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Date:      Mon, 06 Mar 2023 18:15:30 +0000
From:      bugzilla-noreply@freebsd.org
To:        fs@FreeBSD.org
Subject:   [Bug 267028] kernel panics when booting with both (zfs,ko or vboxnetflt,ko or acpi_wmi.ko) and amdgpu.ko
Message-ID:  <bug-267028-3630-0uuX4s1KV9@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-267028-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-267028-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D267028

--- Comment #95 from George Mitchell <george@m5p.com> ---
Created attachment 240622
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D240622&action=
=3Dedit
Another crash summary; looks like all the earlier ones

Quick summary: I can't cause this crash on my test setup (amdgpu but no ZFS)
over close to 50 tries.

In more detail: I deleted all ports from my test setup and then added
drm-510-kmod and gpu-firmware-amd-kmod, and (most importantly) gdb.  I then
made many fruitless attempts to reproduce the crash.  Experimentally, I add=
ed
"zfs" to my mod_list in /etc/rc.conf and got another instance of the crash
after 11 attempts (see attachment).  This crash looks like all the ones fro=
m my
regular setup, but at least it appears to be in the right format to get a
backtrace, etc.

I then took "zfs" out of my mod_list and tried another 20 times to get the
crash to recur.  It did not recur.

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