[Bug 67977] New: GPU lockups after upgrading to 7.2.0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67977

          Priority: medium
            Bug ID: 67977
          Assignee: xorg-driver-ati at lists.x.org
           Summary: GPU lockups after upgrading to 7.2.0
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: tim.besard at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/Radeon
           Product: xorg

Created attachment 83919
  --> https://bugs.freedesktop.org/attachment.cgi?id=83919&action=edit
dmesg log containing several GPU lockups

Upgrading xf86-video-ati to 7.2 has caused very frequent GPU lockups on my
machine (one after the other), after a while even causing my machine to
spontaneously reboot.

I'm using a Radeon HD7850, on a fully-updated 64bit Arch Linux installation
(Linux 3.10.5, Xserver 1.14.2). Attached is a dmesg from when the GPU locked-up
but I managed to switch to a TTY console, after which my system didn't lock-up
and I could collect the dmesg (but forgot Xorg.log).

My xrandr configuration:
Screen 0: minimum 320 x 200, current 2960 x 1050, maximum 16384 x 16384
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 1280x1024+0+20 (normal left inverted right x axis y axis)
340mm x 270mm
   1280x1024      60.0*+   75.0  
   1024x768       75.1     75.0     70.1     60.0  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1  
DVI-0 connected primary 1680x1050+1280+0 (normal left inverted right x axis y
axis) 474mm x 296mm
   1680x1050      59.9*+
   1280x1024      75.0     60.0  
   1280x960       60.0  
   1152x864       75.0  
   1024x768       75.1     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        72.8     75.0     66.7     60.0  
   720x400        70.1

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