[Bug 259670] graphics/drm-510-kmod: sporadic GPU hang with i915kms

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259670

--- Comment #21 from Peter Much <pmc@citylink.dinoex.sub.org> ---
(In reply to Graham Perrin from comment #20)
This did not happen anymore recently, probably because of either
 * moving along with STABLE, or
 * having a (crude but somehow working) patch&workaround for the primary source
of troube, which is iwlwifi (as discussed in bug263613 and a bunch of others.
That one appears to have some difficulty with separating duties between
linuxkpi and native code, and apparently produces strangely invalid objects in
the kernel.) I'm now strictly unloading/reloading that module in any case of
doubt, and things are better.

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