Xorg crashes - maybe someone can help.

[Łukasz Maśko]

Since about a month and a half I've been experiencing Xorg crashes. I'm 
using KDE and it maybe the problem, but maybe it is not - I don't know and 
don't know how to tell. I'm using Dell D430 with Intel i945GM graphics. I'm 
using the latest available stable drivers. Here are some examples of 
segfaults from Xorg logs:

First try:
[    61.068]
X.Org X Server 1.10.1
Release Date: 2011-04-15
[    61.083] X Protocol Version 11, Revision 0
[    61.083] Build Operating System: PLD/Linux PLD/Team
[    61.083] Current Operating System: Linux laptok 2.6.38.2-2 #1 SMP Sat 
Apr 2 11:11:59 CEST 2011 i686
[    61.083] Kernel command line: auto BOOT_IMAGE=test root=302 
resume=/dev/hda7 5
[    61.083] Build Date: 16 April 2011  08:26:05AM
[    61.083]
[    61.083] Current version of pixman: 0.20.2
[...]
[ 12764.361]
Backtrace:
[ 12764.361] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80df337]
[ 12764.362] 1: /usr/bin/X (0x8048000+0x5905a) [0x80a105a]
[ 12764.362] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb7702410]
[ 12764.362] 3: /usr/lib/xorg/modules/extensions/libglx.so 
(0xb735b000+0x31e9a) [0xb738ce9a]
[ 12764.362] 4: /usr/bin/X (FreeClientResources+0xe4) [0x808b763]
[ 12764.362] 5: /usr/bin/X (FreeAllResources+0x51) [0x808b81e]
[ 12764.362] 6: /usr/bin/X (0x8048000+0x1a346) [0x8062346]
[ 12764.362] 7: /lib/libc.so.6 (__libc_start_main+0xf2) [0xb7490dee]
[ 12764.362] Segmentation fault at address 0x29fec5c0
[ 12764.362]
Fatal server error:
[ 12764.362] Caught signal 11 (Segmentation fault). Server aborting

Second try:
[ 13931.591]
X.Org X Server 1.10.1
Release Date: 2011-04-15
[ 13931.591] X Protocol Version 11, Revision 0
[ 13931.591] Build Operating System: PLD/Linux PLD/Team
[ 13931.591] Current Operating System: Linux laptok 2.6.38.2-2 #1 SMP Sat 
Apr 2 11:11:59 CEST 2011 i686
[ 13931.591] Kernel command line: auto BOOT_IMAGE=test root=302 
resume=/dev/hda7 5
[ 13931.591] Build Date: 16 April 2011  08:26:05AM
[ 13931.591]
[ 13931.591] Current version of pixman: 0.22.0
[...]
[ 22931.194]
Backtrace:
[ 22931.195] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80df337]
[ 22931.195] 1: /usr/bin/X (0x8048000+0x5905a) [0x80a105a]
[ 22931.195] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb770d410]
[ 22931.195] 3: /usr/bin/X (FreeClientResources+0xe4) [0x808b763]
[ 22931.195] 4: /usr/bin/X (FreeAllResources+0x51) [0x808b81e]
[ 22931.195] 5: /usr/bin/X (0x8048000+0x1a346) [0x8062346]
[ 22931.195] 6: /lib/libc.so.6 (__libc_start_main+0xf2) [0xb7496dee]
[ 22931.195] Segmentation fault at address (nil)
[ 22931.195]
Fatal server error:
[ 22931.195] Caught signal 11 (Segmentation fault). Server aborting

Third try:
[    69.913]
X.Org X Server 1.10.1
Release Date: 2011-04-15
[    69.928] X Protocol Version 11, Revision 0
[    69.928] Build Operating System: PLD/Linux PLD/Team
[    69.928] Current Operating System: Linux laptok 
2.6.38.6_nogrsecurity-0.1 #1 SMP Tue May 10 22:27:55 CEST 2011 i686
[    69.928] Kernel command line: BOOT_IMAGE=test root=302 resume=/dev/hda7 
5
[    69.928] Build Date: 16 April 2011  08:26:05AM
[    69.928]
[    69.928] Current version of pixman: 0.22.0
[...]
[ 20741.240]
Backtrace:
[ 20741.264] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80df337]
[ 20741.264] 1: /usr/bin/X (0x8048000+0x5905a) [0x80a105a]
[ 20741.265] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb779b40c]
[ 20741.265] 3: /usr/bin/X (FreeResource+0xea) [0x808b13b]
[ 20741.265] 4: /usr/bin/X (0x8048000+0x21c18) [0x8069c18]
[ 20741.265] 5: /usr/bin/X (0x8048000+0x26362) [0x806e362]
[ 20741.265] 6: /usr/bin/X (0x8048000+0x1a31a) [0x806231a]
[ 20741.265] 7: /lib/libc.so.6 (__libc_start_main+0xf2) [0xb7524dee]
[ 20741.265] Segmentation fault at address 0x24
[ 20741.265]
Fatal server error:
[ 20741.265] Caught signal 11 (Segmentation fault). Server aborting

From time to time after such segfault my screen is not getting back to the 
console and I have to reboot my laptop.

Does anyone have an idea, if the problem is in Xorg, in kernel (errors 
suggest, that the error comes from there but may be caused by parameters 
coming from somewhere else) or in KDE? 
-- 
Łukasz Maśko                                           GG:   2441498    _o)
Lukasz.Masko(at)ipipan.waw.pl                                           /\\
Registered Linux User #61028                                           _\_V
Ubuntu: staroafrykańskie słowo oznaczające "Nie umiem zainstalować Debiana"