[Bug 104274] Unable to cleanly unload kernel module: BUG: unable to handle kernel NULL pointer dereference at 0000000000000258 (mutex_lock)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104274

Michel Dänzer <michel at daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |harry.wentland at amd.com,
                   |                            |jordan.lazare at amd.com

--- Comment #2 from Michel Dänzer <michel at daenzer.net> ---
The problem in the original report was fixed by
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a072c5f896beba806b4b867d478e1b90f94ba29b
.

Comment 1 looks like a new issue in DC. Looks like this might be related to the
core DRM code now only initializing fbdev compatibility when a display
connection is detected, like the change above.

Sverd, until the latter is fixed, maybe you can try if amdgpu.dc=0 helps.

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