linux-kernel - Re: BUG: KASAN: null-ptr-deref in drm_sched_job_cleanup+0x96/0x290 [gpu

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Message-ID: <CABXGCsP2JQMtNjBROSLs2y612iLZuCyoe-uD6OScAWbKHBWsCA@mail.gmail.com>
Date:   Thu, 20 Apr 2023 00:17:14 +0500
From:   Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
To:     Christian König <ckoenig.leichtzumerken@...il.com>
Cc:     amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        Christian König <Christian.Koenig@....com>,
        Daniel Vetter <daniel.vetter@...ll.ch>
Subject: Re: BUG: KASAN: null-ptr-deref in drm_sched_job_cleanup+0x96/0x290 [gpu_sched]

On Wed, Apr 19, 2023 at 6:15 PM Christian König
<ckoenig.leichtzumerken@...il.com> 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 from drm-fixes and used the attached config.
After that I am lucky to reproduce the issue after 3 minutes.
I recorded this on video with first take: https://youtu.be/wqD_t8AFU3s
I able to reproduce it on various hardware:
Ryzen 3950X + 7900XTX
Ryzen 7950X + 6900XT
Ryzen 5900HX + 6800M

-- 
Best Regards,
Mike Gavrilov.

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