[Bug 17859] New: X server crashes on rotation in xf86ResizeOffscreenLinear [ATI x1250 GPU]

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=17859

           Summary: X server crashes on rotation in
                    xf86ResizeOffscreenLinear [ATI x1250 GPU]
           Product: xorg
           Version: 7.4
          Platform: All
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bryce at canonical.com
         QAContact: xorg-team at lists.x.org


Forwarding this report from Ubuntu:

https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/276782

"Fresh bits installed 9/30 from daily image of Intrepid, onto a Dell Latitude
XT (ATI x1250 GPU, IIRC).

   xrandr -o left; xrandr -o normal; xrandr -o left

Crashes the X server. -- Jim Gettys"

Backtrace:
0: /usr/X11R6/bin/X(xf86SigHandler+0x79) [0x80c3069]
1: [0xb806b400]
2: /usr/X11R6/bin/X(xf86ResizeOffscreenLinear+0x3b) [0x80c871b]
3: /usr/lib/xorg/modules/drivers//radeon_drv.so [0xb7ad7f77]
4: /usr/lib/xorg/modules/drivers//radeon_drv.so [0xb7afd15e]
5: /usr/X11R6/bin/X(xf86CrtcRotate+0x328) [0x80f40c8]
6: /usr/X11R6/bin/X(xf86CrtcSetMode+0x403) [0x80eb243]
7: /usr/X11R6/bin/X [0x80f2582]
8: /usr/X11R6/bin/X(RRCrtcSet+0x96) [0x816ce96]
9: /usr/X11R6/bin/X(ProcRRSetScreenConfig+0x4db) [0x8171f1b]
10: /usr/X11R6/bin/X [0x816b5a5]
11: /usr/X11R6/bin/X(Dispatch+0x34f) [0x808c91f]
12: /usr/X11R6/bin/X(main+0x47d) [0x8071d8d]
13: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7c75685]
14: /usr/X11R6/bin/X [0x8071171]
Saw signal 11. Server aborting.

I was not able to reproduce the problem on a Dell XPS 1640 with an HD 3670
[1002:95:93], but Jim is easily able to reproduce it on his system.  We
attempted to attach gdb to the process to get a better trace, but with gdb
attached it simply hangs in WaitForSomething().


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