Comment 6 for bug 2039167

amdgpu.mcbp=0

Does not work for me.

On Mon, Jan 22, 2024 at 7:51 PM samuelbailey <email address hidden>
wrote:

> Not completely sure whether this is an identical issue, but at the very
> least looks very similar, I was seeing:
>
> UBSAN: array-index-out-of-bounds in /build/linux-hwe-6.5-q7NZ0T/linux-
>
> hwe-6.5-6.5.0/drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/vega10_processpptables.c:621:5
>
> A workaround appears to have been found here:
> https://bugzilla.kernel.org/show_bug.cgi?id=201957#c94
>
> Setting the kernel parameter amdgpu.mcbp=0 appears to have stopped the
> crashing for me.
>
> ** Bug watch added: Linux Kernel Bug Tracker #201957
> https://bugzilla.kernel.org/show_bug.cgi?id=201957
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (2049971).
> https://bugs.launchpad.net/bugs/2039167
>
> Title:
> I get this message "array-index-out-of-bounds" every time I turn on
> my laptop since I upgraded from 23.04. to 23.10.
> (drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/processpptables.c)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2039167/+subscriptions
>
>