linux-kernel - Re: Command "clinfo" causes BUG: kernel NULL pointer dereference, address: 0000000000000008 on driver amdgpu

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Date:   Tue, 19 Jul 2022 22:05:59 +0500
From:   Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
To:     Mike Lothian <mike@...eburn.co.uk>
Cc:     "Chen, Guchun" <Guchun.Chen@....com>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        Christian König <ckoenig.leichtzumerken@...il.com>
Subject: Re: Command "clinfo" causes BUG: kernel NULL pointer dereference,
 address: 0000000000000008 on driver amdgpu

On Tue, Jul 19, 2022 at 4:26 PM Mikhail Gavrilov
<mikhail.v.gavrilov@...il.com> wrote:
> In the kernel log there is no error so it is most likely a user space issue , but I am not
> sure about it.

But I am confused by the message in the kernel log:
[ 1962.000909] amdgpu: HIQ MQD's queue_doorbell_id0 is not 0, Queue
preemption time out
[ 1962.000912] amdgpu: Failed to evict process queues
[ 1962.000918] amdgpu: Failed to quiesce KFD
[ 1966.010395] amdgpu: HIQ MQD's queue_doorbell_id0 is not 0, Queue
preemption time out
[ 1966.010406] amdgpu: Resetting wave fronts (cpsch) on dev 00000000b40e7982


-- 
Best Regards,
Mike Gavrilov.