NetBSD Problem Report #50018

From tsutsui@ceres.dti.ne.jp  Wed Jul  1 15:22:47 2015
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Date: Thu, 2 Jul 2015 00:22:41 +0900 (JST)
From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Reply-To: tsutsui@ceres.dti.ne.jp
To: gnats-bugs@gnats.NetBSD.org
Cc: tsutsui@ceres.dti.ne.jp
Subject: macppc 7.0_RC1 ofwboot fails to load kernel on OF2 machine
X-Send-Pr-Version: 3.95

>Number:         50018
>Category:       port-macppc
>Synopsis:       macppc 7.0_RC1 ofwboot fails to load kernel
>Confidential:   no
>Severity:       critical
>Priority:       low
>Responsible:    port-macppc-maintainer
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jul 01 15:25:01 +0000 2015
>Closed-Date:    Thu Sep 06 16:20:20 +0000 2018
>Last-Modified:  Thu Sep 06 16:20:20 +0000 2018
>Originator:     Izumi Tsutsui
>Release:        NetBSD 7.0_RC1
>Organization:
>Environment:
System: NetBSD macppc 7.0_RC1
Architecture: powerpc
Machine: macppc
>Description:
ofwboot in NetBSD/macppc 7.0_RC1 fails to load kernel on UMAX Apus2000/200
with OpenFirmware 2.0

Boot from ATA disk:
---
Open Firmware, 2.0
To continue booting the MacOS type:
BYE<return>
To continue booting from the default boot device type:
BOOT<return>
 ok
0 > boot 
OF_open bootpath=ata/ATA-Disk@0
read stage 2 blocks: 01234. done!
starting stage 2...

>> NetBSD/macppc OpenFirmware Boot, Revision 1.12
Cannot use bootpath
Using boot-device instead
DEFAULT CATCH!, code=FFF00300 at   %SRR0: 00E01F2C   %SRR1: 00003070 
 ok
0 > 
---

"Using boot-device instead" message is here:
 http://nxr.netbsd.org/xref/src/sys/arch/macppc/stand/ofwboot/boot.c?r=1.27#260
so it fails during parsing args or loading a kernel.

Boot 7.0_RC1 ISO from SCSI CD-ROM:
---
Open Firmware, 2.0
To continue booting the MacOS type:
BYE<return>
To continue booting from the default boot device type:
BOOT<return>
 ok
0 > boot scsi/sd@3:0 
OF_open bootpath=scsi/sd@3
read stage 2 blocks: 0. done!
starting stage 2...

>> NetBSD/macppc OpenFirmware Boot, Revision 1.12
DEFAULT CATCH!, code=FFF00300 at   %SRR0: 00E01F34   %SRR1: 00003070 
 ok
0 > 
---

ofwboot taken from NetBSD/macppc 6.1.5 works properly,
even with 7.0_RC1 primary /usr/mdec/bootxx.

>How-To-Repeat:
Install NetBSD/macppc 7.0_RC1 on OF2 machine and boot it.

>Fix:
Not investigated yet.  gcc 4.8.x issue?

>Release-Note:

>Audit-Trail:
From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: gnats-bugs@NetBSD.org
Cc: tsutsui@ceres.dti.ne.jp
Subject: Re: port-macppc/50018: macppc 7.0_RC1 ofwboot fails to load kernel
	 on OF2 machine
Date: Thu, 2 Jul 2015 02:12:32 +0900

 > >> NetBSD/macppc OpenFirmware Boot, Revision 1.12
 > Cannot use bootpath
 > Using boot-device instead
 > DEFAULT CATCH!, code=FFF00300 at   %SRR0: 00E01F2C   %SRR1: 00003070 

 0xE01F2C is in dealloc():
  http://nxr.netbsd.org/xref/src/sys/arch/macppc/stand/ofwboot/alloc.c?r=1.10#207

 Reverting Locore.c rev 1.25 (601 support) fixes this problem.
  http://mail-index.netbsd.org/source-changes/2014/02/26/msg052077.html
  http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/arch/macppc/stand/ofwboot/Locore.c#rev1.25

 Something wrong BAT mapping in 603 case?

 ---
 Izumi Tsutsui

From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: gnats-bugs@NetBSD.org
Cc: tsutsui@ceres.dti.ne.jp
Subject: Re: port-macppc/50018: macppc 7.0_RC1 ofwboot fails to load kernelon
	 OF2 machine
Date: Thu, 2 Jul 2015 02:40:42 +0900

 >  Reverting Locore.c rev 1.25 (601 support) fixes this problem.
 >   http://mail-index.netbsd.org/source-changes/2014/02/26/msg052077.html
 >   http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/arch/macppc/stand/ofwboot/Locore.c#rev1.25
 >  
 >  Something wrong BAT mapping in 603 case?

