[Bug 86765] New: [drm:ring_stuck] *ERROR* Kicking stuck semaphore on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86765

            Bug ID: 86765
           Summary: [drm:ring_stuck] *ERROR* Kicking stuck semaphore on
                    render ring
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: minor
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: biovore at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 110111
  --> https://bugs.freedesktop.org/attachment.cgi?id=110111&action=edit
GPU crash dump saved to /sys/class/drm/card0/error

Experianced a XOrg hang with a this message showing up DMESG.
Intel 2nd Generation Core 2 intel video (Intel(R) Pentium(R) CPU G850 @
2.90GHz)
C200/H61 Chipset. (Onboard video)

Debug attached if someone wants to look at it.

Ubuntu 14.04

Linux kb3gtn-ham 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux

A switch to TTY0 and back to graphical mode seem to make it recover.

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