[Bug 80199] [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80199

--- Comment #3 from Kees Bakker <kees.bakker at xs4all.nl> ---
Is it OK to attach my card0/error here too? Or should I open a new bug report?
I'm seeing this error since a few weeks now, probably since I installed Ubuntu
14.04
(which has kernel 3.10.x). In the meantime I installed 3.14 and 3.15 but the
bug keeps popping up. Here is a syslog from a few moments ago.

When this happens I see some windows show funny characters, and some other
artefacts. And the system is inresponsive for a few seconds.

Jul 13 21:15:40 rapper kernel: [258170.239604] [drm] stuck on render ring
Jul 13 21:15:40 rapper kernel: [258170.240267] [drm] GPU HANG: ecode
0:0xf5fffffe, in Xorg [1854], reason: Ring hung, action: reset
Jul 13 21:15:40 rapper kernel: [258170.240269] [drm] GPU hangs can indicate a
bug anywhere in the entire gfx stack, including userspace.
Jul 13 21:15:40 rapper kernel: [258170.240270] [drm] Please file a _new_ bug
report on bugs.freedesktop.org against DRI -> DRM/Intel
Jul 13 21:15:40 rapper kernel: [258170.240270] [drm] drm/i915 developers can
then reassign to the right component if it's not a kernel issue.
Jul 13 21:15:40 rapper kernel: [258170.240271] [drm] The gpu crash dump is
required to analyze gpu hangs, so please always attach it.
Jul 13 21:15:40 rapper kernel: [258170.240272] [drm] GPU crash dump saved to
/sys/class/drm/card0/error
Jul 13 21:15:42 rapper kernel: [258172.242543] [drm] Enabling RC6 states: RC6
on, RC6p on, RC6pp off

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