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From:   Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Date:   Wed, 19 Apr 2023 18:13:40 +0500
Message-ID: <CABXGCsPcPY8dqZm0aF4c1p0ZvMYHy+NksMrZi9xK0=WdE5_osA@mail.gmail.com>
Subject: Re: BUG: KASAN: null-ptr-deref in drm_sched_job_cleanup+0x96/0x290 [gpu_sched]
To:     =?UTF-8?Q?Christian_K=C3=B6nig?= <ckoenig.leichtzumerken@gmail.com>
Cc:     amd-gfx list <amd-gfx@lists.freedesktop.org>,
        dri-devel <dri-devel@lists.freedesktop.org>,
        Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
        =?UTF-8?Q?Christian_K=C3=B6nig?= <Christian.Koenig@amd.com>,
        Daniel Vetter <daniel.vetter@ffwll.ch>
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On Wed, Apr 19, 2023 at 1:12=E2=80=AFPM Christian K=C3=B6nig
<ckoenig.leichtzumerken@gmail.com> 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.
>
> Christian.

I can easily reproduce it on any AMD GPU hardware.
You can add more logs to debug and I return with new logs which explains th=
is.
Thanks.

--=20
Best Regards,
Mike Gavrilov.