Comment 11 for bug 765136

I have meet the same crashes but with intel chipset.
Here is a snip of xorg logs:

[ 5627.344] (II) XKB: reuse xkmfile /var/lib/xkb/server-4083DBECFEED155AEB26754E3529D374C9A5ED79.xkm
[ 6389.389] (II) XKB: reuse xkmfile /var/lib/xkb/server-4083DBECFEED155AEB26754E3529D374C9A5ED79.xkm
[ 6869.605]
Backtrace:
[ 6869.606] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80eab1b]
[ 6869.606] 1: /usr/bin/X (0x8048000+0x5fac8) [0x80a7ac8]
[ 6869.606] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb4f40c]
[ 6869.606] 3: /usr/bin/X (_CallCallbacks+0x3e) [0x8074e1e]
[ 6869.606] 4: /usr/bin/X (WriteToClient+0x267) [0x80a7607]
[ 6869.606] 5: /usr/lib/xorg/modules/extensions/libdri2.so (ProcDRI2WaitMSCReply+0x62) [0x1b5bf2]
[ 6869.606] 6: /usr/lib/xorg/modules/extensions/libdri2.so (DRI2WaitMSCComplete+0x75) [0x1b3fc5]
[ 6869.606] 7: /usr/lib/xorg/modules/drivers/intel_drv.so (0x78e000+0x226bc) [0x7b06bc]
[ 6869.606] 8: /usr/lib/xorg/modules/drivers/intel_drv.so (0x78e000+0x87d2) [0x7967d2]
[ 6869.606] 9: /lib/i386-linux-gnu/libdrm.so.2 (drmHandleEvent+0xf5) [0x1af665]
[ 6869.606] 10: /usr/lib/xorg/modules/drivers/intel_drv.so (0x78e000+0x7937) [0x795937]
[ 6869.606] 11: /usr/bin/X (WakeupHandler+0x52) [0x8074602]
[ 6869.606] 12: /usr/bin/X (WaitForSomething+0x1ba) [0x80a1f3a]
[ 6869.606] 13: /usr/bin/X (0x8048000+0x27f1e) [0x806ff1e]
[ 6869.606] 14: /usr/bin/X (0x8048000+0x1a81c) [0x806281c]
[ 6869.606] 15: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xe7) [0x346e37]
[ 6869.606] 16: /usr/bin/X (0x8048000+0x1a411) [0x8062411]
[ 6869.606] Segmentation fault at address 0xb5a53008
[ 6869.606]
Caught signal 11 (Segmentation fault). Server aborting
[ 6869.606]

Strange think i notice, the xorg seems to be build as a server??

ptsiamis@wintermute:/var/log$ cat Xorg.0.log.old
[ 5408.461]
X.Org X Server 1.10.1
Release Date: 2011-04-15
[ 5408.461] X Protocol Version 11, Revision 0
[ 5408.461] Build Operating System: Linux 2.6.24-29-server i686 Ubuntu
[ 5408.461] Current Operating System: Linux wintermute 2.6.38-9-generic #43-Ubuntu SMP Thu Apr 28 15:25:15 UTC 2011 i686
[ 5408.461] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.38-9-generic root=UUID=a2609e31-b915-4c34-a77a-9ad70cb5b8c7 ro quiet splash vt.handoff=7
[ 5408.461] Build Date: 19 April 2011 03:33:17PM
[ 5408.461] xorg-server 2:1.10.1-1ubuntu1 (For technical support please see http://www.ubuntu.com/support)

Anyway chipset:

[ 5408.468] (II) intel: Driver for Intel Integrated Graphics Chipsets: i810,
 i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G, 915G,
 E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM, Pineview G,
 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33, GM45,
 4 Series, G45/G43, Q45/Q43, G41, B43, B43, Clarkdale, Arrandale,
 Sandybridge, Sandybridge, Sandybridge, Sandybridge, Sandybridge,
 Sandybridge, Sandybridge

[ 5408.476] (II) intel(0): Integrated Graphics Chipset: Intel(R) 965GM
[ 5408.476] (--) intel(0): Chipset: "965GM"

ptsiamis@wintermute:/var/log$ modinfo i915
filename: /lib/modules/2.6.38-9-generic/kernel/drivers/gpu/drm/i915/i915.ko
license: GPL and additional rights
description: Intel Graphics
author: Tungsten Graphics, Inc.
license: GPL and additional rights
srcversion: CE5A45F8B62D08682C7664F