linux-kernel - Re: [REGRESSION] omapdrm/N900 display broken

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <8010e452-745a-ac12-bc02-5537305c70ed@gmail.com>
Date:   Fri, 27 Nov 2020 15:10:48 +0200
From:   Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
To:     Tomi Valkeinen <tomi.valkeinen@...com>,
        Aaro Koskinen <aaro.koskinen@....fi>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        ML dri-devel <dri-devel@...ts.freedesktop.org>
Cc:     Tony Lindgren <tony@...mide.com>, linux-omap@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION] omapdrm/N900 display broken



On 27.11.20 г. 13:45 ч., Tomi Valkeinen wrote:
> On 27/11/2020 01:17, Ivaylo Dimitrov wrote:
>> Hi Tomi,
>>
>> On 26.11.20 г. 16:11 ч., Tomi Valkeinen wrote:
>>> Hi Aaro, Ivaylo,
>>>
>>> On 24/11/2020 23:03, Ivaylo Dimitrov wrote:
>>>
>>>> Is there any progress on the issue? I tried 5.9.1 and still nothing displayed.
>>>
>>> Can you test the attached patch?
>>>
>>
>> With this patch I don't see oops that Aaro reported, so:
>>
>> Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
>>
>> Seems to fix the particular issue, however, now we get another oops. As this is not upstream kernel
>> but one with PVR related patches, I will try again with vanilla 5.9.
>>
>> Just in case oops rings any bells (the line in question is
>> https://github.com/maemo-leste/droid4-linux/blob/maemo-5.9/drivers/gpu/drm/omapdrm/omap_gem.c#L801)
> 
> Do the PVR patches touch omapdrm? The call stack looks like normal boot time probing stuff, not
> something happening later (possibly from PVR).
> 

pvr driver is not even enabled in that particular config, however, I see 
"HACK: drm/omap: Add omapdrm plugin API" patch in the tree that touches 
omap-gem.c, I don't really want to just create some noise for problems 
that are created by out-of-tree patches. And yeah, it looks like a 
normal boot time probing stuff. As soon as I have some spare time 
(hopefully later today) I will try vanilla 5.9.x with 
omap2plus_defconfig and will report.

Ivo