[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: Wed, 22 Feb 2023 18:47:54 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266315

--- Comment #42 from Paul Dufresne <dufresnep@zoho.com> ---
This would help to figure out problem with sna acceleration but not so much for
GPU hang, because GPU hang have no clear point of failure...

What would help maybe with GPU hang is:
sysctl compat.linuxkpi.drm_debug:1

Maybe lower:
sys.class.drm.card0.engine.rcs0.heartbeat_interval_ms

like:
sys.class.drm.card0.engine.rcs0.heartbeat_interval_ms:1000
each second, rather than each 2.5 second (2500 ms)

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