Comment 3 for bug 539772

Forwarding this bug from Ubuntu reporter jerrylamos:
http://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/539772

[Problem]
Several users are reporting an X crash with a backtrace like this one. It seems to happen in relation to firefox usage. This one occurred when using AOL, another sees it when typing 5-6 characters slowly in the firefox search bar.

[Original Description]
Was entering data on AOL mail when Lucid crashed and login screen came up.

Jerry

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x3b) [0x80e880b]
1: /usr/bin/X (0x8048000+0x61aed) [0x80a9aed]
2: (vdso) (__kernel_rt_sigreturn+0x0) [0x1f8410]
3: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x50e000+0xb20f9) [0x5c00f9]
4: /usr/lib/xorg/modules/libexa.so (0xfe4000+0x9490) [0xfed490]
5: /usr/lib/xorg/modules/libexa.so (0xfe4000+0x9558) [0xfed558]
6: /usr/bin/X (miCopyRegion+0x21b) [0x819ac9b]
7: /usr/bin/X (miDoCopy+0x44d) [0x819b1bd]
8: /usr/lib/xorg/modules/libexa.so (0xfe4000+0x7a1a) [0xfeba1a]
9: /usr/bin/X (0x8048000+0xd9e83) [0x8121e83]
10: /usr/bin/X (0x8048000+0x28dd5) [0x8070dd5]
11: /usr/bin/X (0x8048000+0x2a457) [0x8072457]
12: /usr/bin/X (0x8048000+0x1ed3a) [0x8066d3a]
13: /lib/tls/i686/cmov/libc.so.6 (__libc_start_main+0xe6) [0x280bd6]
14: /usr/bin/X (0x8048000+0x1e921) [0x8066921]
Segmentation fault at address 0x6c4

Architecture: i386
Date: Tue Mar 16 14:40:06 2010
DistroRelease: Ubuntu 10.04
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20091214)
Lsusb:
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 002: ID 0a81:0205 Chesen Electronics Corp. PS/2 Keyboard+Mouse Adapter
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: IBM 23736U0
Package: xorg 1:7.5+3ubuntu1
PccardctlIdent:
 Socket 0:
   no product info available
 Socket 1:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
 Socket 1:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-16-generic root=UUID=19c58970-42dc-43e0-bf4f-11e52dbea1d8 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
SourcePackage: xorg
Uname: Linux 2.6.32-16-generic i686
dmi.bios.date: 10/13/2005
dmi.bios.vendor: IBM
dmi.bios.version: 1RETDNWW (3.19 )
dmi.board.name: 23736U0
dmi.board.vendor: IBM
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: IBM
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnIBM:bvr1RETDNWW(3.19):bd10/13/2005:svnIBM:pn23736U0:pvrThinkPadT40:rvnIBM:rn23736U0:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
dmi.product.name: 23736U0
dmi.product.version: ThinkPad T40
dmi.sys.vendor: IBM
glxinfo: Error: [Errno 2] No such file or directory
system:
  codename: lucid
 architecture: i686
 kernel: 2.6.32-16-generic