Date: Sun, 11 Dec 2022 17:38:02 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 267028] General protection fault kernel panic immediately after kldload amdgpu Message-ID: <bug-267028-227-OKDMfKVuyc@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-267028-227@https.bugs.freebsd.org/bugzilla/> References: <bug-267028-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D267028 --- Comment #20 from George Mitchell <george@m5p.com> --- I've figured out why this crash is timing related, and also why ZFS is involved. My system has a 1 TB USB disk, which contains a ZFS file system. When I po= wer my system on, it takes a variable amount of time for that disk to become re= ady and for ZFS to take note of it. (I'm booting from a SATA disk with a traditional old UFS file system.) So if the USB disk becomes ready while amdgpu is still initializing, apparently this crash happens. I have no clue why that is true, but I am pretty sure this explains why the the crash happ= ens only part of the time and is timing dependent. It remains true that the most reliable way to cause the crash is to include amdgpu in the kld_list in /etc/rc.conf and simply boot normally (and to hav= e a *ZFS-formatted USB* disk attached to the system). --=20 You are receiving this mail because: You are the assignee for the bug.=
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