen
 in PR port-alpha/36628:
 - make jensenio_eisa_maxslots() return 8 (instead of 16) since
   EISA config for slot 8-15 on jensen could return invalid values
 - pass eisa_chipset_tag_t to eisa_init() and check eisa_maxslots()
   on probing EISA config space
 - pass M_ZERO to malloc(9) and make sure malloc(9) doesn't fail
 - fix typo in a debug printf, add more debug printfs, and
   use #ifdef EISA_DEBUG to enable them
 - cast uint8_t value to uint32_t before shift more than 8 bits
 - check buffer region on reading compressed data from EISA config space


 To generate a diff of this commit:
 cvs rdiff -r1.5 -r1.6 src/sys/arch/alpha/eisa/eisa_machdep.c
 cvs rdiff -r1.7 -r1.8 src/sys/arch/alpha/include/eisa_machdep.h
 cvs rdiff -r1.13 -r1.14 src/sys/arch/alpha/jensenio/jensenio.c
 cvs rdiff -r1.40 -r1.41 src/sys/arch/alpha/pci/sio.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Sun, 22 Jul 2007 15:44:08 +0200

 Hello again,

 > > This one shows apparently an error which
 > > also occured in a previous version of Netbsd. It hangs forever after
 > > recognising the floppy. I read old posts in the archives where
 > > somebody said that removing the floppy would not work.

 I investigated further and finally found some hint about the same or 
 a similar issue in the archive:
 http://mail-index.netbsd.org/port-alpha/2001/01/09/0001.html

 > Could you get ddb(4) prompt by sending break via serial console
 > at the point?

 Yes, the ddb unfortunately gives no further information, though (at 
 least nothing seeming useful to me).

 > After fdc(4), I guess mcclock at isa (which should be not matched) is
 > checked, interrupts are enabled, and then fd0 at fdc0 is probed.
 > ("scsibus0: waiting 2 seconds..." message should follow)
 > 
 > If you can get ddb(4) prompt, I guess interrupts might be enabled but
 > not served properly. We could get some info by backtrace anyway. If
 > not, we should check where actually the hang occurs during
 > cpu_configure(9), by sprinkling printf or so.

 I think it would be best to try some printfs.

 -- 
 Christoph Franzen


From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Mon, 23 Jul 2007 00:27:42 +0900

 ChristophFranzen@gmx.net wrote:

 > > Could you get ddb(4) prompt by sending break via serial console
 > > at the point?
 > 
 > Yes, the ddb unfortunately gives no further information, though (at 
 > least nothing seeming useful to me).

 Maybe INSTALL kernel in cdhdtape doesn't have symbol table
 so trace command doesn't work properly.
 I've put cdhdtape image which contains GENERIC with some printfs
 (but not root md image):
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-GENERIC-20070722.gz

 If you can get ddb(4) prompt, please try
 "trace", "ps/w", "show event" and "show uvmexp" etc.
 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Sun, 22 Jul 2007 20:01:54 +0200

 Hello.

 > > > Could you get ddb(4) prompt by sending break via serial console at
 > > > the point?
 > > 
 > > Yes, the ddb unfortunately gives no further information> 
 > Maybe INSTALL kernel in cdhdtape doesn't have symbol table
 > so trace command doesn't work properly.
 > I've put cdhdtape image which contains GENERIC with some printfs

 This time "trace" works.

 There seems to be something wrong however. The ECU configuration 
 shows the SCSI adapter at IRQ 11 while Netbsd shows EISA IRQ 12. The 
 host adapter is revision E.

 --------
 NetBSD 4.0_BETA2 (GENERIC) #3: Mon Jul 23 00:13:17 JST 2007
 	tsutsui@mirage:/r/work/src-4.0/src/sys/arch/alpha/compile/GENERIC
 DEC2000 model 300, 150MHz, s/n 
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 20200 KB
 mainbus0 (root)
 cpu0 at mainbus0: ID 0 (primary), 21064-0
 jensenio0 at mainbus0
 pckbc0 at jensenio0 port 0x60
 pms0 at pckbc0 (aux slot)
 pckbc0: aux slot interrupting at vector 0x990
 wsmouse0 at pms0 mux 0
 com0 at jensenio0 port 0x3f8: ns8250 or ns16450, no fifo
 com0: console
 com0: interrupting at vector 0x900
 com1 at jensenio0 port 0x2f8: ns8250 or ns16450, no fifo
 com1: interrupting at vector 0x920
 lpt0 at jensenio0 port 0x3bc
 lpt0: interrupting at eisa irq 1
 mcclock0 at jensenio0 port 0x170: mc146818 or compatible
 eisa0 at jensenio0
 ahb0 at eisa0 slot 2: Adaptec AHA-1742A SCSI
 ahb0: interrupting at eisa irq 12
 scsibus0 at ahb0: 8 targets, 8 luns per target
 Compaq NetFlex-2 ENET-TR at eisa0 slot 3 not configured
 isa0 at jensenio0
 depca: address not found
 attimer0 at isa0 port 0x40-0x43: AT Timer
 we1 at isa0 port 0x300-0x31f iomem 0xcc000-0xcffff irq 10
 we1: WD8013EPC Ethernet (16-bit)
 we1: Ethernet address 00:00:c0:db:6c:2e
 vga0 at isa0 port 0x3b0-0x3df iomem 0xa0000-0xbffff
 wsdisplay0 at vga0 kbdmux 1
 wsmux1: connecting to wsdisplay0
 pcppi0 at isa0 port 0x61
 pcppi0: children must have an explicit unit
 midi0 at pcppi0: PC speaker (CPU-intensive output)
 spkr0 at pcppi0
 isabeep0 at pcppi0
 fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
 pcppi0: attached to attimer0
 enabling interrupts
 Stopped in pid 0.1 (swapper) at netbsd:cpu_Debugger+0x4:        ret   
   zero,(ra
 )
 db> trace
 cpu_Debugger() at netbsd:cpu_Debugger+0x4
 comintr() at netbsd:comintr+0x920
 com_jensenio_intr() at netbsd:com_jensenio_intr+0x24
 interrupt() at netbsd:interrupt+0x1f4
 XentInt() at netbsd:XentInt+0x1c
 --- interrupt (from ipl 0) ---
 spl0() at netbsd:spl0+0x30
 cpu_configure() at netbsd:cpu_configure+0x70
 configure() at netbsd:configure+0x44
 main() at netbsd:main+0x1bc
 locorestart() at netbsd:locorestart+0x64
 --- root of call graph ---
 db> ps/w
  PID          COMMAND     EMUL  PRI UTIME STIME WAIT-MSG    WAIT-
 CHANNEL
 >0            swapper   netbsd    0   0.0   0.0
 db> show event
 evcnt type 0: uvmmap ukh_alloc = 2
 evcnt type 0: uvmmap uke_free = 10
 evcnt type 0: uvmmap uke_alloc = 65
 evcnt type 0: uvmmap mlk_hint = 1
 evcnt type 0: uvmmap mlk_call = 6
 evcnt type 0: uvmmap map_call = 60
 evcnt type 0: uvmmap knomerge = 12
 evcnt type 0: uvmmap kbackmerge = 48
 evcnt type 1: cpu0 device = 6390298
 evcnt type 1: eisa irq 12 = 6390297
 evcnt type 1: vector 0x900 = 1
 db> show uvmexp
 Current UVM status:
   pagesize=8192 (0x2000), pagemask=0x1fff, pageshift=13
   2547 VM pages: 0 active, 0 inactive, 0 wired, 2418 free
   pages  0 anon, 0 file, 0 exec
   freemin=0, free-target=0, wired-max=0
   faults=0, traps=1, intrs=6390298, ctxswitch=0
   softint=0, syscalls=0, swapins=0, swapouts=0
   fault counts:
     noram=0, noanon=0, pgwait=0, pgrele=0
     ok relocks(total)=0(0), anget(retrys)=0(0), amapcopy=0
     neighbor anon/obj pg=0/0, gets(lock/unlock)=0/0
     cases: anon=0, anoncow=0, obj=0, prcopy=0, przero=0
   daemon and swap counts:
     woke=0, revs=0, scans=0, obscans=0, anscans=0
     busy=0, freed=0, reactivate=0, deactivate=0
     pageouts=0, pending=0, nswget=0
     nswapdev=0, swpgavail=0
     swpages=0, swpginuse=0, swpgonly=0, paging=0
 db> show vnode

 CPU 0: fatal kernel trap:

 CPU 0    trap entry = 0x4 (unaligned access fault)
 CPU 0    a0         = 0xfffffc00008d571c
 CPU 0    a1         = 0x29
 CPU 0    a2         = 0x13
 CPU 0    pc         = 0xfffffc000063cb60
 CPU 0    ra         = 0xfffffc000070377c
 CPU 0    pv         = 0xfffffc000063cb30
 CPU 0    curlwp    = 0xfffffc0000bdd528
 CPU 0        pid = 0, comm = swapper

 Caught exception in ddb.
 panic: longjmp botch from 0xfffffc0000412320
 Stopped in pid 0.1 (swapper) at 0x20:
 CPU 0: fatal kernel trap:
 [...] repeatedly, so I interrupted that.
 ------------

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Mon, 23 Jul 2007 20:16:22 +0900

 ChristophFranzen@gmx.net wrote:

 > There seems to be something wrong however. The ECU configuration 
 > shows the SCSI adapter at IRQ 11 while Netbsd shows EISA IRQ 12. The 
 > host adapter is revision E.

 Hmm. According to src/sys/dev/eisa/ahb.c, the irq setting
 is stored in AHA-1742 INTDEF register so the ECU should
 set up the card properly but somehow it doesn't.
 Does the card work on other OSes (DIGITAL UNIX or Linux)?

 One concern is that the EISA config file provided by DEC
 doesn't have "CHOICE" section for IRQ levels while
 the Adaptec one for x86 has it:
 ftp://ftp.digital.com/pub/DEC/Alpha/firmware/archive/ecu/ntecuv111a.zip
 http://www.adaptec.com/en-US/speed/eprom_bios/aswc174_exe.htm

 What "CHOICE" items are shown on the ECU menu for AHA-1742A?
 If there is no IRQ "CHOICE", what happens if you choose
 "BIOS Base Address E8000H" one?
 (it seems to set the ahb INTDEF register irq 11 LEVEL)

 > db> trace
 > cpu_Debugger() at netbsd:cpu_Debugger+0x4
 > comintr() at netbsd:comintr+0x920
 > com_jensenio_intr() at netbsd:com_jensenio_intr+0x24
 > interrupt() at netbsd:interrupt+0x1f4
 > XentInt() at netbsd:XentInt+0x1c
 > --- interrupt (from ipl 0) ---
 > spl0() at netbsd:spl0+0x30
 > cpu_configure() at netbsd:cpu_configure+0x70
 > configure() at netbsd:configure+0x44
 > main() at netbsd:main+0x1bc
 > locorestart() at netbsd:locorestart+0x64
 > --- root of call graph ---
  :
 > db> show event
 > evcnt type 1: cpu0 device = 6390298
 > evcnt type 1: eisa irq 12 = 6390297
 > evcnt type 1: vector 0x900 = 1

 This indicates that the problem is unhandled interrupt
 storm from eisa irq 12.
 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Mon, 23 Jul 2007 16:18:04 +0200

 > > There seems to be something wrong however. The ECU configuration
 > > shows the SCSI adapter at IRQ 11 while Netbsd shows EISA IRQ 12.

 > Hmm. According to src/sys/dev/eisa/ahb.c, the irq setting
 > is stored in AHA-1742 INTDEF register so the ECU should
 > set up the card properly but somehow it doesn't.

 This is weird. My logs from the July 19th and previous versions of 
 cdhdtape show the correct IRQ 11. The next version (the one with max. 
 8 instead of 16 slots), however, shows IRQ 12.

 *After* that I've run the ECU (V.1.10 vor SRM) again and configured 
 the ISA card in the 6th slot according to its jumper settings, just 
 to be sure that there is no conflict. The GENERIC version which I 
 installed afterwards also misses the IRQ.

 > Does the card work on other OSes (DIGITAL UNIX or Linux)?

 I did not try THIS particular card, but I've got three almost 
 identical Jensen machines, and I checked the host adapter "MCODE" 
 revisions, they are all "E". The other two machines run well with 
 Windows NT up to 4.0 and Linux. Linux even did not complain when the 
 machine's ARC consol "thought" that the ECU should be run again due 
 to an empty battery, it booted nonetheless.

 > One concern is that the EISA config file provided by DEC
 > doesn't have "CHOICE" section for IRQ levels while
 > the Adaptec one for x86 has it:
 > ftp://ftp.digital.com/pub/DEC/Alpha/firmware/archive/ecu/ntecuv111a.zip
 > http://www.adaptec.com/en-US/speed/eprom_bios/aswc174_exe.htm

 If I recall correctly, the Adaptec Version needs an x86 specific 
 overlay and is therefore unusable on an Alpha.

