Comment 7 for bug 363305

Backtrace:
0: /usr/X11R6/bin/X(xorg_backtrace+0x26) [0x4f1b66]
1: /usr/X11R6/bin/X(xf86SigHandler+0x41) [0x485a61]
2: /lib/libc.so.6 [0x7f4f7e190040]
3: /usr/lib/xorg/modules/drivers//intel_drv.so(I830EmitFlush+0x8f) [0x7f4f7c3ca0cf]
4: /usr/lib/xorg/modules/drivers//intel_drv.so(I830Sync+0x54) [0x7f4f7c3ca4c4]
5: /usr/lib/xorg/modules/drivers//intel_drv.so [0x7f4f7c3d78aa]
6: /usr/X11R6/bin/X(SigAbortDDX+0x8d) [0x46d71d]
7: /usr/X11R6/bin/X(AbortServer+0x1d) [0x4fb33d]
8: /usr/X11R6/bin/X(LogVMessageVerb+0) [0x4fba30]
9: /usr/lib/xorg/modules/drivers//intel_drv.so [0x7f4f7c3d8622]
10: /usr/lib/xorg/modules/drivers//intel_drv.so [0x7f4f7c3d9c4c]
11: /usr/X11R6/bin/X(AddScreen+0x1c6) [0x4334c6]
12: /usr/X11R6/bin/X(InitOutput+0x241) [0x46ee21]
13: /usr/X11R6/bin/X(main+0x20e) [0x433bde]
14: /lib/libc.so.6(__libc_start_main+0xe6) [0x7f4f7e17b5a6]
15: /usr/X11R6/bin/X [0x433219]
Saw signal 11. Server aborting.