[Bug 58107] New: [sna gm45] Lockups in X on 2.20.15

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=58107

          Priority: medium
            Bug ID: 58107
          Assignee: chris at chris-wilson.co.uk
           Summary: [sna gm45] Lockups in X on 2.20.15
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: el at prans.net
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/intel
           Product: xorg

My gm45-based system began to lock up in X randomly ever since upgrading to
2.20.  VT switch sometimes works and sometimes it doesn't.  Attempts to restart
X lock up the system hard.   I was finally able to capture *some* information
in the logs.  intel_gpu_abrt output is attached.  Unfortunately, cat
/sys/kernel/debug/dri/0/i915_error_state failed with memory allocation error. 
It did contain some information after a reboot, although I'm not sure if it's
useful.  Also attached.

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