On Linux slate 3.16.5-gentoo #6 SMP Sat Nov 22 11:43:01 CET 2014 x86_64 Intel(R) Pentium(R) CPU 997 @ 1.60GHz GenuineIntel GNU/Linux if frequently happens under X.org running (presumably triggered by firefox-bin) that first, large portions of the screen render black, a drop in performance, quickly followed by a deadlock (no SysReq will help). When the first signs of the issue occur, I manage to drop into TTY and kill firefox which usually stabilizes the situation. I can then grab dmesg and the error log, which you find attached. Clearly, I can't assert that they contain everything related to the freeze, since I can only obtain them if the actual freeze does not occur. I will try to reproduce the issue with current 3.18 mainline but can not promise that I'll again be as lucky as being able to grab the logs in the narrow window before the actual freeze.
Created attachment 109896 [details] dmesg after artefacts appear
Created attachment 109897 [details] device error dump after artefacts appear
Seems to have died after an SNA batch I think. Reassigning. Please retest with latest ddx release and attach Xorg.log.
The error is not the batch, but the execution.
I think, though without certainty, the issue is fixed in 3.18 or greater. I've been running 3.18 for a while and did not experience any problems or signs thereof.
Thanks for reporting back, tentatively closing this one.
Unfortunally not fixed. Attaching logs for 3.18.0-rc5
Created attachment 110513 [details] dmesg with 3.18
Created attachment 110514 [details] batch dump with 3.18
Created attachment 110515 [details] X.org.log wtih 3.18
Same issue, tries to execute a batch ends up somewhere entirely different.
Created attachment 110605 [details] [review] Detect GPU page faults This should hopefully catch the error earlier, and so might reveal more about the issue.
Timeout, closing. Please reopen if the problem persists with latest kernels.
Closing >1 year old resolved+invalid.
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