 Thank you for pointing me to the file "ntecuv111a.zip". This is 
 apparetly the most recent ECU version available (more recent than my 
 ones here). While this ECU should work, it is not intended for the 
 SRM console (OSF1/Digital Unix and VMS), but for ARC (Windows NT). 
 There seem to be differences according to the file I attached below 
 (which nowadays appears to be available from the Google cache only). 
 The VMS/Unix version is "ecuopenvmv111a.zip" in the same directory of 
 the FTP server. Generally, you *can* use both ECU versions from the 
 SRM as well as from the ARC console, NT and Linux did never complain.

 > What "CHOICE" items are shown on the ECU menu for AHA-1742A?
 > If there is no IRQ "CHOICE", what happens if you choose
 > "BIOS Base Address E8000H" one?
 > (it seems to set the ahb INTDEF register irq 11 LEVEL)

 The ECU does not allow to choose the interrupt directly, but while 
 the appropriate item is highlighted, you can enter an "advanced" 
 window where you can change this setting. There it showed 11 when I 
 have run the ECU again, also in the window where you can watch all 
 used resources, 11 was displayed for this slot, 12 was shown as a 
 free resource.

 I will reconfigure the box with the "new" ECU version 1.11a for 
 VMS/Unix and investigate further.

 Perhaps I'll also swap the controllers of my Jensens just to be sure 
 that this one is not defective.

 There are also rumours that the "MCODE revision E" is buggy, but 
 almost all x86 EISA machines as well as the NT Alpha machines sold in 
 Germany used this without a problem, and I never had any difficulties 
 using these with Linux or NT.

 The following file has some information (I hope it "survives"):

 <<< SSAG::DISK$ARCH2:[NOTES$LIBRARY.SSAG]ASK_SSAG.NOTE;7 >>>
                     -< Ask the Storage Architecture Group >-
 ======================================================================
 ==========
 Note 5599.1                   DEC 2000-500 PROBLEM                    
     1 of 1
 BLOFLY::SMITHP "Beware the knights who say "NT"..." 244 lines  30-MAY-
 1996 03:00
                               -< information... >-
 ----------------------------------------------------------------------
 ----------
     I have attached a v.old Jensen/Culzean support note.  Looks like 
 you
     MUST disable floppy controller and MUST NOT remove the on-board
     termination resistors from the 2nd 1742A.


     Hope this helps.

     Cheers, P.


 Here are some useful snippets of poorly documented or hard-to-find 
 Jensen /
 DECpc AXP 150 / DEC 2000-300 and Culzean / DEC 2000-500 info:

  - There are some good notes file containing general Jensen/Culzean 
 and OS
    specific info - AYJEN1::JENSEN, EVMS::JENSEN_VMS and DECWET::NTAXP

  - The VMS/OSF and NT ECU (EISA Configuration Utility) are almost, 
 but NOT, the
    same.  The main difference is in how multiple SCSI adaptors are 
 configured. 
    While VMS can auto-configure the standard devices (i.e. 
 motherboard resident
    plus one SCSI and one Ethernet adaptor) even if the ECU hasn't 
 been run, the
    VMS specific ECU must be used if duplicate adaptors or a graphics 
 card is 
    present.
    NOTE: It is usually possible to run Windows NT perfectly well 
 using the
          VMS/OSF ECU, although not vice versa.

  - Upgrading or reloading the console firmware causes all boot setup 
 entries
    and environment variables to be lost.  The customers must write 
 down all 
    the settings before up/downgrading so they can be re-entered by 
 hand - if
    they don't, they won't be able to reboot afterwards.
    Alternatively, there are a pair of DEC supplied (sometimes!) 
 utilities named
    SAVEENV.EXE and RESTENV.EXE that can be run from a floppy using 
 the console
    NT menu, and which will save and restore the NT environment part 
 of the 
    NVRAM to and from the file FWENV.SAV on a floppy.  These utilities 
 can be
    found on node RIPPER:: in the SYS$KITS:[AXP_FIRMWARE.JENSEN] 
 directory.
    NOTE: Unless you do the "Set default environment variables" and 
 "Set default
          configuration" items in the "Set up the system..." menu 
 before you
          run RESTENV, the environment variable for drive A: won't be 
 defined
          and you will have to run RESTENV as 
 eisa(0)disk(0)fdisk(0)RESTENV.EXE
          instead of A:RESTENV.EXE.

  - The algorithms that VMS & the Jensen/Culzean console firmware use 
 to assign 
    "controller letters" to adaptor cards when more than one of a 
 particular
    type is present are NOT the same.  Unless care is taken when 
 installing 
    cards, VMS and the >>> console will have different names for the 
 same
    device.  See EVMS::JENSEN_VMS note 55.8 for details on how to 
 avoid this.

  - Part number PCTAZ-AB (Adaptec 1740A SCSI adapter) is no longer 
 valid for
    ordering as an additional SCSI adapter on the Jensen / Culzean.  
 It never
    had the correct firmware version for these systems and is now no 
 longer
    even available - all orders for the PCTAZ-AB are currently being 
 fulfilled 
    with a PCTAZ-CB (Adaptec 2740).  The PCTAZ-CB is *not* supported 
 by VMS,
    OSF/1 or the firmware (although it can be made to work under 
 Windows NT
    with a lot of fiddling).  To obtain an additional SCSI adapter you 
 should
    now order a PB2HA-SA (Adaptec 1742A) and disable its floppy 
 controller.
    NOTE: The installation instructions currently tell you to remove 
 the 
          on-board SCSI terminator packs on all additional SCSI 
 adapters.
          This is WRONG and should never be done!

  - To connect an external SCSI device to the first Adaptec 1742A SCSI 
 adapter
    (i.e. the one controlling the internal SCSI devices) in a 
 Jensen/Culzean
    the three on-board terminator resistor packs on the SCSI adaptor 
 MUST be
    removed.  However, this should *not* be done on any additional 
 1740A or
    1742A SCSI adapters.
    Once the terminators are removed an external device or a 
 terminator plug
    must always be plugged into the external connector on the 1742A.

  - The correct external SCSI terminator for the 174xA's is the 12-
 35759-01 (as
    originally used on the DECpc 433W) or the 12-37791-01 (used on the 
 the DECpc
    425ST).  The electrically identical 12-33626-01 / H8578-AA used on 
 the
    DECstation 5000-25 will NOT physically fit.

  - There have been multiple revisions of the MCODE firmware on the 
 Adaptec
    174xA SCSI controllers that are used in the Jensen and Culzean 
 platforms.
    The following should help you know what revision you need and how 
 to
    identify what you have:
    OSF/1 V1.3B will refuse to use any 174xA that doesn't contain rev 
 G.2 or
    higher MCODE, and VMS V1.5-1H1 will do the same unless it sees rev 
 G.1 or
    higher.  Windows NT (both Beta and SSB) will work with any rev, 
 but will
    work more reliably with the latest MCODE.
    To identify the MCODE rev on a 174xA either do a ">>> SHOW DEVICE" 
 in
    VMS/OSF console mode, or look at the checksum on the 174xA MCODE 
 EPROM.
    (The EPROM will be marked "MCODE xxxx", where xxxx is the 
 checksum.)

    MCODE rev   Checksum    Comment
    ---------   --------    -------
       G.2        BCE3      Minimum rev for OSF/1 V1.3B and above
       G.1        C3DD      Minimum rev for OpenVMS AXP V1.5-1H1 and 
 above
       G          B646      Shipped in DECpc AXP 150 "developer 
 specials"
       F          B6CF      Rare, mostly seen in prototype machines
       E          B7D6      "Generic" 174xA's have rev E MCODE

    A pre-programmed rev G.2 EPROM can be ordered as part number 23-
 681E6-00.

    N.B.: Revisions F, G, G.1 and G.2 were special releases of 
 firmware
          provided to Digital by Adaptec to fix bugs found by VMS and 
 OSF/1
          engineering, and are only found in 174xA's sold by DEC 
 specifically
          for the Jensen/Culzean.  They aren't shipping with "generic" 
 Adaptec
          174xA's and possibly never will.  The highest MCODE revision 
 Adaptec
          has released on generic 174xA's is rev E.
          There is currently no such thing as rev H MCODE - the 
 message
          demanding rev H that the OSF/1 install process displays when 
 it 
          encounters old MCODE is in error.  The correct rev for OSF/1 
 is G.2
          (or higher).  Also, the revision (usually H) reported when 
 booting an
          Intel-based PC with the 174xA's BIOS enabled is the BIOS 
 revision,
          not the MCODE revision.  The 174xA BIOS is not used at all 
 on AXP PCs.

  - The 174xA's are FAST-SCSI (10MB/sec) capable and if there are any 
 FAST-SCSI
    devices (e.g. an RZ26) the maximum total effective cable length is 
 3 metres.
    The first 1742A already has 1 metre of internal cable, so its 
 external max 
    would be 2M.  As an example, the BA350 Storageworks box is 
 equivalent to 0.9
    metres of cable so the maximum supported connecting cable length 
 would be 
    1M unless you used DWZZA repeaters.  I've seen lightly loaded 
 BA350's with
    one or two RZ26's work fine with a 2M cable off the 1742A, but I 
 wouldn't
    want to try it with a fully populated BA350.

  - The correct SCSI cable (50-pin micro Honda -> 50 pin CHAMP-
 Centronics) for
    connecting the 174xA to a TK50 (or similar device with the old-
 style large 
    SCSI connectors) is a BC09D-xx (e.g. 3 foot is BC09D-03 and 6 foot 
 is -06).

  - To temporarily enable the alternate console port (serial port 1) 
 just 
    disconnect the keyboard cable before powering up the system, or 
 you can
    SET CONSOLE SERIAL at the >>> prompt for a more lasting effect.  
 (>>> SET
    CONSOLE VGA goes back to the graphic console.)  The default setup 
 is 9600
    baud, 8 bits, no parity, one stop bit.  The console terminal must 
 be set
    to send 8 bit control sequences for the arrow keys to work 
 properly in 
    console mode.  The correct serial port to DECconnect adapter plug 
 is the
    H8571-J.
    NOTE: When using the serial port console there is NO WAY to 
 prevent
          CTRL-P and BREAK from halting the system - they are always 
 enabled!

  - The only graphics card currently supported by VMS V1.5-1H1 and 
 OSF/1 V1.3B
    is the Compaq Qvision 1024E.  Windows NT also supports the #9 GXE 
 card, but
    there are NO plans to support this card under VMS or OSF!  The 
 next (Jensen
    and Culzean) graphics support planned for VMS/OSF is for the ATI 
 Mach-32
    Ultra Pro and for low-end standard VGA.

  - When using the Qvision graphics card under VMS the SYSGEN 
 parameter
    VIRTUALPAGECNT must be set to at least 400,000 to allow the X 
 server to
    map the frame buffer, otherwise it fails with a %SYSTEM-F-VASFULL 
 error.

  - VMS accesses the console, keyboard, mouse and serial ports via 
 console 
    firmware routines and they are thus all OPAx devices - the 
 numbering is as
    follows:
 	OPA0:	Serial port 1 when using the alternate console
 		    OR 
 		Graphics head operator window when using the graphics console.
 	OPA1:	*Serial port 2
 	OPA2:	The PC keyboard port
 	OPA3:	The mouse
 	OPA4:	*Serial port 1 when using the graphics console

     *Note:  As of console firmware V1.2, the built-in serial ports 
 (OPA1: and
             OPA4:) still don't work when using the graphics console.  
 As a 
             work-around you can install a PC4XD-AA serial/parallel 
 card; see
             JENSEN_VMS note 61.10

  - Other Jensen & Culzean specific VMS device names are as follows:
 	DVA0:	The RX26 2.88MB floppy drive
 		(HINT: Use "$ INIT/DENS=xx DVA0: <label>" to format floppies,
 		       where xx = ED for 2.88MB, HD for 1.44MB, or DD for 720K)
 	LRA0:	The parallel printer port
 	GQA0:	The Compaq Qvision 1024E card
 	ERA0:	The DE422 Ethernet card

  - The V1.2 firmware for the Jensen still has the following 
 shortcomings when
    running VMS:
       > Support for the 2 serial ports (as OPA4 & OPA1) doesn't work 
 yet when
 	the graphics card is used as the console (fixed in V1.3).
       > Poor mouse performance under VMS (firmware not buffering 
 mouse data -
 	fixed in V1.3).  OSF and Windows NT don't use the firmware routines
         for mouse access and don't have this problem.
       > No boot support for the floppy from the VMS/OSF >>> prompt, 
 and none
 	is planned as far as I know.  However, V1.2 does add a >>> RUNECU
 	command to allow the ECU utility to be run from floppy under the 
 	VMS/OSF console.

