Comment 9 for bug 889068

I also have a similar problem with X deciding to restart itself every now and again. Notice that although the log is almost identical, there is something about a failed attempt at submitting batch buffer. I don't know if it is relevant but I included it just in case.

Using 64-bit version of Ubuntu 11.10. The problem persists in both 3D and 2D sessions.

[859350.908] (EE) intel(0): Failed to submit batch buffer, expect rendering corruption or even a frozen display: No space left on device.
[859350.951]
Backtrace:
[859351.108] 0: /usr/bin/X (xorg_backtrace+0x26) [0x460566]
[859351.108] 1: /usr/bin/X (0x400000+0x64b7a) [0x464b7a]
[859351.108] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fcc98072000+0x10060) [0x7fcc98082060]
[859351.108] 3: /lib/x86_64-linux-gnu/libc.so.6 (0x7fcc96f8d000+0x12fef7) [0x7fcc970bcef7]
[859351.108] 4: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7fcc951b2000+0x11346) [0x7fcc951c3346]
[859351.108] 5: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7fcc951b2000+0x12f27) [0x7fcc951c4f27]
[859351.108] 6: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7fcc951b2000+0x28e24) [0x7fcc951dae24]
[859351.108] 7: /usr/bin/X (0x400000+0xe082c) [0x4e082c]
[859351.108] 8: /usr/bin/X (0x400000+0x2c87e) [0x42c87e]
[859351.108] 9: /usr/bin/X (0x400000+0x2fb89) [0x42fb89]
[859351.108] 10: /usr/bin/X (0x400000+0x232fe) [0x4232fe]
[859351.108] 11: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7fcc96fae30d]
[859351.108] 12: /usr/bin/X (0x400000+0x235ed) [0x4235ed]
[859351.108] Bus error at address 0x7fcc80c9d010
[859351.108]
Caught signal 7 (Bus error). Server aborting
[859351.108]
Please consult the The X.Org Foundation support