linux-kernel - Re: [BUG] Warning and NULL-ptr dereference in amdgpu driver with 5.18

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Message-Id: <505081FC-4323-4424-87A9-89B95A89515D@suse.de>
Date:   Tue, 10 May 2022 20:17:38 +0200
From:   Jörg Rödel <jroedel@...e.de>
To:     Alex Deucher <alexdeucher@...il.com>
Cc:     "Wentland, Harry" <Harry.Wentland@....com>,
        "Siqueira, Rodrigo" <Rodrigo.Siqueira@....com>,
        "Kazlauskas, Nicholas" <nicholas.kazlauskas@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian Koenig <christian.koenig@....com>,
        xinhui pan <Xinhui.Pan@....com>,
        David Airlie <airlied@...ux.ie>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [BUG] Warning and NULL-ptr dereference in amdgpu driver with 5.18


> Am 10.05.2022 um 17:31 schrieb Alex Deucher <alexdeucher@...il.com>:
> 
> On Tue, May 10, 2022 at 7:12 AM Jörg Rödel <jroedel@...e.de> wrote:
>> 
>> Gentle ping. This is a 5.18 regression and I also see it with
>> 5.18-rc6. Please let me know if you need anything else to debug.
>> 
> 
> Are you doing anything special when it happens?  I.e., does it happen
> when the monitor is coming out of DPMS or something like that?
> 

Yes, it usually happens when I return to the machine and press some button on the keyboard to get the screens enabled again. It doesn’t happen always, it seems to depend on how slow the monitors come out of power saving mode.

Regards,

Jörg Rödel
jroedel@...e.de

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