[Bug 56940] New: x-server segfault in X(CompositeRects)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=56940

          Priority: medium
            Bug ID: 56940
          Assignee: xorg-driver-ati at lists.x.org
           Summary: x-server segfault in X(CompositeRects)
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: igor.vagulin at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/Radeon
           Product: xorg

Created attachment 69842
  --> https://bugs.freedesktop.org/attachment.cgi?id=69842&action=edit
xorg log with brief backtrace

steps to reproduce:
- start x-server with glamor enabled
- start firefox

result:
firefox render blank window just after that x-server crashes

Unfortunately I was unable to generate good backtrace: I don't have another
machine to ssh, when I run with NoTrapSignals machine hangs and don't produce
crashdump.

some info
gentoo
hd7850
glamor-0.5
xf86-video-ati-7.0
mesa-9.0
libdrm-2.4.40
kernel-3.6.6

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