  - The V1.5-1H1 parallel port driver for the Jensen doesn't work with 
 some DEC
    and foreign printers, e.g. the DECwriter 95 - see JENSEN_VMS note 
 61.10 for
    details.  To be fixed in a later release of the LRDRIVER.

  - The Jensen / Culzean systems are currently supplied with PC7XL-AA 
 or 
    PCXAL-AA keyboards, which have the enhanced PC-AT style 101 key 
 layout and
    keys.  The key combinations required to simulate the extra keys 
 present on
    a DEC standard keyboard are documented on pages 1-3 & 1-4 of the 
 OpenVMS 
    AXP Version 1.5-1H1 Release Notes and Update Procedures (AV-Q1CRA-
 TE).
    NOTE: As of V1.2 of the firmware, the console commands to set up 
 for
          keyboards with anything other than US or UK key layouts 
 (e.g.,
          >>> SET KEYBOARD SUISSE) don't do anything.  This will be 
 fixed
          in V1.3 of the firmware.

  - The LK450 keyboard (a PC-interface keyboard with the DEC standard 
 LK401 key
    layout and function keys which is ideal for use with VMS or OSF/1 
 by people
    used to DEC keyboards) is not supported by the SSB version of VMS 
 V1.5-1H1,
    but updated drivers (SYS$IKBDRIVER.EXE and SYS$INBDRIVER.EXE) can 
 be copied
    from BULOVA::ALPHA$KITS:[V15_SSB.UPDATE.V15_1H1] and then placed 
 in the
    SYS$LOADABLE_IMAGES: directory.

  - The Jensen/Culzean console has no provision for either low- or 
 high-level
    formatting of system disks.  The Windows NT installation utility 
 requires
    that the hard disk already have a valid PC-style partition table, 
 but it
    doesn't tell you how to create one and the method isn't documented 
 anywhere!
    ARCINST.EXE is the Microsoft utility which allows you to create 
 the
    partition table and Windows NT system partition on a Jensen disk 
 drive, and
    it can be found in the \alpha directory on the AXP Windows NT 
 distribution
    CDROM.
    To partition a disk and/or configure an NT system partition:

         1. Select 'Run a Program from the Boot Menu
         2. Run the ARCINST.EXE program which is contained on the 
 normal
            Windows NT distribution CD
                 Program to Run : cd:\alpha\arcinst.exe
         3. Select 'Configure Partitions'
            NOTE: If at any stage you make a mistake you can press the 
 ESC key
                  to abort and return to the previous menu level.
         4. If you know that there are no existing partitions on the 
 disk you
            wish to configure, go to step 5.  Otherwise do the 
 following to
            display the existing partitions and, if necessary, delete 
 some or
            all of them. Select 'Delete Partition'.  If you have more 
 than one
            disk drive highlight the drive that you wish to configure 
 and press
            Enter. Take great care to select the correct drive as the 
 naming
            convention that ARCINST uses differs from that used by the 
 firmware
            console. The list of partitions on the disk will be 
 displayed.  If
            you wish to delete a partition select it and press Enter; 
 otherwise
            press ESC. Repeat step 4 until all unwanted partitions are 
 removed.
            NOTE: Only FAT-format partitions of 4MBytes or more may be 
 used as
                  system partitions.
         5. Select 'Create Partition'.  If you have more than one 
 drive,
            highlight the one that will contain the partition and 
 press Enter.
            Take care to select the correct drive as the naming 
 convention
            that ARCINST uses differs from that used by the firmware 
 console.
            Type in the size of the partition (the system partition 
 must be at
            least 4 MBytes) and press Enter to create it, followed by 
 any key
            to format it.

         During the Windows NT installation the loader file 
 OSLOADER.EXE will 
         be installed within the system partition.  If you wish, you 
 can use
         ARCINST.EXE to create a further partition (by carrying out 
 steps 4 
         and 5 again) which will hold all of the operating system 
 files (this
         partition should be at least 130 MBytes in size).  If you 
 don't create
         this partition now you will be able to create one during the 
 Windows 
         NT installation process, but you will have to accept the 
 default size
         (which is all of the remaining disk space).

         6. Exit the ARCINST.EXE program back to the Boot Menu.

 -- 
 Christoph

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Tue, 24 Jul 2007 01:01:22 +0900

 ChristophFranzen@gmx.net wrote:

 > > Hmm. According to src/sys/dev/eisa/ahb.c, the irq setting
 > > is stored in AHA-1742 INTDEF register so the ECU should
 > > set up the card properly but somehow it doesn't.
 > 
 > This is weird. My logs from the July 19th and previous versions of 
 > cdhdtape show the correct IRQ 11. The next version (the one with max. 
 > 8 instead of 16 slots), however, shows IRQ 12.

 "IRQ 11 level" is a value read from the EISA configuration space
 in sys/arch/alpha/eisa/eisa_machdep.c:eisa_parse_irq() called from
 eisa_init().

 "ahb0: interrupting at eisa irq 12" is a value read from
 the INTDEF register on AHA-1742 in sys/dev/eisa/ahb.c:ahb_find()
 called from ahbattach().

 Then I thought the ECU didn't set ahb's register, but
 maybe other OSes always prefer the ECU's value, I guess.
 (though I'm not sure if it could be a problem if there is no IRQ conflict)

 I've written a quick patch which makes ahb use the ECU irq value
 if it's different from card setting. Could you try this one?
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-GENERIC-20070723.gz

 ---
 Index: sys/dev/eisa/ahb.c
 ===================================================================
 RCS file: /cvsroot/src/sys/dev/eisa/ahb.c,v
 retrieving revision 1.47
 diff -u -r1.47 ahb.c
 --- sys/dev/eisa/ahb.c	16 Nov 2006 01:32:50 -0000	1.47
 +++ sys/dev/eisa/ahb.c	23 Jul 2007 15:37:03 -0000
 @@ -201,6 +201,8 @@
  	struct ahb_probe_data apd;
  	struct scsipi_adapter *adapt = &sc->sc_adapter;
  	struct scsipi_channel *chan = &sc->sc_channel;
 +	struct eisa_cfg_irq eci;
 +	uint8_t intdef;

  	if (!strcmp(ea->ea_idstring, "ADP0000"))
  		model = EISA_PRODUCT_ADP0000;
 @@ -254,6 +256,46 @@
  		return;
  	}

 +	/*
 +	 * On some alpha machines (Jensen), ECU doesn't set
 +	 * INTDEF register properly, so check the ECU irq value
 +	 * if it's available and override the card setting with it.
 +	 */
 +	if (eisa_conf_read_irq(ea->ea_ec, ea->ea_slot, 0, 0, &eci) == 0) {
 +		if (apd.sc_irq != eci.eci_irq) {
 +			printf("%s: INTDEF configured to use irq %d, "
 +			    "but ECU configured to use irq %d\n",
 +			     sc->sc_dev.dv_xname, apd.sc_irq, eci.eci_irq);
 +			apd.sc_irq = eci.eci_irq;
 +			intdef = bus_space_read_1(iot, ioh, INTDEF);
 +			intdef &= ~(INTMASK | INTHIGH);
 +			switch (apd.sc_irq) {
 +			case  9:
 +				intdef |= INT9;
 +				break;
 +			case 10:
 +				intdef |= INT10;
 +				break;
 +			case 11:
 +				intdef |= INT11;
 +				break;
 +			case 12:
 +				intdef |= INT12;
 +				break;
 +			case 14:
 +				intdef |= INT14;
 +				break;
 +			case 15:
 +				intdef |= INT15;
 +				break;
 +			}
 +			if (eci.eci_ist == IST_LEVEL)
 +				intdef |= INTHIGH;
 +
 +			bus_space_write_1(iot, ioh, INTDEF, (intdef | INTEN));
 +		}
 +	}
 +
  	if (eisa_intr_map(ec, apd.sc_irq, &ih)) {
  		printf("%s: couldn't map interrupt (%d)\n",
  		    sc->sc_dev.dv_xname, apd.sc_irq);
 Index: sys/dev/eisa/ahbreg.h
 ===================================================================
 RCS file: /cvsroot/src/sys/dev/eisa/ahbreg.h,v
 retrieving revision 1.15
 diff -u -r1.15 ahbreg.h
 --- sys/dev/eisa/ahbreg.h	11 Dec 2005 12:21:20 -0000	1.15
 +++ sys/dev/eisa/ahbreg.h	23 Jul 2007 15:37:03 -0000
 @@ -77,6 +77,7 @@
  #define	INT12	0x03
  #define	INT14	0x05
  #define	INT15	0x06
 +#define	INTMASK	0x07
  #define INTHIGH 0x08		/* int high=ACTIVE (else edge) */
  #define	INTEN	0x10
  /**** bit definitions for SCSIDEF ****/

 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Tue, 24 Jul 2007 23:45:04 +0200

 > Then I thought the ECU didn't set ahb's register, but
 > maybe other OSes always prefer the ECU's value, I guess.
 > (though I'm not sure if it could be a problem if there is no IRQ
 > conflict)

 I tried to resolve the conflict by setting the IRQ to 12 in the ECU. 
 This did not help (not with the old and new GENERIC version).

 > I've written a quick patch which makes ahb use the ECU irq value
 > if it's different from card setting. Could you try this one?

 This doesn't work either:
 -----------------------------
 NetBSD 4.0_BETA2 (GENERIC) #4: Tue Jul 24 00:35:42 JST 2007
 	tsutsui@mirage:/r/work/src-4.0/src/sys/arch/alpha/compile/GENERIC
 DEC2000 model 300, 150MHz, s/n 
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 20200 KB
 mainbus0 (root)
 cpu0 at mainbus0: ID 0 (primary), 21064-0
 jensenio0 at mainbus0
 pckbc0 at jensenio0 port 0x60
 pms0 at pckbc0 (aux slot)
 pckbc0: aux slot interrupting at vector 0x990
 wsmouse0 at pms0 mux 0
 com0 at jensenio0 port 0x3f8: ns8250 or ns16450, no fifo
 com0: console
 com0: interrupting at vector 0x900
 com1 at jensenio0 port 0x2f8: ns8250 or ns16450, no fifo
 com1: interrupting at vector 0x920
 lpt0 at jensenio0 port 0x3bc
 lpt0: interrupting at eisa irq 1
 mcclock0 at jensenio0 port 0x170: mc146818 or compatible
 eisa0 at jensenio0
 ahb0 at eisa0 slot 2: Adaptec AHA-1742A SCSI
 panic: jensenio_eisa_intr_map: bogus IRQ 9114572
 Stopped in pid 0.1 (swapper) at netbsd:cpu_Debugger+0x4:        ret   
   zero,(ra
 )
 db> trace
 cpu_Debugger() at netbsd:cpu_Debugger+0x4
 panic() at netbsd:panic+0x1e8
 jensenio_eisa_intr_map() at netbsd:jensenio_eisa_intr_map+0xb4
 ahbattach() at netbsd:ahbattach+0x69c
 config_attach_loc() at netbsd:config_attach_loc+0x420
 eisaattach() at netbsd:eisaattach+0x2a4
 config_attach_loc() at netbsd:config_attach_loc+0x420
 jensenio_attach() at netbsd:jensenio_attach+0x178
 config_attach_loc() at netbsd:config_attach_loc+0x420
 mbattach() at netbsd:mbattach+0x168
 config_attach_loc() at netbsd:config_attach_loc+0x420
 cpu_configure() at netbsd:cpu_configure+0x44
 configure() at netbsd:configure+0x44
 main() at netbsd:main+0x1bc
 locorestart() at netbsd:locorestart+0x64
 --- root of call graph ---
 db> ps/w
  PID          COMMAND     EMUL  PRI UTIME STIME WAIT-MSG    WAIT-
 CHANNEL
 >0            swapper   netbsd    0   0.0   0.0
 db> show event
 evcnt type 0: uvmmap ukh_alloc = 2
 evcnt type 0: uvmmap uke_free = 10
 evcnt type 0: uvmmap uke_alloc = 64
 evcnt type 0: uvmmap mlk_hint = 1
 evcnt type 0: uvmmap mlk_call = 6
 evcnt type 0: uvmmap map_call = 59
 evcnt type 0: uvmmap knomerge = 12
 evcnt type 0: uvmmap kbackmerge = 47
 db> show uvmexp
 Current UVM status:
   pagesize=8192 (0x2000), pagemask=0x1fff, pageshift=13
   2547 VM pages: 0 active, 0 inactive, 0 wired, 2428 free
   pages  0 anon, 0 file, 0 exec
   freemin=0, free-target=0, wired-max=0
   faults=0, traps=1, intrs=0, ctxswitch=0
   softint=0, syscalls=0, swapins=0, swapouts=0
   fault counts:
     noram=0, noanon=0, pgwait=0, pgrele=0
     ok relocks(total)=0(0), anget(retrys)=0(0), amapcopy=0
     neighbor anon/obj pg=0/0, gets(lock/unlock)=0/0
     cases: anon=0, anoncow=0, obj=0, prcopy=0, przero=0
   daemon and swap counts:
     woke=0, revs=0, scans=0, obscans=0, anscans=0
     busy=0, freed=0, reactivate=0, deactivate=0
     pageouts=0, pending=0, nswget=0
     nswapdev=0, swpgavail=0
     swpages=0, swpginuse=0, swpgonly=0, paging=0
 db> 
 -- 
 Christoph


From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Thu, 26 Jul 2007 23:31:14 +0900

 ChristophFranzen@gmx.net wrote:

 > ahb0 at eisa0 slot 2: Adaptec AHA-1742A SCSI
 > panic: jensenio_eisa_intr_map: bogus IRQ 9114572

 Umm. sys/arch/alpha/jensenio/jensenio_intr.c:jensenio_eisa_intr_map()
 seems to check a wrong (uninitialized) arg. (How did it work before!?)

