[Bug 74053] [ivb] hang on rcs pageflip

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74053

--- Comment #14 from Enrico Tagliavini <enrico.tagliavini at gmail.com> ---
Created attachment 93514
  --> https://bugs.freedesktop.org/attachment.cgi?id=93514&action=edit
yet another crash dump

I'm affected as well. Running gentoo, happened with kernel 3.11, 3.12, 3.13 for
sure, video-intel 2.21.15, 2.99.907, 2.99.909 (all with SNA enabled), mesa
9.2.5

dmesg:

[  763.125484] [drm] stuck on render ring
[  763.125485] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  763.125485] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  763.125486] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  763.125486] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  763.125486] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.

~ # cat /sys/kernel/debug/dri/0/i915_fbc_status
FBC disabled: multiple pipes are enabled

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