[Bug 54226] [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54226

--- Comment #191 from arrowsmith at pythian.com ---
What information is most useful for these repeating issues, as it just happened
again:

 Sep 16 08:32:59 arrowsmithlap1 kernel: [1182242.139690] [drm] stuck on render
ring
 Sep 16 08:32:59 arrowsmithlap1 kernel: [1182242.139699] [drm] stuck on blitter
ring
 Sep 16 08:32:59 arrowsmithlap1 kernel: [1182242.140239] [drm] GPU HANG: ecode
0:0xf4e9fffe, in Xorg [26353], reason: Ring hung, action: reset
 Sep 16 08:32:59 arrowsmithlap1 kernel: [1182242.140750]
[drm:i915_context_is_banned] *ERROR* gpu hanging too fast, banning!
 Sep 16 08:32:59 arrowsmithlap1 kernel: [drm] stuck on render ring
 Sep 16 08:32:59 arrowsmithlap1 kernel: [drm] stuck on blitter ring
 Sep 16 08:32:59 arrowsmithlap1 kernel: [drm] GPU HANG: ecode 0:0xf4e9fffe, in
Xorg [26353], reason: Ring hung, action: reset
 Sep 16 08:32:59 arrowsmithlap1 kernel: [drm:i915_context_is_banned] *ERROR*
gpu hanging too fast, banning!
 Sep 16 08:33:01 arrowsmithlap1 kernel: [1182244.142445] [drm] Enabling RC6
states: RC6 on, RC6p off, RC6pp off
 Sep 16 08:33:01 arrowsmithlap1 kernel: [drm] Enabling RC6 states: RC6 on, RC6p
off, RC6pp off

The only thing under my /etc/X11/xorg.conf.d/ is 00-keyboard.conf (system
generated).

Do you want a copy of /sys/class/drm/card0/error every time?

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