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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [snb] GTT mapping fails after GPU hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63921#c56">Comment # 56</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [snb] GTT mapping fails after GPU hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63921">bug 63921</a>
from <span class="vcard"><a class="email" href="mailto:nicolashillegeer@gmail.com" title="Nicolas Hillegeer <nicolashillegeer@gmail.com>"> <span class="fn">Nicolas Hillegeer</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=63921#c55">comment #55</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=79765" name="attach_79765" title="i915_error_state2 after 32 concurrent video playback soft crash (could still access dmesg and debugfs)">attachment 79765</a> <a href="attachment.cgi?id=79765&action=edit" title="i915_error_state2 after 32 concurrent video playback soft crash (could still access dmesg and debugfs)">[details]</a></span>
> i915_error_state2 after 32 concurrent video playback soft crash (could still
> access dmesg and debugfs)</span >
So finally I have an i915_error_state. I was lucky to have it soft crash this
time. This was obtained through
$ cat /sys/kernel/debug/dri/0/i915_error_state2 > /home/user/i915_error_state
&& gzip /home/user/i915_error_state
kernel: 3.9.3 with Mika's first patch
libva: 1.2.0.pre1
intel-driver (vaapi): 1.1.0.pre1
vaapi version: 0.34.0
intel-xorg-driver: 2.21.7
P.S.: dmesg output:
[ 6.232455] [drm] Initialized drm 1.1.0 20060810
[ 6.558826] [drm] Memory usable by graphics device = 2048M
[ 6.604230] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 6.604234] [drm] Driver supports precise vblank timestamp query.
[ 6.627854] [drm] Wrong MCH_SSKPD value: 0x16040307
[ 6.627859] [drm] This can cause pipe underruns and display issues.
[ 6.627861] [drm] Please upgrade your BIOS to fix this.
[ 6.645302] fbcon: inteldrmfb (fb0) is primary device
[ 6.874096] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 6.879106] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor
0
[ 7.823019] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
[ 4342.301602] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU
hung
[ 4342.301617] [drm] capturing error event; look for more information
in/sys/kernel/debug/dri/0/i915_error_state
[ 4454.300480] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU
hung
[ 4454.804436] [drm:i915_reset] *ERROR* Failed to reset chip.</pre>
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