On 7/19/19 3:54 PM, Evilham wrote:
>
> Serious issue:
> I was just debugging this right now, more infos with a proper bug
> report will come, but I think the system encounters a deadlock
> sometimes with the drm-kmod / amdgpu which results in a kernel panic.
> It is a serious issue, but it allows me to use the computer for work,
> it doesn't happen every couple hours, but it does happen a couple
> times a day.
>
> FWIW, this is part of the crashlog:
>
> WARNING !drm_modeset_is_locked(&plane->mutex) failed at
> /wrkdirs/usr/ports/graphics/drm-fbsd12.0-kmod/work/kms-drm-6365030/drivers/gpu/drm/drm_atomic_helper.c:821
> [Multiple times...]
> kernel trap 22 with interrupts disabled
>                            kernel trap 22 with interrupts
>                            disabled
> kernel trap 22 with interrupts disabled
> kernel trap 22 with interrupts disabled
>    panic: spin lock held too long
>

interesting.  can you post this kernel panic, and any backtraces you are
able to get here:

https://github.com/FreeBSDDesktop/kms-drm/issues

also, are you using the xf86-video-amdgpu driver, or the stock
modesetting driver to X?


thanks!

-pete


-- 
Pete Wright
p...@nomadlogic.org
310.309.9298

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