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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [SNB Bisected]igt/gem_reset_stats/close-pending-fork-render causes system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=74100#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [SNB Bisected]igt/gem_reset_stats/close-pending-fork-render causes system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=74100">bug 74100</a>
from <span class="vcard"><a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> <span class="fn">Daniel Vetter</span></a>
</span></b>
<pre>Ok, I've cleaned up the superflous SKIP behaviour and some other stuff in the
testcase. And I can repro the issue here. Looking at netconsole the system
seems to go down with a failed gpu reset:
[ 63.823960] [drm] stuck on render ring
[ 63.824130] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 63.824847] [drm] GPU HANG [e77fffff]
[ 63.824893] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 63.824979] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 63.825057] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 63.825138] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 63.825978] [drm] Simulated gpu hang, resetting stop_rings
[ 65.805203] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
[ 71.812051] [drm] stuck on blitter ring
[ 72.316616] [drm:i915_reset] *ERROR* Failed to reset chip: -110
That shouldn't really happen ...</pre>
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