 Please try again:
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-GENERIC-20070726.gz


 Index: jensenio/jensenio_intr.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/jensenio/jensenio_intr.c,v
 retrieving revision 1.5
 diff -u -r1.5 jensenio_intr.c
 --- jensenio/jensenio_intr.c	24 Dec 2005 20:06:46 -0000	1.5
 +++ jensenio/jensenio_intr.c	26 Jul 2007 14:12:38 -0000
 @@ -167,12 +167,14 @@
  jensenio_eisa_intr_map(void *v, u_int eirq, eisa_intr_handle_t *ihp)
  {

 -	if (*ihp >= JENSEN_MAX_IRQ)
 -		panic("jensenio_eisa_intr_map: bogus IRQ %d", *ihp);
 +	if (eirq >= JENSEN_MAX_IRQ) {
 +		printf("%s: bogus IRQ %d\n", __func__, eirq);
 +		*ihp = -1;
 +		return (1);
 +	}

  	if (jensenio_intr_deftype[eirq] == IST_UNUSABLE) {
 -		printf("jensenio_eisa_intr_map: unusable irq %d\n",
 -		    eirq);
 +		printf("%s: unusable irq %d\n", __func__, eirq);
  		*ihp = -1;
  		return (1);
  	}


 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Thu, 26 Jul 2007 19:54:06 +0200

 Hello,

 the ahb0 interrupt seems OK (the INTDEF and ECU values are both 12), 
 but it still hangs at "enabling interrupts", the "evcnt" number is 
 still large.

 -----------------------
 NetBSD 4.0_BETA2 (GENERIC) #6: Thu Jul 26 23:29:20 JST 2007
 	tsutsui@mirage:/r/work/src-4.0/src/sys/arch/alpha/compile/GENERIC
 DEC2000 model 300, 150MHz, s/n 
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 20200 KB
 mainbus0 (root)
 cpu0 at mainbus0: ID 0 (primary), 21064-0
 jensenio0 at mainbus0
 pckbc0 at jensenio0 port 0x60
 pms0 at pckbc0 (aux slot)
 pckbc0: aux slot interrupting at vector 0x990
 wsmouse0 at pms0 mux 0
 com0 at jensenio0 port 0x3f8: ns8250 or ns16450, no fifo
 com0: console
 com0: interrupting at vector 0x900
 com1 at jensenio0 port 0x2f8: ns8250 or ns16450, no fifo
 com1: interrupting at vector 0x920
 lpt0 at jensenio0 port 0x3bc
 lpt0: interrupting at eisa irq 1
 mcclock0 at jensenio0 port 0x170: mc146818 or compatible
 eisa0 at jensenio0
 ahb0 at eisa0 slot 2: Adaptec AHA-1742A SCSI
 ahb0: INTDEF configured to use irq 12, ECU configured to use irq 12
 ahb0: interrupting at eisa irq 12
 scsibus0 at ahb0: 8 targets, 8 luns per target
 Compaq NetFlex-2 ENET-TR at eisa0 slot 3 not configured
 isa0 at jensenio0
 depca: address not found
 attimer0 at isa0 port 0x40-0x43: AT Timer
 we1 at isa0 port 0x300-0x31f iomem 0xcc000-0xcffff irq 10
 we1: WD8013EPC Ethernet (16-bit)
 we1: Ethernet address 00:00:c0:db:6c:2e
 vga0 at isa0 port 0x3b0-0x3df iomem 0xa0000-0xbffff
 wsdisplay0 at vga0 kbdmux 1
 wsmux1: connecting to wsdisplay0
 pcppi0 at isa0 port 0x61
 pcppi0: children must have an explicit unit
 midi0 at pcppi0: PC speaker (CPU-intensive output)
 spkr0 at pcppi0
 isabeep0 at pcppi0
 fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
 pcppi0: attached to attimer0
 enabling interrupts
 Stopped in pid 0.1 (swapper) at netbsd:cpu_Debugger+0x4:        ret   
   zero,(ra
 )
 db> trace
 cpu_Debugger() at netbsd:cpu_Debugger+0x4
 comintr() at netbsd:comintr+0x920
 com_jensenio_intr() at netbsd:com_jensenio_intr+0x24
 interrupt() at netbsd:interrupt+0x1f4
 XentInt() at netbsd:XentInt+0x1c
 --- interrupt (from ipl 0) ---
 spl0() at netbsd:spl0+0x30
 cpu_configure() at netbsd:cpu_configure+0x70
 configure() at netbsd:configure+0x44
 main() at netbsd:main+0x1bc
 locorestart() at netbsd:locorestart+0x64
 --- root of call graph ---
 db> show event
 evcnt type 0: uvmmap ukh_alloc = 2
 evcnt type 0: uvmmap uke_free = 10
 evcnt type 0: uvmmap uke_alloc = 65
 evcnt type 0: uvmmap mlk_hint = 1
 evcnt type 0: uvmmap mlk_call = 6
 evcnt type 0: uvmmap map_call = 60
 evcnt type 0: uvmmap knomerge = 12
 evcnt type 0: uvmmap kbackmerge = 48
 evcnt type 1: cpu0 device = 10602292
 evcnt type 1: eisa irq 12 = 10602291
 evcnt type 1: vector 0x900 = 1
 db> show uvmexp
 Current UVM status:
   pagesize=8192 (0x2000), pagemask=0x1fff, pageshift=13
   2547 VM pages: 0 active, 0 inactive, 0 wired, 2418 free
   pages  0 anon, 0 file, 0 exec
   freemin=0, free-target=0, wired-max=0
   faults=0, traps=1, intrs=10602292, ctxswitch=0
   softint=0, syscalls=0, swapins=0, swapouts=0
   fault counts:
     noram=0, noanon=0, pgwait=0, pgrele=0
     ok relocks(total)=0(0), anget(retrys)=0(0), amapcopy=0
     neighbor anon/obj pg=0/0, gets(lock/unlock)=0/0
     cases: anon=0, anoncow=0, obj=0, prcopy=0, przero=0
   daemon and swap counts:
     woke=0, revs=0, scans=0, obscans=0, anscans=0
     busy=0, freed=0, reactivate=0, deactivate=0
     pageouts=0, pending=0, nswget=0
     nswapdev=0, swpgavail=0
     swpages=0, swpginuse=0, swpgonly=0, paging=0
 db>
 -----------------------
 -- 
 Christoph

From: Izumi Tsutsui <tsutsui@netbsd.org>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: PR/36628 CVS commit: src/sys/arch/alpha/jensenio
Date: Fri, 27 Jul 2007 13:37:07 +0000 (UTC)

 Module Name:	src
 Committed By:	tsutsui
 Date:		Fri Jul 27 13:37:07 UTC 2007

 Modified Files:
 	src/sys/arch/alpha/jensenio: jensenio_intr.c

 Log Message:
 Check a correct value on a sanity check in jensenio_eisa_intr_map().

 Fixes yet another bug on Jensen found on tracking PR port-alpha/36628.


 To generate a diff of this commit:
 cvs rdiff -r1.5 -r1.6 src/sys/arch/alpha/jensenio/jensenio_intr.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Fri, 27 Jul 2007 23:58:07 +0900

 ChristophFranzen@gmx.net wrote:

 > the ahb0 interrupt seems OK (the INTDEF and ECU values are both 12), 
 > but it still hangs at "enabling interrupts", the "evcnt" number is 
 > still large.

 Okay, I've checked mailing list archives and notice there is
 no report that ahb(4) worked on Jensen but there is the similar hang:
 http://mail-index.netbsd.org/port-alpha/2000/10/29/0000.html

 Looks interrupts on Jensen PICs are not ack'ed properly.
 I don't know what is the right way to handle this, but
 anyway could you try this one (which includes some PIC fixes)?
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-GENERIC-20070727.gz

 ---
 Index: jensenio_intr.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/jensenio/jensenio_intr.c,v
 retrieving revision 1.6
 diff -u -r1.6 jensenio_intr.c
 --- jensenio_intr.c	27 Jul 2007 13:37:07 -0000	1.6
 +++ jensenio_intr.c	27 Jul 2007 14:27:50 -0000
 @@ -56,6 +56,8 @@
  #include <dev/isa/isareg.h>
  #include <dev/isa/isavar.h>

 +#include <dev/ic/i8259reg.h>
 +
  #include <alpha/jensenio/jenseniovar.h>

  static bus_space_tag_t pic_iot;
 @@ -71,6 +73,11 @@
  int	jensenio_eisa_intr_alloc(void *, int, int, int *);

  #define	JENSEN_MAX_IRQ		16
 +#define	IRQ_SLAVE		2
 +
 +#ifndef STRAY_MAX
 +#define	STRAY_MAX		10
 +#endif

  struct alpha_shared_intr *jensenio_eisa_intr;

 @@ -103,11 +110,13 @@
  jensenio_specific_eoi(int irq)
  {

 -	if (irq > 7)
 -		bus_space_write_1(pic_iot, pic_ioh[1],
 -		    0, 0x20 | (irq & 0x07));
 -	bus_space_write_1(pic_iot, pic_ioh[0],
 -	    0, 0x20 | (irq > 7 ? 2 : irq));
 +	if (irq >= 8) {
 +		bus_space_write_1(pic_iot, pic_ioh[1], PIC_OCW2,
 +		    OCW2_SELECT | OCW2_SL | OCW2_EOI | OCW2_ILS(irq - 8));
 +		irq = IRQ_SLAVE;
 +	}
 +	bus_space_write_1(pic_iot, pic_ioh[0], PIC_OCW2,
 +	    OCW2_SELECT | OCW2_SL | OCW2_EOI | OCW2_ILS(irq));
  }

  void
 @@ -128,7 +137,7 @@
  		    i, jensenio_intr_deftype[i]);
  		/* Don't bother with stray interrupts. */
  		alpha_shared_intr_set_maxstrays(jensenio_eisa_intr,
 -		    i, 0);
 +		    i, STRAY_MAX);

  		cp = alpha_shared_intr_string(jensenio_eisa_intr, i);
  		sprintf(cp, "irq %d", i);
 @@ -140,8 +149,8 @@
  	/*
  	 * The cascasde interrupt must be edge triggered and always enabled.
  	 */
 -	jensenio_setlevel(2, 0);
 -	jensenio_enable_intr(2, 1);
 +	jensenio_setlevel(IRQ_SLAVE, 0);
 +	jensenio_enable_intr(IRQ_SLAVE, 1);

  	/*
  	 * Initialize the EISA chipset.
 @@ -289,12 +298,12 @@
  	pic = irq >> 3;
  	bit = 1 << (irq & 0x7);

