[Bug 266315] linuxkpi panic after recent updates (13.1-STABLE #0 stable/13-9cbba5950: Wed Sep 7 23:42:41 CEST 2022)

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 20 Feb 2023 13:06:37 UTC

--- Comment #15 from Oleh Vinichenko <moonlapse81@gmail.com> ---
now, that i updated to FreeBSD-CURRENT for testing purposes, i had less
frequents hangs with master branch of drm-kmod ( which was linux-5.12.x ).
Now, after, drm-kmod update to linux-5.15.x hangs and GPU resets returned.
System freezes and only hard reset required to bring system back.
Only thing i seeing is:
drmn0: [drm] GPU HANG: ecode 6:1:0ffe0000, in Renderer [101196]
drmn0: [drm] Resetting chip for stopped heartbeat on rcs0
drmn0: [drm] Renderer[101196] context reset due to GPU hang
Notice, that i already reported this in:


To me this looks like a grave issue, which is not fully addressed and simple
updates to newer linux graphic stack would not help. Since, it is really hard
to get meaningful information and ability to debug by regular users, i propose
this issues, which are quite common, to be reported to FreeBSD foundation/core
developers as it looks like subtle bug within FreeBSD linuxkpi layer.

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