From: Chris Wilson <chris@chris-wilson.co.uk>
To: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: Hangcheck does not work on SNB?
Date: Mon, 02 Apr 2012 09:34:19 +0100 [thread overview]
Message-ID: <1333355680_197921@CP5-2952> (raw)
In-Reply-To: <20120402081231.GD4226@ics.muni.cz>
On Mon, 2 Apr 2012 10:12:31 +0200, Lukas Hejtmanek <xhejtman@ics.muni.cz> wrote:
> On Mon, Apr 02, 2012 at 08:32:50AM +0100, Chris Wilson wrote:
> > Even after you stop the video? All it sounds like so far is that it is no
> > longer rendering video frames. Also check your Xorg.log and video player
> > for diagnostics.
>
> Xorg.log contains (however this may be consequence of SAK (sysrq-k)):
>
> [157714.590] 10: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x28) [0x7f57cdaf11a8]
> [157714.590] 11: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f57cd5fa000+0x374ee) [0x7f57cd6314ee]
> [157714.590] 12: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f57cd5fa000+0x6789a) [0x7f57cd66189a]
> [157714.590] 13: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f57cd5fa000+0x42bca) [0x7f57cd63cbca]
> [157714.590] 14: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f57cd5fa000+0x55dee) [0x7f57cd64fdee]
> [157714.590] 15: /usr/bin/X (BlockHandler+0x4a) [0x7f57d132c51a]
>
> And I am unable to stop the video, X session is completely dead so I don't
> even see if and what mplayer complains about.
>
> It seems that the video suddenly slows down and then stops completely but I am
> not 100% sure about this.
Ok, this sounds more like a silent GPU death. We'll have to hit the
manual reset and see whether we can glean any useful info:
echo 1 > /sys/kernel/debug/dri/0/i915_wedged
But before you do, can you have a quick look with intel_gpu_top and see
if it detects any activity?
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
prev parent reply other threads:[~2012-04-02 8:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-01 23:00 Hangcheck does not work on SNB? Lukas Hejtmanek
2012-04-02 7:32 ` Chris Wilson
2012-04-02 8:12 ` Lukas Hejtmanek
2012-04-02 8:34 ` Chris Wilson [this message]
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