Created attachment 18941 [details]
xorg.0.log

System Environment:
--------------------------
Host:           965
Arch:           i386
Kernel:         2.6.27-rc5
Libdrm:         (master)973c634eaa54ee4085a72102c690bc643cb2d7a8
Mesa:           (master)904f31a62444d9f7e9b12ddafaa4beeb7fed6dfa
Xserver:                (master)b4762c0245ed2966606171cf27f40aa745fdc76e
Xf86_video_intel:               (master)9c5e0bf214cda5b1a126a2ff87509b888bab174b

Bug detailed description:
--------------------------
X can not start up with below error:
Backtrace:
0: X(xf86SigHandler+0x79) [0x80c0e39]
1: [0xb7fd9400]
2: /opt/X11R7/lib/xorg/modules/extensions//libdri2.so [0xb7e99d19]
3: /opt/X11R7/lib/xorg/modules/extensions//libdri2.so(DRI2Connect+0xe) [0xb7e99f7e]
4: /opt/X11R7/lib/xorg/modules/extensions//libglx.so [0xb7ef63be]
5: /opt/X11R7/lib/xorg/modules/extensions//libglx.so(GlxExtensionInit+0xe5) [0xb7eeb535]
6: X(InitExtensions+0xa2) [0x80e2732]
7: X(main+0x21e) [0x806c69e]
8: /lib/libc.so.6(__libc_start_main+0xe0) [0xbea390]
9: X [0x806bcd1]

Fatal server error:
Caught signal 11.  Server aborting


Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
Please also check the log file at "/opt/X11R7/var/log/Xorg.0.log" for additional information.


[1]+  Aborted                 X
**************************************
dmesg shows:
[drm] Initialized i915 1.6.0 20060119 on minor 0
[drm:i915_getparam] *ERROR* Unknown parameter 5
[drm:i915_getparam] *ERROR* Unknown parameter 5
mtrr: type mismatch for c0000000,10000000 old: write-back new: write-combining

Reproduce steps:
----------------
X&