[Bug 68964] New: [Regression] Screen corruption in Chromium

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68964

          Priority: medium
            Bug ID: 68964
          Assignee: chris at chris-wilson.co.uk
           Summary: [Regression] Screen corruption in Chromium
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: bay at hackerdom.ru
          Hardware: Other
            Status: NEW
           Version: git
         Component: Driver/intel
           Product: xorg

Created attachment 85224
  --> https://bugs.freedesktop.org/attachment.cgi?id=85224&action=edit
The screenshot

This happens 4-5 times per day on average. Screen corrupts not only in
chromium, but also randomly in KDE workspace.

This happens especially often on http://cloud.feedly.com/ site.

Git bisect says that the first bad commit is
d935912d9c13ec8cf4f641c55846714d4e9ba929, 2013-07-09, sna: Free the source
reference after performing a BLT composite, -6/+14.

Reverting this commit in git master fixes this bug, but, probably, causes a
memory leak(bug 66742).

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