 -	mask = bus_space_read_1(pic_iot, pic_ioh[pic], 1);
 +	mask = bus_space_read_1(pic_iot, pic_ioh[pic], PIC_OCW1);
  	if (onoff)
  		mask &= ~bit;
  	else
  		mask |= bit;
 -	bus_space_write_1(pic_iot, pic_ioh[pic], 1, mask);
 +	bus_space_write_1(pic_iot, pic_ioh[pic], PIC_OCW1, mask);
  }

  void
 @@ -334,4 +343,58 @@
  	 */
  	if (bus_space_map(pic_iot, 0x4d0, 2, 0, &pic_elcr_ioh))
  		panic("jensenio_init_intr: unable to map ELCR registers");
 +
 +	/*
 +	 * Initialize master PIC.
 +	 */
 +
 +	/* reset; program device, four bytes */
 +	bus_space_write_1(pic_iot, picaddr[0],
 +	    PIC_ICW1, ICW1_SELECT | ICW1_IC4);
 +	/* starting at this vector index */
 +	bus_space_write_1(pic_iot, picaddr[0],
 +	    PIC_ICW2, 0);				/* XXX */
 +	/* slave on line 2 */
 +	bus_space_write_1(pic_iot, picaddr[0],
 +	    PIC_ICW3, ICW3_CASCADE(IRQ_SLAVE));
 +	/* special fully nested mode, 8086 mode */
 +	bus_space_write_1(pic_iot, picaddr[0],
 +	    PIC_ICW4, ICW4_SFNM | ICW4_8086);
 +	/* special mask mode */
 +	bus_space_write_1(pic_iot, picaddr[0],
 +	    PIC_OCW3, OCW3_SELECT | OCW3_SSMM | OCW3_SMM);
 +	/* read IRR by default */
 +	bus_space_write_1(pic_iot, picaddr[0],
 +	    PIC_OCW3, OCW3_SELECT | OCW3_RR);
 +
 +	/*
 +	 * Initialize slave PIC.
 +	 */
 +
 +	/* reset; program device, four bytes */
 +	bus_space_write_1(pic_iot, picaddr[1],
 +	    PIC_ICW1, ICW1_SELECT | ICW1_IC4);
 +	/* starting at this vector index */
 +	bus_space_write_1(pic_iot, picaddr[1],
 +	    PIC_ICW2, 8);				/* XXX */
 +	/* slave connected to line 2 of master */
 +	bus_space_write_1(pic_iot, picaddr[1],
 +	    PIC_ICW3, ICW3_SIC(IRQ_SLAVE));
 +	/* special fully nested mode, 8086 mode */
 +	bus_space_write_1(pic_iot, picaddr[1],
 +	    PIC_ICW4, ICW4_SFNM | ICW4_8086);
 +	/* special mask mode */
 +	bus_space_write_1(pic_iot, picaddr[1],
 +	    PIC_OCW3, OCW3_SELECT | OCW3_SSMM | OCW3_SMM);
 +	/* read IRR by default */
 +	bus_space_write_1(pic_iot, picaddr[1],
 +	    PIC_OCW3, OCW3_SELECT | OCW3_RR);
 +
 +	/* mask all interrupts */
 +	bus_space_write_1(pic_iot, picaddr[0], PIC_OCW1, 0xff);
 +	bus_space_write_1(pic_iot, picaddr[1], PIC_OCW1, 0xff);
 +
 +	/* default to edge-triggered */
 +	bus_space_write_1(pic_iot, pic_elcr_ioh, 0, 0);
 +	bus_space_write_1(pic_iot, pic_elcr_ioh, 1, 0);
  }

 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Fri, 27 Jul 2007 22:28:30 +0200

 > Okay, I've checked mailing list archives and notice there is
 > no report that ahb(4) worked on Jensen but there is the similar hang:
 > http://mail-index.netbsd.org/port-alpha/2000/10/29/0000.html

 This person's name sounds german, and he has got a german ISP, so I 
 hope that at least one of the mail addresses is still valid...

 > Looks interrupts on Jensen PICs are not ack'ed properly.
 > I don't know what is the right way to handle this,

 So I've written him a few lines in german language, perhaps he 
 remembers something useful.

 > but
 > anyway could you try this one (which includes some PIC fixes)?

 This one panics earlier than before:
 -----------------------
 NetBSD 4.0_BETA2 (GENERIC_MD) #0: Fri Jul 27 23:43:54 JST 2007
         tsutsui@mirage:/r/work/src-
 4.0/src/sys/arch/alpha/compile/GENERIC_MD
 DEC2000 model 300, 150MHz, s/n
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 16608 KB
 mainbus0 (root)
 cpu0 at mainbus0: ID 0 (primary), 21064-0
 jensenio0 at mainbus0

 CPU 0: fatal kernel trap:

 CPU 0    trap entry = 0x2 (memory management fault)
 CPU 0    a0         = 0x1000
 CPU 0    a1         = 0x1
 CPU 0    a2         = 0x1
 CPU 0    pc         = 0xfffffc000079c1fc
 CPU 0    ra         = 0xfffffc000079f50c
 CPU 0    pv         = 0xfffffc000079c1ec
 CPU 0    curlwp    = 0xfffffc0000f642b8
 CPU 0        pid = 0, comm = swapper

 panic: trap
 Stopped in pid 0.1 (swapper) at netbsd:cpu_Debugger+0x4:        ret   
   zero,(ra
 )
 db> trace
 cpu_Debugger() at netbsd:cpu_Debugger+0x4
 panic() at netbsd:panic+0x1bc
 trap() at netbsd:trap+0xce0
 XentMM() at netbsd:XentMM+0x20
 --- memory management fault (from ipl 6) ---
 jensenio_io_write_1() at netbsd:jensenio_io_write_1+0x10
 jensenio_pic_init() at netbsd:jensenio_pic_init+0x11c
 jensenio_intr_init() at netbsd:jensenio_intr_init+0x40
 jensenio_attach() at netbsd:jensenio_attach+0x78
 config_attach_loc() at netbsd:config_attach_loc+0x480
 mbattach() at netbsd:mbattach+0x11c
 config_attach_loc() at netbsd:config_attach_loc+0x480
 cpu_configure() at netbsd:cpu_configure+0x40
 configure() at netbsd:configure+0x7c
 main() at netbsd:main+0x1b4
 locorestart() at netbsd:locorestart+0x64
 --- root of call graph ---
 db> show event
 evcnt type 0: uvmmap ukh_alloc = 2
 evcnt type 0: uvmmap uke_free = 10
 evcnt type 0: uvmmap uke_alloc = 57
 evcnt type 0: uvmmap mlk_hint = 1
 evcnt type 0: uvmmap mlk_call = 7
 evcnt type 0: uvmmap map_call = 52
 evcnt type 0: uvmmap knomerge = 12
 evcnt type 0: uvmmap kbackmerge = 40
 db> show uvmexp
 Current UVM status:
   pagesize=8192 (0x2000), pagemask=0x1fff, pageshift=13
   2098 VM pages: 0 active, 0 inactive, 0 wired, 1991 free
   pages  0 anon, 0 file, 0 exec
   freemin=0, free-target=0, wired-max=0
   faults=1, traps=2, intrs=0, ctxswitch=0
   softint=0, syscalls=0, swapins=0, swapouts=0
   fault counts:
     noram=0, noanon=0, pgwait=0, pgrele=0
     ok relocks(total)=0(0), anget(retrys)=0(0), amapcopy=0
     neighbor anon/obj pg=0/0, gets(lock/unlock)=0/0
     cases: anon=0, anoncow=0, obj=0, prcopy=0, przero=0
   daemon and swap counts:
     woke=0, revs=0, scans=0, obscans=0, anscans=0
     busy=0, freed=0, reactivate=0, deactivate=0
     pageouts=0, pending=0, nswget=0
     nswapdev=0, swpgavail=0
     swpages=0, swpginuse=0, swpgonly=0, paging=0
 db>
 -----------------------
 -- 
 Christoph Franzen

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Fri, 27 Jul 2007 22:57:48 +0200

 > Okay, I've checked mailing list archives and notice there is
 > no report that ahb(4) worked on Jensen but there is the similar hang:
 > http://mail-index.netbsd.org/port-alpha/2000/10/29/0000.html

 Did you also find this one?

 http://mail-index.netbsd.org/port-alpha/2002/01/10/0000.html

 Regards, Christoph

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Sat, 28 Jul 2007 09:28:42 +0900

 ChristophFranzen@gmx.net wrote:

 > This one panics earlier than before:
  :
 > --- memory management fault (from ipl 6) ---
 > jensenio_io_write_1() at netbsd:jensenio_io_write_1+0x10
 > jensenio_pic_init() at netbsd:jensenio_pic_init+0x11c

 Ah, there are bothces in the function.
 (we have to use pic_ioh[] instead of picaddr[] for bus_space_write_1(9))

 Please try fixed one:
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-GENERIC-20070728.gz
 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Sat, 28 Jul 2007 03:23:24 +0200

 Hello,

 there are finally some good news: it starts several processes and can 
 do a "real" reboot (rather than going back to SRM). 

 You'll find the whole output below (without me calling for "help" and 
 some duplicates and typographic errors in between).

 Unfortunately we still seem to be stuck at the SCSI adapter:
 ------------------------------
 Kernelized RAIDframe activated
 md0: internal 4650 KB image area
 scsibus0: waiting 2 seconds for devices to settle...
 probe(ahb0:0:0:0): timed out
 probe(ahb0:0:0:0): timed out AGAIN
 Stopped at      netbsd:cpu_Debugger+0x4:        ret     zero,(ra)
 ------------------------------

 There *is* a device with ID 0 installed, as you can see in the SRM 
 console:
 ------------------------------
 >>> sh dev

  BOOTDEV      ADDR      DEVTYPE    RM/FX    DEVNAM      REV NUMBYTES
  -------      ----      -------    -----    ------      --- ------
  FD0          PC Floppy DISK       RM   
  SCSI Devices..
  DKA0         A/0/0     DISK       FX       CFP2105     2D4D 2.14GB
  DKA400       A/4/0     RODISK     RM       CD-R        1.4D ......
  DKA500       A/5/0     DISK       FX       CP30540     B0BC 545.74MB
  HOST         A/7/0     PROC                AHA1742A    E   
 ------------------------------

 However, this is not found by NetBSD when it begins probing the bus 
 for device 0. The adapter's LED keeps dark, so there is no SCSI 
 activity at all at this point. A Reboot without powering down works, 
 while a halt from ddb leads to a situation, where the SRM console 
 would also fail to find the hostadapter:

 ------------------------------
 db> reboot 0x8
 syncing disks... done
 unmounting file systems... done
 halted.


 ?05 HLT INSTR
   PC= FFFFFC00.00300118 PSL= 00000000.00000006

  >>> sh dev

   BOOTDEV      ADDR      DEVTYPE    RM/FX    DEVNAM      REV NUMBYTES
   -------      ----      -------    -----    ------      --- --------

 *** UNEXPECTED INTERRUPT ***

 VECTOR   = 000007E0
 EXC_ADDR = 00030988
 PS       = 38000000.00001300
 ------------------------------

 The rest of the possibly relevant logs follows:

 ------------------------------
 NetBSD 4.0_BETA2 (GENERIC_MD) #1: Sat Jul 28 09:21:31 JST 2007
 	tsutsui@mirage:/r/work/src-4.0/src/sys/arch/alpha/compile/GENERIC_MD
 DEC2000 model 300, 150MHz, s/n 
 8192 byte page size, 1 processor.
 total memory = 32768 KB
 (2048 KB reserved for PROM, 30720 KB used by NetBSD)
 avail memory = 16608 KB
 mainbus0 (root)
 cpu0 at mainbus0: ID 0 (primary), 21064-0
 jensenio0 at mainbus0
 pckbc0 at jensenio0 port 0x60
 pms0 at pckbc0 (aux slot)
 pckbc0: aux slot interrupting at vector 0x990
 wsmouse0 at pms0 mux 0
 com0 at jensenio0 port 0x3f8: ns8250 or ns16450, no fifo
 com0: console
 com0: interrupting at vector 0x900
 com1 at jensenio0 port 0x2f8: ns8250 or ns16450, no fifo
 com1: interrupting at vector 0x920
 lpt0 at jensenio0 port 0x3bc
 lpt0: interrupting at eisa irq 1
 mcclock0 at jensenio0 port 0x170: mc146818 or compatible
 eisa0 at jensenio0
 ahb0 at eisa0 slot 2: Adaptec AHA-1742A SCSI
 ahb0: INTDEF configured to use irq 12, ECU configured to use irq 12
 ahb0: interrupting at eisa irq 12
 scsibus0 at ahb0: 8 targets, 8 luns per target
 Compaq NetFlex-2 ENET-TR at eisa0 slot 3 not configured
 isa0 at jensenio0
 depca: address not found
 attimer0 at isa0 port 0x40-0x43: AT Timer
 we1 at isa0 port 0x300-0x31f iomem 0xcc000-0xcffff irq 10
 we1: WD8013EPC Ethernet (16-bit)
 we1: Ethernet address 00:00:c0:db:6c:2e
 vga0 at isa0 port 0x3b0-0x3df iomem 0xa0000-0xbffff
 wsdisplay0 at vga0 kbdmux 1
 wsmux1: connecting to wsdisplay0
 pcppi0 at isa0 port 0x61
 pcppi0: children must have an explicit unit
 midi0 at pcppi0: PC speaker (CPU-intensive output)
 spkr0 at pcppi0
 isabeep0 at pcppi0
 fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
 pcppi0: attached to attimer0
 enabling interrupts
 WARNING: stray interrupt, vector 0x840
 calling hwrpb_restart_setup()
 calling initclocks()
 cpu_initclocks()
 starting clock
 calling config_process_deferred()
 fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
 configure() done.
 Kernelized RAIDframe activated
 md0: internal 4650 KB image area
 scsibus0: waiting 2 seconds for devices to settle...
 probe(ahb0:0:0:0): timed out
 probe(ahb0:0:0:0): timed out AGAIN
 Stopped at      netbsd:cpu_Debugger+0x4:        ret     zero,(ra)
 db> trace
 cpu_Debugger() at netbsd:cpu_Debugger+0x4
 comintr() at netbsd:comintr+0x138
 com_jensenio_intr() at netbsd:com_jensenio_intr+0x24
 interrupt() at netbsd:interrupt+0x230
 XentInt() at netbsd:XentInt+0x1c
 --- interrupt (from ipl 0) ---
 idle() at netbsd:idle+0x48
 mi_switch() at netbsd:mi_switch+0xe0
 ltsleep() at netbsd:ltsleep+0x284
 scsipi_execute_xs() at netbsd:scsipi_execute_xs+0x318
 scsipi_command() at netbsd:scsipi_command+0xb8
 scsipi_inquire() at netbsd:scsipi_inquire+0xa0
 scsi_probe_bus() at netbsd:scsi_probe_bus+0x290
 scsibus_config() at netbsd:scsibus_config+0xcc
 scsipi_completion_thread() at netbsd:scsipi_completion_thread+0x30
 exception_return() at netbsd:exception_return
 --- root of call graph ---
 db> ps /w
  PID          COMMAND     EMUL  PRI UTIME STIME WAIT-MSG    WAIT-
 CHANNEL
  4          cryptoret   netbsd   36   0.2   0.2 crypto_wait 
 netbsd:crp_ret_q
  3           scsibus0   netbsd   16   0.0   0.4 xscmd       
 0xfffffc0001f13e60
  2               pms0   netbsd   32   0.1   0.1 pmsreset    
 0xfffffe0000071e74
  1               init   netbsd   32   0.1   0.1 initexec    
 netbsd:start_init_ex
 ec
  0            swapper   netbsd   32   0.0   0.4 cfpend      
 netbsd:config_pendin
 g
 db> show  event
 evcnt type 0: uvmmap ukh_alloc = 3
 evcnt type 0: uvmmap uke_free = 10
 evcnt type 0: uvmmap uke_alloc = 85
 evcnt type 0: uvmmap mlk_hint = 8
 evcnt type 0: uvmmap mlk_call = 14
 evcnt type 0: uvmmap map_call = 81
 evcnt type 0: uvmmap knomerge = 17
 evcnt type 0: uvmmap kbackmerge = 64
 evcnt type 1: soft net = 4
 evcnt type 1: cpu0 clock = 138377
 evcnt type 1: cpu0 device = 2
 evcnt type 1: vector 0x900 = 1
 db> show uvmexp
 Current UVM status:
   pagesize=8192 (0x2000), pagemask=0x1fff, pageshift=13
   2098 VM pages: 0 active, 0 inactive, 8 wired, 1905 free
   pages  8 anon, 0 file, 0 exec
   freemin=0, free-target=0, wired-max=0
   faults=8, traps=1, intrs=138379, ctxswitch=10
   softint=4, syscalls=0, swapins=0, swapouts=0
   fault counts:
     noram=0, noanon=0, pgwait=0, pgrele=0
     ok relocks(total)=0(0), anget(retrys)=0(0), amapcopy=0
     neighbor anon/obj pg=0/0, gets(lock/unlock)=8/0
     cases: anon=0, anoncow=0, obj=8, prcopy=0, przero=0
   daemon and swap counts:
     woke=0, revs=0, scans=0, obscans=0, anscans=0
     busy=0, freed=0, reactivate=0, deactivate=0
     pageouts=0, pending=0, nswget=0
     nswapdev=0, swpgavail=0
     swpages=0, swpginuse=0, swpgonly=0, paging=0
 db> show page
 PAGE 0xfffffc00007e4ff0:
   flags=0, pqflags=4801<FREE,PRIVATE4,PRIVATE7>, wire_count=63008, 
 pa=0x20218000
 243f6801
   uobject=0x6bfa800144203000, uanon=0x4821d681f4600002, 
 offset=0x2021c000243ffc0
 1 loan_count=17921
   [page ownership tracking disabled]
 db> show vnode
 OBJECT 0xfffffc00007e4ff0: locked=1811578881, 
 pgops=0x203f000d46020002, npages=5
 38902529, refs=-197132283

 VNODE flags fffffffff4600002<TEXT>
 mp 0x4801f62046010000 numoutput 1210177153 size 0x47ff04004a01f621
 data 0x406205a2243f2c00 usecount -197132283 writecount 
 7780672049162235904 holdc
 nt 2315342790285851649 numoutput 1210177153
 tag UNKNOWN(-197132278) type UNKNOWN(-195035124) mount 
 0x4801f62046010000 typeda
 ta 0x404355a148235682
 db> show object
 OBJECT 0xfffffc00007e4ff0: locked=1811578881, 
 pgops=0x203f000d46020002, npages=5
 38902529, refs=-197132283
 db> reboot
 syncing disks... done
 unmounting file systems... done
 rebooting...


   83 BOOT SYS
 INIT-S-CPU...
 AUDIT_BOOT_STARTS ... 
 AUDIT_CHECKSUM_GOOD
 AUDIT_LOAD_BEGINS
 AUDIT_LOAD_DONE
 ------------------------------
 [...]
 ------------------------------
 db> x
 netbsd:cpu_Debugger+0x4:        6bfa8001
 db> reboot 0x8
 syncing disks... done
 unmounting file systems... done
 halted.


 ?05 HLT INSTR
   PC= FFFFFC00.00300118 PSL= 00000000.00000006

  >>> sh dev

   BOOTDEV      ADDR      DEVTYPE    RM/FX    DEVNAM      REV     
 NUMBYTES
   -------      ----      -------    -----    ------      ---     -----
 ---

 *** UNEXPECTED INTERRUPT ***

 VECTOR   = 000007E0
 EXC_ADDR = 00030988
 PS       = 38000000.00001300

 R00 = 00000000.0000000C R01 = 00000000.01E6443F R02 = 
 00000000.000C34B0 
 R03 = 00000000.000B8300 R04 = 00000000.00000008 R05 = 
 00000000.0006A5C0 
 R06 = 00000000.000FEC28 R07 = 00000000.0006A5C0 R08 = 
 00000000.00000000 
 R09 = 00000000.00000001 R10 = FFFFFFFF.FFFFFFBF R11 = 
 00000000.00000001 
 R12 = 00000000.00000001 R13 = 00000000.00000001 R14 = 
 00000000.00000001 
 R15 = FFFFFFFF.FFFFFFBF R16 = 00000000.000001F4 R17 = 
 00000000.0001FA80 
 R18 = 00000000.00000000 R19 = 00000000.00460007 R20 = 
 00000000.00004600 
 R21 = 00000000.00000001 R22 = 00000000.CBC0C193 R23 = 
 00000000.CBC0C19F 
 R24 = 00000000.00000001 R25 = 00000000.00000001 R26 = 
 00000000.00066738 
 R27 = 00000000.000BB8F8 R28 = 00000000.000B82FC R29 = 
 00000000.000FE978 

  >>>
 ------------------------------

 -- 
 Christoph Franzen

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Sat, 28 Jul 2007 13:07:14 +0900

 ChristophFranzen@gmx.net wrote:

 > scsibus0: waiting 2 seconds for devices to settle...
 > probe(ahb0:0:0:0): timed out
 > probe(ahb0:0:0:0): timed out AGAIN
 > Stopped at      netbsd:cpu_Debugger+0x4:        ret     zero,(ra)
 > db> show  event
  :
 > evcnt type 1: cpu0 clock = 138377
 > evcnt type 1: cpu0 device = 2
 > evcnt type 1: vector 0x900 = 1
 > db>

 Okay, in this case there is no interrupt and maybe we shouldn't setup
 PICs as x86 otherwise interrupts won't occur even on SRM console.

 Could you please this (only jensenio_intr_eoi() is changed)?
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-GENERIC-20070728a.gz

 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Sat, 28 Jul 2007 15:46:43 +0200

 Now it says: "stray eisa irq 12", the SRM console is OK afterwards:
 --------------------
 NetBSD 4.0_BETA2 (GENERIC_MD) #2: Sat Jul 28 12:59:01 JST 2007
         tsutsui@mirage:/r/work/src-
 4.0/src/sys/arch/alpha/compile/GENERIC_MD
 [...]
 ahb0 at eisa0 slot 2: Adaptec AHA-1742A SCSI
 ahb0: INTDEF configured to use irq 12, ECU configured to use irq 12
 ahb0: interrupting at eisa irq 12
 scsibus0 at ahb0: 8 targets, 8 luns per target
 [...]
 fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
 pcppi0: attached to attimer0
 enabling interrupts
 stray eisa irq 12
 stray eisa irq 12
 stray eisa irq 12
 stray eisa irq 12
 stray eisa irq 12
 stray eisa irq 12
 stray eisa irq 12
 stray eisa irq 12
 stray eisa irq 12
 stray eisa irq 12; stopped logging
 Stopped in pid 0.1 (swapper) at netbsd:cpu_Debugger+0x4:        ret   
   zero,(ra
 )
 db> trace
 cpu_Debugger() at netbsd:cpu_Debugger+0x4
 comintr() at netbsd:comintr+0x138
 com_jensenio_intr() at netbsd:com_jensenio_intr+0x24
 interrupt() at netbsd:interrupt+0x230
 XentInt() at netbsd:XentInt+0x1c
 --- interrupt (from ipl 0) ---
 spl0() at netbsd:spl0+0x30
 cpu_configure() at netbsd:cpu_configure+0x7c
 configure() at netbsd:configure+0x7c
 main() at netbsd:main+0x1b4
 locorestart() at netbsd:locorestart+0x64
 --- root of call graph ---
 db> ps /w
  PID          COMMAND     EMUL  PRI UTIME STIME WAIT-MSG    WAIT-
 CHANNEL
 >0            swapper   netbsd    0   0.0   0.0
 db> show event
 evcnt type 0: uvmmap ukh_alloc = 2
 evcnt type 0: uvmmap uke_free = 10
 evcnt type 0: uvmmap uke_alloc = 65
 evcnt type 0: uvmmap mlk_hint = 1
 evcnt type 0: uvmmap mlk_call = 6
 evcnt type 0: uvmmap map_call = 60
 evcnt type 0: uvmmap knomerge = 12
 evcnt type 0: uvmmap kbackmerge = 48
 evcnt type 1: cpu0 device = 8488145
 evcnt type 1: eisa irq 12 = 8488144
 evcnt type 1: vector 0x900 = 1
 db> show uvmexp
 Current UVM status:
   pagesize=8192 (0x2000), pagemask=0x1fff, pageshift=13
   2098 VM pages: 0 active, 0 inactive, 0 wired, 1969 free
   pages  0 anon, 0 file, 0 exec
   freemin=0, free-target=0, wired-max=0
   faults=0, traps=1, intrs=8488145, ctxswitch=0
   softint=0, syscalls=0, swapins=0, swapouts=0
   fault counts:
     noram=0, noanon=0, pgwait=0, pgrele=0
     ok relocks(total)=0(0), anget(retrys)=0(0), amapcopy=0
     neighbor anon/obj pg=0/0, gets(lock/unlock)=0/0
     cases: anon=0, anoncow=0, obj=0, prcopy=0, przero=0
   daemon and swap counts:
     woke=0, revs=0, scans=0, obscans=0, anscans=0
     busy=0, freed=0, reactivate=0, deactivate=0
     pageouts=0, pending=0, nswget=0
     nswapdev=0, swpgavail=0
     swpages=0, swpginuse=0, swpgonly=0, paging=0
 db> reboot 0x8
 halted.


 ?05 HLT INSTR
   PC= FFFFFC00.00300118 PSL= 00000000.00000006

 >>> sh dev

   BOOTDEV      ADDR      DEVTYPE    RM/FX    DEVNAM      REV     
 NUMBYTES
   -------      ----      -------    -----    ------      ---     -----
 ---
   FD0          PC Floppy DISK       RM
   SCSI Devices..
   DKA0         A/0/0     DISK       FX       CFP2105     2D4D      
 2.14GB
   DKA400       A/4/0     RODISK     RM       CD-R        1.4D    
 ......
   DKA500       A/5/0     DISK       FX       CP30540     B0BC    
 545.74MB
   HOST         A/7/0     PROC                AHA1742A    E

 >>>
 --------------------
 -- 
 Christoph Franzen

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Sun, 29 Jul 2007 01:43:05 +0900

 ChristophFranzen@gmx.net wrote:

 > Now it says: "stray eisa irq 12", the SRM console is OK afterwards:

 Hmm.

