NetBSD Problem Report #58164

From www@netbsd.org  Wed Apr 17 17:05:42 2024
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Date: Wed, 17 Apr 2024 17:05:41 +0000 (UTC)
From: userm57@yahoo.com
Reply-To: userm57@yahoo.com
To: gnats-bugs@NetBSD.org
Subject: The NetBSD 10.0 installed kernel panics on Mac IIci unless there are no Nubus video cards installed
X-Send-Pr-Version: www-1.0

>Number:         58164
>Category:       kern
>Synopsis:       The NetBSD 10.0 installed kernel panics on Mac IIci unless there are no Nubus video cards installed
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Apr 17 17:10:00 +0000 2024
>Last-Modified:  Wed Apr 24 13:20:02 +0000 2024
>Originator:     Stan Johnson
>Release:        NetBSD 10.0
>Organization:
>Environment:
maciici-1: {2} uname -a
NetBSD maciici-1 10.0 NetBSD 10.0 (GENERICSBC) #0: Thu Mar 28 08:33:33 UTC 2024  mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/mac68k/compile/GENERICSBC mac68k
>Description:
The kernel that is installed as part of a NetBSD 10.0 installation on a Mac IIci will crash if there is an attempt to use a Nubus video card (such as the Toby Frame Buffer card). The netbsd-GENERICSBC.gz kernel works only using built-in video and with no other video cards installed.

Note that the NetBSD 10.0 installation kernel (netbsd-INSTALLSBC.gz) works as expected using a Nubus video card; it is only after installation that the installed kernel panics.
>How-To-Repeat:
1) Install NetBSD 10.0 on a Mac IIci (installation with video using an unaccelerated video card such as the Toby Frame Buffer card should work, or use built-in video).
2) The kernel of the newly-installed system will crash if using the Toby Frame Buffer card, or even if using built-in video if the Toby Frame Buffer card is installed.
3) The same result is seen with other unaccelerated video card, such as the RasterOps ColorBoard 264).
>Fix:
A workaround to the problem is to use built-in video with no Nubus video cards installed.

>Audit-Trail:
From: Stan Johnson <userm57@yahoo.com>
To: gnats-bugs@NetBSD.org
Cc: mac68k NetBSD <port-mac68k@NetBSD.org>
Subject: Re: kern/58164
Date: Sat, 20 Apr 2024 09:21:48 -0600

 This may be related to Problem Report 58164.

 If the default NetBSD 10.0 netbsd-GENERICSBC that panics whenever a
 Nubus video card (such as the Toby Frame Buffer) is used or installed is
 instead booted using the built-in video on the Mac IIci, it doesn't
 panic, but the memory as reported by dmesg is wrong, seeming to ignore
 all of Bank A. It's not clear (from /proc/meminfo) whether the memory
 may actually be available. Also, the memory reported for [system]
 appears to be too high.

 For example, with 64 MiB installed in Bank A and 16 MiB installed in
 Bank B, and booting the default NetBSD 10.0 netbsd-GENERICSBC kernel
 using the built-in video:

 # dmesg
 ...
 [     1.000000] Apple Macintosh IIci  (68030)
 [     1.000000] cpu: delay factor 266
 [     1.000000] fpu: mc68882
 [     1.000000] total memory = 16384 KB
 [     1.000000] avail memory = 75696 KB
 ...

 maciici-1# cat /proc/meminfo
         total:    used:    free:  shared: buffers: cached:
 Mem:  78381056 28704768 49676288        0  7733248 22650880
 Swap: 268427264        0 268427264
 MemTotal:     76544 kB
 MemFree:      48512 kB
 MemShared:        0 kB
 Buffers:      48512 kB
 Cached:       22120 kB
 SwapTotal:   262136 kB
 SwapFree:    262136 kB

 maciici-1# ps auxw
 USER    PID %CPU %MEM   VSZ   RSS TTY   STAT STARTED    TIME COMMAND
 root      0  0.1 183.5     0 30048 ?     DKl   7:32PM 0:16.26 [system]
 root      1  0.0 10.4  5712  1672 ?     Is    7:32PM 0:02.62 init
 root    341  0.0 15.6 11112  2536 ?     Ss    7:34PM 0:01.67
 /usr/sbin/syslogd -s
 root    595  0.0 10.6  5672  1720 ?     Is    7:36PM 0:00.47
 /usr/sbin/inetd -l
 root    609  0.0 29.9 11696  4880 ?     S     7:37PM 0:09.40 telnetd
 root    637  0.0 10.7  6224  1736 ?     Ss    7:36PM 0:00.61 /usr/sbin/cron
 johnson 638  0.0 12.5  6080  2032 pts/0 I     7:37PM 0:02.14 -csh
 root    639  0.0 32.9 12168  5368 pts/0 Is    7:37PM 0:15.75 login
 root    666  0.0 10.7  5808  1728 pts/0 O+    7:40PM 0:00.50 ps -auxw
 root    680  0.0 14.7  6416  2392 pts/0 I<    7:38PM 0:07.13 su - root
 root    687  0.0 13.4  6400  2168 pts/0 S     7:38PM 0:02.13 -sh
 root    679  0.0 10.3  5416  1664 ttyE0 Is+   7:37PM 0:00.76
 /usr/libexec/getty Pc constty

From: Stan Johnson <userm57@yahoo.com>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/58164
Date: Mon, 22 Apr 2024 15:06:39 -0600

 NetBSD 9.x also fails, but NetBSD 8.2 works.

From: Stan Johnson <userm57@yahoo.com>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/58164
Date: Wed, 24 Apr 2024 06:48:49 -0600

 Correction:
 In the dmesg and other output above, I had 64 MiB installed in Bank A
 and 16 MiB installed in Bank B, not the other way around.

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