[Bug 73351] New: xf86-video-intel-2.99.907 segfaults while the machine is unattended

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73351

          Priority: medium
            Bug ID: 73351
          Assignee: chris at chris-wilson.co.uk
           Summary: xf86-video-intel-2.99.907 segfaults while the machine
                    is unattended
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: mike.auty at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/intel
           Product: xorg

Created attachment 91591
  --> https://bugs.freedesktop.org/attachment.cgi?id=91591&action=edit
Xorg.0.log for the crashed session

I'm running into the following segfault every morning, after I've left my
machine unattended at night.  The monitor is switched off (which also powers
the graphics tablet), and when I return the next morning I'm met with the
segfault, which I've attached gdb to and recorded a "bt full" of the crash. 
The timings on this log will be wrong, because gdb trapped the segfault and
didn't start again until this morning, but I can get the right timings tonight,
if that would be useful?

This happened with 2.99.906 as well as 2.99.907, however I believe it did not
fail with 2.99.905.  I should also note that I had been using 2.99.906 since
late November, but only started to experience problems after I upgraded to
gnome-3.10.2 over the Christmas period.

I'm attaching my Xorg.0.log.old (from after the crash and X restarted), and the
gdb "bt full" output.  Please let me know if there's any further patches or
tests I can conduct, but understand I can only reliably reproduce this
overnight.

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