 Could you check if interrupts from we1 Ethernet work
 with this one (ahb at eisa disabled)?
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070729.gz

 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Sat, 28 Jul 2007 23:09:43 +0200

 Hello.

 > Could you check if interrupts from we1 Ethernet work

 It reaches init, but hangs after complaining about the clock. The 
 Jensen's hardware clock is at 0x170 and has got an epoch value of 
 2000 (1900 on most other SRM machines and Ruffians, 1980 on most ARC 
 machines and Jensens with old Firmware).

 I don't find any reference to the IRQ 10 of the we1:

 md0: internal 4650 KB image area
 WARNING: can't figure what device matches "SCSI 1 2 0 0 500 0 JENS-
 IO"
 root on md0a dumps on md0b
 root file system type: ffs
 WARNING: clock gained 6 days -- CHECK AND RESET THE DATE!
 Stopped in pid 1.1 (init) at    netbsd:cpu_Debugger+0x4:        ret   
   zero,(ra
 )
 db> trace
 cpu_Debugger() at netbsd:cpu_Debugger+0x4
 comintr() at netbsd:comintr+0x138
 com_jensenio_intr() at netbsd:com_jensenio_intr+0x24
 interrupt() at netbsd:interrupt+0x230
 XentInt() at netbsd:XentInt+0x1c
 --- interrupt (from ipl 0) ---
 --- user mode ---
 db> ps /w
  PID          COMMAND     EMUL  PRI UTIME STIME WAIT-MSG    WAIT-
 CHANNEL
  6           aiodoned   netbsd    4   0.0   0.0 aiodoned    
 netbsd:uvm+0x2c
  5            ioflush   netbsd   40   0.0   0.0 syncer      
 netbsd:rushjob
  4         pagedaemon   netbsd    4   0.0   0.0 pgdaemon    
 netbsd:uvm+0x1c
  3          cryptoret   netbsd   36   0.0   0.0 crypto_wait 
 netbsd:crp_ret_q
  2               pms0   netbsd   32   0.0   0.0 pmsreset    
 0xfffffe0000071e74
 >1               init   netbsd   71  78.6   0.0
  0            swapper   netbsd    4   0.0   0.0 scheduler   
 netbsd:proc0
 db> show event
 evcnt type 0: FP proc use = 1
 evcnt type 0: uvmmap ukh_alloc = 3
 evcnt type 0: uvmmap uke_free = 13
 evcnt type 0: uvmmap uke_alloc = 90
 evcnt type 0: uvmmap mlk_hint = 84
 evcnt type 0: uvmmap mlk_call = 119
 evcnt type 0: uvmmap map_call = 130
 evcnt type 0: uvmmap knomerge = 57
 evcnt type 0: uvmmap kbackmerge = 65
 evcnt type 0: uvmmap unomerge = 8
 evcnt type 0: vmcmd kills = 1
 evcnt type 0: vmcmd calls = 6
 evcnt type 1: soft net = 1
 evcnt type 1: cpu0 clock = 79654
 evcnt type 1: cpu0 device = 2
 evcnt type 1: eisa irq 6 = 1
 evcnt type 1: vector 0x900 = 1
 db> show uvmexp
 Current UVM status:
   pagesize=8192 (0x2000), pagemask=0x1fff, pageshift=13
   2099 VM pages: 43 active, 0 inactive, 12 wired, 1835 free
   pages  18 anon, 0 file, 37 exec
   freemin=32, free-target=42, wired-max=699
   faults=59, traps=52, intrs=79656, ctxswitch=964
   softint=878, syscalls=24, swapins=0, swapouts=0
   fault counts:
     noram=0, noanon=0, pgwait=0, pgrele=0
     ok relocks(total)=35(35), anget(retrys)=1(0), amapcopy=2
     neighbor anon/obj pg=0/0, gets(lock/unlock)=50/35
     cases: anon=1, anoncow=0, obj=50, prcopy=0, przero=6
   daemon and swap counts:
     woke=0, revs=0, scans=0, obscans=0, anscans=0
     busy=0, freed=0, reactivate=0, deactivate=0
     pageouts=0, pending=0, nswget=0
     nswapdev=0, swpgavail=0
     swpages=0, swpginuse=0, swpgonly=0, paging=0
 db>

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Sun, 29 Jul 2007 13:06:28 +0900

 ChristophFranzen@gmx.net wrote:

 > It reaches init, but hangs after complaining about the clock.

 As you can see sys/arch/alpha/alpha/clock.c, inittodr(9)
 compares its system clock and timestamp in root filesystem,
 and then it shows a warning message if there is a certain
 difference. The mdroot image was created on July 22 so
 "clock gained 6 days" indicates that the system clock is
 read properly.

 > db> ps /w
 >  PID          COMMAND     EMUL  PRI UTIME STIME WAIT-MSG    WAIT-
 > CHANNEL
 >  6           aiodoned   netbsd    4   0.0   0.0 aiodoned    netbsd:uvm+0x2c
 >  5            ioflush   netbsd   40   0.0   0.0 syncer      netbsd:rushjob
 >  4         pagedaemon   netbsd    4   0.0   0.0 pgdaemon    netbsd:uvm+0x1c
 >  3          cryptoret   netbsd   36   0.0   0.0 crypto_wait netbsd:crp_ret_q
 >  2               pms0   netbsd   32   0.0   0.0 pmsreset    0xfffffe0000071e74
 > >1               init   netbsd   71  78.6   0.0
 >  0            swapper   netbsd    4   0.0   0.0 scheduler   netbsd:proc0

 This shows that most tasks in sys/kern/init_main.c:main()
 are done and looks system trying to fork /bin/sh.
 On my AlphaPC 164 that image just works (system boots and
 sysinst starts) so I'm afraid it's difficult to track
 what's wrong on jensen specific part...

 > evcnt type 1: soft net = 1
 > evcnt type 1: cpu0 clock = 79654
 > evcnt type 1: cpu0 device = 2
 > evcnt type 1: eisa irq 6 = 1
 > evcnt type 1: vector 0x900 = 1

 At least one fdc(4) interrupt is handled, it seems.
 Could you try "boot -flags n" on SRM console and
 see what happens if you specify "we1" for root device?

 You would get "cannot mount root, error = xx" error
 if you don't have NFS root settings on your network,
 but you could see if interrupts from we1 are handled
 or not after the error on the ddb "show event" command.
 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Sun, 29 Jul 2007 15:50:02 +0200

 > At least one fdc(4) interrupt is handled, it seems.

 This is always so.

 > Could you try "boot -flags n" on SRM console and
 > see what happens if you specify "we1" for root device?

 Booting interactively works always.

 > You would get "cannot mount root, error = xx" error

 When I choose we1 as the boot device, the error above occurs and 
 interrupts from we1 are handled (as well as exactly one from the 
 floppy).

 After that I can choose again...

 When I choose the defaults (md0a...) I reach the install menu and 
 everything is fine except that it can't find a hard disk to install 
 to, of course.

 Summary:
 When I boot interactively with flag "n", this always succeeds, 
 regardless if I choose "we1" or the default.
 When I choose the default, the install menu is reached.
 When I boot with flag "a", it hangs eternally as previously 
 described.
 Interrupts:
 When I don't try "we1", there are no interrupts from "we1" handled.
 When I try "we1" as a boot device, interrupts from this device are 
 handled.
 There is always one floppy interrupt handled.

 Regards, Christoph

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Wed, 1 Aug 2007 23:03:39 +0900

 ChristophFranzen@gmx.net wrote:

 > When I boot interactively with flag "n", this always succeeds, 
  :
 > When I boot with flag "a", it hangs eternally as previously 
 > described.

 Hmm, it looks there is some problem around PIC initialization.

 Anyway, there is a report that ahb(4) works on AlphaServer
 http://mail-index.netbsd.org/port-alpha/2007/04/11/0011.html
 (no device is connected to ahb(4) though)
 so this may be a Jensen specific problem.

 There is no reference code about the interrupt controller on Jensen
 so I have no idea of proper solutions, but could you try this one
 (with both "a" and "n" flags)?
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070801.gz

 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Wed, 01 Aug 2007 17:59:46 +0200

 Hello,

 > Hmm, it looks there is some problem around PIC initialization.

 I'm not sure if you already know this, and if it helps:
 ftp://ftp.netbsd.org/pub/NetBSD/misc/dec-docs/ek-a0638-td.pdf.gz
 This is a detailed description of the Machine's system board 
 including the interrupt controller.
 When I was searching for information on my hard disk here, I didn't 
 find this any more, but fortunately it was still available at 
 netbsd.org.

 > Anyway, there is a report that ahb(4) works on AlphaServer
 > http://mail-index.netbsd.org/port-alpha/2007/04/11/0011.html
 > (no device is connected to ahb(4) though)
 > so this may be a Jensen specific problem.

 According to the Mailinglist, older Netbsd versions have been 
 successfully run on the Jensen, and that would have been impossible 
 without ahb(4), because the Jensen's SRM CANNOT boot from elsewhere. 
 The Alphaserver hardware is quite different from the Jensen (in fact, 
 there is nothing like the Jensen except the Culzean, which I never 
 have heard of in the real world).

 > There is no reference code about the interrupt controller on Jensen so
 > I have no idea of proper solutions, but could you try this one (with
 > both "a" and "n" flags)?

 I tried "a" at first, it stopped at this line like one of the 
 previous versions:

 stray eisa irq 12; stopped logging

 Sending Break to the serial console did not help. (Perhaps I had been 
 waiting too long?) After pressing the halt switch, I booted with flag 
 "n" with the same result, except that I was able to enter ddb(4) this 
 time. The events showed a great number of unhandled IRQ 12.

 Hans-Juergen Bergmann, who has tried to get Netbsd running on the 
 Jensen a few years ago, has answered to my email. Unfortunately, he 
 did not succeed, and had given up, but he has agreed to help testing 
 when his machine arrives in a month or so (he has moved to Oakland). 
 He has got two AHA1742A controllers, perhaps one of these has a 
 different MCODE revision. Later ones were reported to have less 
 problems. (VMS would not run on revision E, the one I have here.)

 Regards, Christoph

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Mon, 6 Aug 2007 00:59:16 +0900

 ChristophFranzen@gmx.net wrote:

 > I'm not sure if you already know this, and if it helps:
 > ftp://ftp.netbsd.org/pub/NetBSD/misc/dec-docs/ek-a0638-td.pdf.gz

 I take a look at it, but I don't see so particular quirks
 which are missed in -current code. I'll check details later.

 > According to the Mailinglist, older Netbsd versions have been 
 > successfully run on the Jensen, and that would have been impossible 
 > without ahb(4), because the Jensen's SRM CANNOT boot from elsewhere. 

 Is there any evidence that shows Jensen working with configured
 ahb(4) SCSI? I can only find Jason's post:
  http://mail-index.netbsd.org/port-alpha/2000/07/12/0002.html
 but in this dmesg "scsibus at ahb" was disabled (not configured)
 so no interrupt from ahb(4) was handled. It was the same case
 on our mdroot images without ahb(4).

 Others reported that their kernel hanged up after fd was probed
 (i.e. interrupt was enabled).

 > The Alphaserver hardware is quite different from the Jensen (in fact, 
 > there is nothing like the Jensen except the Culzean, which I never 
 > have heard of in the real world).

 Well, I meant ahb(4) driver doesn't have any MI problem
 even on LP64 platforms and probably our problems are around
 interrupt code for Jensen.
 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Mon, 06 Aug 2007 02:38:43 +0200

 > > According to the Mailinglist, older Netbsd versions have been 
 > > successfully run on the Jensen, and that would have been impossible
 > > without ahb(4), because the Jensen's SRM CANNOT boot from elsewhere.
 > > 
 > 
 > Is there any evidence that shows Jensen working with configured
 > ahb(4) SCSI?

 No, not really... I was trying to logically deduce this from the 
 postings.

 > I can only find Jason's post:
 >  http://mail-index.netbsd.org/port-alpha/2000/07/12/0002.html

 This is exactly the post I had in mind.

 > but in this dmesg "scsibus at ahb" was disabled (not configured)
 > so no interrupt from ahb(4) was handled. It was the same case
 > on our mdroot images without ahb(4).

 I obviously overlooked this line and the other one:
 WARNING: can't figure what device matches "SCSI 1 4 0 0 200 0 JENS-
 IO"
 I thought it must be running somehow, else it would not be possible 
 to actually install the system.
 Perhaps leaving it alone and using it only for booting form SRM would 
 work. After the first step one could possibly switch over to another, 
 supported disk controller...

