To: Koenig, Christian
Cc: Daniel Vetter ; dri-devel ; amd-gfx list ;
Linux List Kernel Mailing
Subject: Re: BUG: KASAN: null-ptr-deref in
drm_sched_job_cleanup+0x96/0x290 [gpu_sched]
On Thu, Apr 20, 2023 at 3:32 PM Mikhail Gavrilov
wrote:
Important don't give up.
https://youtu.be/25zhHBGIHJ8 [40 min
ing
Subject: Re: BUG: KASAN: null-ptr-deref in
drm_sched_job_cleanup+0x96/0x290 [gpu_sched]
On Thu, Apr 20, 2023 at 3:32 PM Mikhail Gavrilov
wrote:
Important don't give up.
https://youtu.be/25zhHBGIHJ8 [40 min]
https://youtu.be/utnDR26eYBY [50 min]
https://youtu.be/DJQ_tiimW6g [12 min]
https://youtu
Cc: Daniel Vetter ; dri-devel de...@lists.freedesktop.org>; amd-gfx list ;
> Linux List Kernel Mailing
> Subject: Re: BUG: KASAN: null-ptr-deref in
> drm_sched_job_cleanup+0x96/0x290 [gpu_sched]
>
> On Thu, Apr 20, 2023 at 3:32 PM Mikhail Gavrilov
> wrote:
> >
>
On Thu, Apr 20, 2023 at 3:32 PM Mikhail Gavrilov
wrote:
>
> Important don't give up.
> https://youtu.be/25zhHBGIHJ8 [40 min]
> https://youtu.be/utnDR26eYBY [50 min]
> https://youtu.be/DJQ_tiimW6g [12 min]
> https://youtu.be/Y6AH1oJKivA [6 min]
> Yes the issue is everything reproducible, but time
On Thu, Apr 20, 2023 at 2:59 PM Christian König
wrote:
> Could you try drm-misc-next as well?
If as I assume I cloned right repo
$ git clone -b drm-misc-next
git://anongit.freedesktop.org/drm/drm-misc linux-drm-misc-next
for my hardware last commit on this branch is turned out completely
On Thu, Apr 20, 2023 at 2:59 PM Christian König
wrote:
>
> Could you try drm-misc-next as well?
>
> Going to give drm-fixes another round of testing.
>
> Thanks,
> Christian.
Important don't give up.
https://youtu.be/25zhHBGIHJ8 [40 min]
https://youtu.be/utnDR26eYBY [50 min]
Am 19.04.23 um 21:17 schrieb Mikhail Gavrilov:
On Wed, Apr 19, 2023 at 6:15 PM Christian König
wrote:
Well exactly that's the problem, I can't reproduce it.
Have you applied any local change or config which could explain that?
I did not apply any local changes.
I just pulled all changes
Am 19.04.23 um 15:13 schrieb Mikhail Gavrilov:
On Wed, Apr 19, 2023 at 1:12 PM Christian König
wrote:
I'm already looking into this, but can't figure out why we run into
problems here.
What happens is that a CS is aborted without sending the job to the
scheduler and in this case the cleanup
On Wed, Apr 19, 2023 at 1:12 PM Christian König
wrote:
>
> I'm already looking into this, but can't figure out why we run into
> problems here.
>
> What happens is that a CS is aborted without sending the job to the
> scheduler and in this case the cleanup function doesn't seem to work.
>
>
Am 19.04.23 um 09:00 schrieb Mikhail Gavrilov:
Christian?
I'm already looking into this, but can't figure out why we run into
problems here.
What happens is that a CS is aborted without sending the job to the
scheduler and in this case the cleanup function doesn't seem to work.
Christian?
❯ /usr/src/kernels/6.3.0-0.rc7.56.fc39.x86_64/scripts/faddr2line
/lib/debug/lib/modules/6.3.0-0.rc7.56.fc39.x86_64/kernel/drivers/gpu/drm/scheduler/gpu-sched.ko.debug
drm_sched_job_cleanup+0x9a
drm_sched_job_cleanup+0x9a/0x130:
drm_sched_job_cleanup at
Adventure
>
> Firstly after some time (may be after several attempts) appears bug
> message from KASAN:
> ==================
> BUG: KASAN: null-ptr-deref in drm_sched_job_cleanup+0x96/0x290 [gpu_sched]
> Read of size 4 at addr 0
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