intel GPU hangs

[Andrey Kosachenko]

Hi, Konstantin,

Occasionally, I observed strange behavior of X server: suddenly 
different widgets and window elements get garbled colors. In a minute or 
two the whole screen is filled with many colorful artifacts. It is 
possible to finalize all tasks gracefully in order to  restart X (this 
seem to be the only way to recover). X.org.log contains single EE record 
(sorry, didn't remember it literally but smth. like: "GPU hang detected").

I'll send you (off-list due to the size) contents of 
hw.dri.0.info.i915_error_state and ktrdump.

Please, let me know if you are interested in such a report or(and) in 
case you will require additional info.

thanks!

--
WBR,
Andrey Kosachenko