linux-kernel - Re: [Intel-gfx] [v4.6-10530-g28165ec7a99b] i915: *ERROR* "CPU pipe/PCH transcoder" A FIFO underrun

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: <CA+icZUURnK_+XjSPd3a9HHnr+EK1YJbf5Wyk-86nW-Cv6JVkLg@mail.gmail.com>
Date:	Sat, 28 May 2016 09:57:45 +0200
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	Chris Bainbridge <chris.bainbridge@...il.com>
Cc:	Daniel Vetter <daniel.vetter@...ll.ch>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Intel-gfx] [v4.6-10530-g28165ec7a99b] i915: *ERROR* "CPU
 pipe/PCH transcoder" A FIFO underrun

On 5/27/16, Chris Bainbridge <chris.bainbridge@...il.com> wrote:
> On 25 May 2016 at 08:31, Sedat Dilek <sedat.dilek@...il.com> wrote:
>> Hi Daniel,
>>
>> with latest Linus Git I see this with my Intel SandyBridge GPU...
>>
>> [   17.629014] [drm:intel_cpu_fifo_underrun_irq_handler [i915]]
>> *ERROR* CPU pipe A FIFO underrun
>> [   17.630652] [drm:intel_set_pch_fifo_underrun_reporting [i915]]
>> *ERROR* uncleared pch fifo underrun on pch transcoder A
>> [   17.630685] [drm:intel_pch_fifo_underrun_irq_handler [i915]]
>> *ERROR* PCH transcoder A FIFO underrun
>
> Guessing this is https://bugs.freedesktop.org/show_bug.cgi?id=95736
>

Thanks for the hint!

Did you try with reverting this "first bad" commit mentionned in your
BR (or a "series of commits")?

- Sedat -