 Would it help to have a look at the Linux driver for the AHA174x?

 > Others reported that their kernel hanged up after fd was probed
 > (i.e. interrupt was enabled).

 Well, this seems to be solved.

 > > The Alphaserver hardware is quite different from the Jensen
 > 
 > Well, I meant ahb(4) driver doesn't have any MI problem
 > even on LP64 platforms and probably our problems are around
 > interrupt code for Jensen.

 This is possible. Unfortunately I don't know much about these things. 
 There are some weird things, however. In the Hardware Reference PDF 
 file I mentioned they were referring to IRQ 9 as SCSI. This IRQ is 
 occupied by the graphics board (can only use this one or no IRQ at 
 all) and the ECU doesn't complain. The board is only recognized by 
 NetBSD as ISA with no IRQ even in EISA mode. I think the reason is 
 that it doesn't support reading the EISA id (I know for sure that it 
 doesn't support this).

 Regards, Christoph

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: ChristophFranzen@gmx.net
Cc: gnats-bugs@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management
	 trap on Jensen
Date: Mon, 6 Aug 2007 23:50:29 +0900

 ChristophFranzen@gmx.net wrote:

 > Would it help to have a look at the Linux driver for the AHA174x?

 Well, maybe we have to look at Jensen specific code
 rather than AHA174x.

 > > Others reported that their kernel hanged up after fd was probed
 > > (i.e. interrupt was enabled).
 > 
 > Well, this seems to be solved.

 No, I just enabled assertions which shows "stray" messages
 for unhandled interrupts.

 > There are some weird things, however. In the Hardware Reference PDF 
 > file I mentioned they were referring to IRQ 9 as SCSI. This IRQ is 
 > occupied by the graphics board (can only use this one or no IRQ at 
 > all) and the ECU doesn't complain. The board is only recognized by 
 > NetBSD as ISA with no IRQ even in EISA mode. I think the reason is 
 > that it doesn't support reading the EISA id (I know for sure that it 
 > doesn't support this).

 There is some related description in Alpha Linux FAQ:
 http://www.alphalinux.org/faq/FAQ-9.html#ss9.3
 but I doubt it causes our current problem.

 BTW, I also notice the folloing description in the
 DEC hardware manual:

 >> For level-triggered interrupt mode,
 >> you must remove the interrupt request signal before issuing the
 >> EOI command, or you must disable the CPU interrupt. This is
 >> necessary to prevent a second interrupt from occurring.

 I'm not sure how long window "we must disable the CPU interrupt"
 on, but Linux seems to have the simliar kludge during processing
 device interrupts on Jensen. Could you try this one?
 http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070806.gz

 ---
 Index: jensenio_intr.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/alpha/jensenio/jensenio_intr.c,v
 retrieving revision 1.6
 diff -u -r1.6 jensenio_intr.c
 --- jensenio_intr.c	27 Jul 2007 13:37:07 -0000	1.6
 +++ jensenio_intr.c	6 Aug 2007 14:41:33 -0000
 @@ -56,6 +56,8 @@
  #include <dev/isa/isareg.h>
  #include <dev/isa/isavar.h>

 +#include <dev/ic/i8259reg.h>
 +
  #include <alpha/jensenio/jenseniovar.h>

  static bus_space_tag_t pic_iot;
 @@ -71,6 +73,11 @@
  int	jensenio_eisa_intr_alloc(void *, int, int, int *);

  #define	JENSEN_MAX_IRQ		16
 +#define	IRQ_SLAVE		2
 +
 +#ifndef STRAY_MAX
 +#define	STRAY_MAX		10
 +#endif

  struct alpha_shared_intr *jensenio_eisa_intr;

 @@ -103,11 +110,14 @@
  jensenio_specific_eoi(int irq)
  {

 -	if (irq > 7)
 -		bus_space_write_1(pic_iot, pic_ioh[1],
 -		    0, 0x20 | (irq & 0x07));
 -	bus_space_write_1(pic_iot, pic_ioh[0],
 -	    0, 0x20 | (irq > 7 ? 2 : irq));
 +	if (irq >= 8) {
 +		bus_space_write_1(pic_iot, pic_ioh[1], PIC_OCW2,
 +		    OCW2_SELECT | OCW2_R | OCW2_SL | OCW2_EOI |
 +		    OCW2_ILS(irq - 8));
 +		irq = IRQ_SLAVE;
 +	}
 +	bus_space_write_1(pic_iot, pic_ioh[0], PIC_OCW2,
 +	    OCW2_SELECT | OCW2_R | OCW2_SL | OCW2_EOI | OCW2_ILS(irq));
  }

  void
 @@ -126,9 +136,8 @@
  	for (i = 0; i < JENSEN_MAX_IRQ; i++) {
  		alpha_shared_intr_set_dfltsharetype(jensenio_eisa_intr,
  		    i, jensenio_intr_deftype[i]);
 -		/* Don't bother with stray interrupts. */
  		alpha_shared_intr_set_maxstrays(jensenio_eisa_intr,
 -		    i, 0);
 +		    i, STRAY_MAX);

  		cp = alpha_shared_intr_string(jensenio_eisa_intr, i);
  		sprintf(cp, "irq %d", i);
 @@ -140,8 +149,8 @@
  	/*
  	 * The cascasde interrupt must be edge triggered and always enabled.
  	 */
 -	jensenio_setlevel(2, 0);
 -	jensenio_enable_intr(2, 1);
 +	jensenio_setlevel(IRQ_SLAVE, 0);
 +	jensenio_enable_intr(IRQ_SLAVE, 1);

  	/*
  	 * Initialize the EISA chipset.
 @@ -270,14 +279,20 @@
  void
  jensenio_iointr(void *framep, u_long vec)
  {
 -	int irq;
 +	int irq, s;

  	irq = SCB_VECTOIDX(vec - 0x800);

  	if (!alpha_shared_intr_dispatch(jensenio_eisa_intr, irq))
  		alpha_shared_intr_stray(jensenio_eisa_intr, irq, "eisa irq");

 +	/*
 +	 * Disable CPU interrupts during EOI, per DEC docs.
 +	 * Note splserial() is higher than splhigh() on alpha.
 +	 */
 +	s = splserial();
  	jensenio_specific_eoi(irq);
 +	splx(s);
  }

  void
 @@ -289,12 +304,12 @@
  	pic = irq >> 3;
  	bit = 1 << (irq & 0x7);

 -	mask = bus_space_read_1(pic_iot, pic_ioh[pic], 1);
 +	mask = bus_space_read_1(pic_iot, pic_ioh[pic], PIC_OCW1);
  	if (onoff)
  		mask &= ~bit;
  	else
  		mask |= bit;
 -	bus_space_write_1(pic_iot, pic_ioh[pic], 1, mask);
 +	bus_space_write_1(pic_iot, pic_ioh[pic], PIC_OCW1, mask);
  }

  void

 ---
 Izumi Tsutsui

From: "Christoph Franzen" <ChristophFranzen@gmx.net>
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Cc: gnats-bugs@NetBSD.org
Subject: Re: port-alpha/36628: cdhdtape image panics with memory management trap on Jensen
Date: Tue, 07 Aug 2007 02:28:06 +0200

 > >> For level-triggered interrupt mode,
 > >> you must remove the interrupt request signal before issuing the EOI
 > >> command, or you must disable the CPU interrupt. This is necessary
 > >> to prevent a second interrupt from occurring.
 > 
 > I'm not sure how long window "we must disable the CPU interrupt"
 > on, but Linux seems to have the simliar kludge during processing
 > device interrupts on Jensen. Could you try this one?
 > http://www.ceres.dti.ne.jp/~tsutsui/netbsd/cdhdtape-20070806.gz

 This causes stray IRQ 12 "as usual"; noch change in dmesg, events and 
 trace.

 When I've time, I'll try to find some useful information we might be 
 missing...

 Regards, Christoph

From: "Liam J. Foy" <liamjfoy@netbsd.org>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: PR/36628 CVS commit: [netbsd-4] src/sys/arch/alpha
Date: Tue, 21 Aug 2007 20:00:29 +0000 (UTC)

 Module Name:	src
 Committed By:	liamjfoy
 Date:		Tue Aug 21 20:00:29 UTC 2007

 Modified Files:
 	src/sys/arch/alpha/alpha [netbsd-4]: dec_2000_300.c
 	src/sys/arch/alpha/eisa [netbsd-4]: eisa_machdep.c
 	src/sys/arch/alpha/include [netbsd-4]: eisa_machdep.h
 	src/sys/arch/alpha/jensenio [netbsd-4]: jensenio.c jensenio_intr.c
 	    lpt_jensenio.c
 	src/sys/arch/alpha/pci [netbsd-4]: sio.c

 Log Message:
 Pull up following revision(s) (requested by tsutsui in ticket #815):
 	sys/arch/alpha/pci/sio.c: revision 1.41
 	sys/arch/alpha/eisa/eisa_machdep.c: revision 1.6
 	sys/arch/alpha/jensenio/jensenio.c: revision 1.14
 	sys/arch/alpha/jensenio/jensenio_intr.c: revision 1.6
 	sys/arch/alpha/include/eisa_machdep.h: revision 1.8
 	sys/arch/alpha/alpha/dec_2000_300.c: revision 1.14
 	sys/arch/alpha/jensenio/lpt_jensenio.c: revision 1.6
 Avoid NULL pointer dereference in MD device_register() function.
 Fixes a part of PR port-alpha/36628.
 Backout changes on lpt_jensenio.c rev 1.2.
 lpt at jensenio doesn't seem to have a specific interrupt vector
 but uses a normal EISA interrupt.
 Fixes another part of PR port-alpha/36628 and PR port-alpha/20386.
 More fixes for Jensen, reported and tested by Christoph Franzen
 in PR port-alpha/36628:
 - make jensenio_eisa_maxslots() return 8 (instead of 16) since
   EISA config for slot 8-15 on jensen could return invalid values
 - pass eisa_chipset_tag_t to eisa_init() and check eisa_maxslots()
   on probing EISA config space
 - pass M_ZERO to malloc(9) and make sure malloc(9) doesn't fail
 - fix typo in a debug printf, add more debug printfs, and
   use #ifdef EISA_DEBUG to enable them
 - cast uint8_t value to uint32_t before shift more than 8 bits
 - check buffer region on reading compressed data from EISA config space
 Check a correct value on a sanity check in jensenio_eisa_intr_map().
 Fixes yet another bug on Jensen found on tracking PR port-alpha/36628.


 To generate a diff of this commit:
 cvs rdiff -r1.11 -r1.11.18.1 src/sys/arch/alpha/alpha/dec_2000_300.c
 cvs rdiff -r1.5 -r1.5.58.1 src/sys/arch/alpha/eisa/eisa_machdep.c
 cvs rdiff -r1.7 -r1.7.76.1 src/sys/arch/alpha/include/eisa_machdep.h
 cvs rdiff -r1.13 -r1.13.24.1 src/sys/arch/alpha/jensenio/jensenio.c
 cvs rdiff -r1.5 -r1.5.24.1 src/sys/arch/alpha/jensenio/jensenio_intr.c
 cvs rdiff -r1.5 -r1.5.58.1 src/sys/arch/alpha/jensenio/lpt_jensenio.c
 cvs rdiff -r1.40 -r1.40.24.1 src/sys/arch/alpha/pci/sio.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

Responsible-Changed-From-To: tsutsui->port-alpha-maintainer
Responsible-Changed-By: tsutsui@narn.netbsd.org
Responsible-Changed-When: Sun, 20 Jan 2008 15:24:09 +0900
Responsible-Changed-Why:
It's too hard to debug this without real hardware.I hope someone who has Jensen will take this one.


From: "Izumi Tsutsui" <tsutsui@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/36628 CVS commit: src/sys/arch/alpha/jensenio
Date: Sat, 19 Sep 2020 16:54:34 +0000

 Module Name:	src
 Committed By:	tsutsui
 Date:		Sat Sep 19 16:54:34 UTC 2020

 Modified Files:
 	src/sys/arch/alpha/jensenio: com_jensenio.c

 Log Message:
 Possible fix for hangup on Jensen mentioned in PR/36628.

 According to comments in Linux drivers/tty/serial/8250/8250.h,
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/tty/serial/8250/8250.h?h=v5.8#n242
 the driver has to set OUT1 and OUT2 lines for "some ALPHA"
 otherwise "the machine locks up with endless interrupts."
 Note OUT2 (MCR_IENABLE) is set in MI com_attach_subr()
 so we have to set OUT1 (MCR_DSR) in the MD attachment.

 The information was notified from Miod Vallat.


 To generate a diff of this commit:
 cvs rdiff -u -r1.15 -r1.16 src/sys/arch/alpha/jensenio/com_jensenio.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

>Unformatted:

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