Bug 110732 - [snb] GPU hangs in Xorg (coincides with CPU clock throttling).
Summary: [snb] GPU hangs in Xorg (coincides with CPU clock throttling).
Status: NEW
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/i965 (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Intel 3D Bugs Mailing List
QA Contact: Intel 3D Bugs Mailing List
Depends on:
Reported: 2019-05-22 17:12 UTC by Ben Whitney
Modified: 2019-05-22 22:29 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Excerpt of `/var/log/syslog`. (18.83 KB, text/plain)
2019-05-22 17:12 UTC, Ben Whitney
Compressed GPU crash dump (`/sys/class/drm/card0/error`). (141.24 KB, application/gzip)
2019-05-22 17:14 UTC, Ben Whitney
System information. (20.45 KB, text/plain)
2019-05-22 17:14 UTC, Ben Whitney

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Description Ben Whitney 2019-05-22 17:12:50 UTC
Created attachment 144321 [details]
Excerpt of `/var/log/syslog`.

My computer sometimes turns off when I max out* all its CPUs for more than a few minutes. I would estimate that it turns off something like 1 out of 10 times when the CPUs are maxed out for more than five minutes, with the probability increasing with the amount of time under load. It happens pretty reliably (maybe 2 out of 3 times? more often?) when they're working for more than an hour. Normally when it turns off I just rerun my job with fewer CPUs, but this time I opened up the system log and found a report of a GPU hang. I'm attaching part of the system log, the GPU crash dump, and some system information. Please let me know if there's more information I can provide.

* By this I mean that `top` reports CPU usage at or near 100%. I doubt that much of what I'm doing is CPU-bound.
Comment 1 Ben Whitney 2019-05-22 17:14:07 UTC
Created attachment 144322 [details]
Compressed GPU crash dump (`/sys/class/drm/card0/error`).
Comment 2 Ben Whitney 2019-05-22 17:14:22 UTC
Created attachment 144323 [details]
System information.

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