 Looks a careless bug in the rev.

 The following diff makes ofwboot work again.

 Index: Locore.c
 ===================================================================
 RCS file: /cvsroot/src/sys/arch/macppc/stand/ofwboot/Locore.c,v
 retrieving revision 1.25
 diff -u -p -d -r1.25 Locore.c
 --- Locore.c	26 Feb 2014 21:42:40 -0000	1.25
 +++ Locore.c	1 Jul 2015 17:34:46 -0000
 @@ -75,6 +75,7 @@ __asm(
  "       cmpi    0,1,%r0,0x02  	\n" /* 601 CPU = 0x0001 */
  "       blt     1f		\n" /* skip over non-601 BAT setup */
  	/*non PPC 601 BATs*/
 +"	li	%r0,0		\n"
  "	mtibatu	0,%r0		\n"
  "	mtibatu	1,%r0		\n"
  "	mtibatu	2,%r0		\n"
 @@ -93,7 +94,8 @@ __asm(
  "	b 2f			\n"

  	/* PPC 601 BATs*/
 -"1:	mtibatu	0,%r0		\n"
 +"1:	li	%r0,0		\n"
 +"	mtibatu	0,%r0		\n"
  "      	mtibatu 1,%r0           \n"
  "      	mtibatu 2,%r0           \n"
  "      	mtibatu 3,%r0           \n"


 ---
 Izumi Tsutsui

From: "Izumi Tsutsui" <tsutsui@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/50018 CVS commit: src/sys/arch/macppc/stand/ofwboot
Date: Sun, 26 Jul 2015 14:24:29 +0000

 Module Name:	src
 Committed By:	tsutsui
 Date:		Sun Jul 26 14:24:29 UTC 2015

 Modified Files:
 	src/sys/arch/macppc/stand/ofwboot: Locore.c

 Log Message:
 Don't set garbages into BAT registers, which was broken in rev 1.25.

 Should fix PR port-macppc/50018 (though there is no response for 3 weeks),
 and should be pulled up to netbsd-7.


 To generate a diff of this commit:
 cvs rdiff -u -r1.25 -r1.26 src/sys/arch/macppc/stand/ofwboot/Locore.c

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

From: "Martin Husemann" <martin@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/50018 CVS commit: [netbsd-7] src/sys/arch/macppc/stand/ofwboot
Date: Thu, 30 Jul 2015 10:22:12 +0000

 Module Name:	src
 Committed By:	martin
 Date:		Thu Jul 30 10:22:12 UTC 2015

 Modified Files:
 	src/sys/arch/macppc/stand/ofwboot [netbsd-7]: Locore.c

 Log Message:
 Pull up following revision(s) (requested by tsutsui in ticket #893):
 	sys/arch/macppc/stand/ofwboot/Locore.c: revision 1.26
 Don't set garbages into BAT registers, which was broken in rev 1.25.
 Should fix PR port-macppc/50018 (though there is no response for 3 weeks),
 and should be pulled up to netbsd-7.


 To generate a diff of this commit:
 cvs rdiff -u -r1.25 -r1.25.4.1 src/sys/arch/macppc/stand/ofwboot/Locore.c

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

State-Changed-From-To: open->feedback
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Sun, 06 Sep 2015 00:43:04 +0000
State-Changed-Why:
is this fully fixed?


From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: gnats-bugs@NetBSD.org
Cc: dholland@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: port-macppc/50018 (macppc 7.0_RC1 ofwboot fails to load kernel)
Date: Sun, 6 Sep 2015 14:09:45 +0900

 > is this fully fixed?

 Fixed confirmed on 603, but waiting feedback from
 the author (or persons who knows about the BAT settings)
 and other 601/604/750/74xx users.
 ---
 Izumi Tsutsui

State-Changed-From-To: feedback->open
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Sun, 06 Sep 2015 05:59:00 +0000
State-Changed-Why:
ok, close it when you're satisfied...


From: scole_mail <scole_mail@gmx.com>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-macppc/50018 (macppc 7.0_RC1 ofwboot fails to load kernel)
Date: Sun, 6 Sep 2015 10:54:12 -0400

 For the 601 this change works, though there still other changes needed
 in PR 48600 for the 601 to boot of the disk.

 Thanks

State-Changed-From-To: open->closed
State-Changed-By: scole@NetBSD.org
State-Changed-When: Thu, 06 Sep 2018 09:20:20 -0700
State-Changed-Why:
This looks like it can be closed.  If there are still issues feel free to re-open or submit another PR.  Thanks for finding and fixing!


>Unformatted:

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