Comment 4 for bug 124023

Here's the backtrace portions of the logs:

(II) I810(0): [drm] removed 1 reserved context for kernel
(II) I810(0): [drm] unmapping 8192 bytes of SAREA 0xf8d30000 at 0xb7a94000
Error in I830WaitLpRing(), now is -2033746721, start is -2033748722
pgetbl_ctl: 0x3ff80001 pgetbl_err: 0x0
ipeir: 0 iphdr: 0
LP ring tail: 38 head: 0 len: 1f001 start 0
eir: 0 esr: 1 emr: ffdf
instdone: 0 instpm: 0
memmode: 0 instps: 0
hwstam: dfff ier: 0 imr: dfff iir: 0
space: 131008 wanted 131064

Fatal server error:
lockup

Backtrace:
0: /usr/bin/X(xf86SigHandler+0x81) [0x80c7f11]
1: [0xffffe420]
2: /usr/bin/X(AbortDDX+0xad) [0x80a6c7d]
3: /usr/bin/X(AbortServer+0x23) [0x81c3293]
4: /usr/bin/X(FatalError+0x66) [0x81c3796]
5: /usr/lib/xorg/modules/drivers//i810_drv.so(I830WaitLpRing+0x116) [0xb7c07b46]
6: /usr/lib/xorg/modules/drivers//i810_drv.so(I830Sync+0x104) [0xb7c08334]
7: /usr/lib/xorg/modules/drivers//i810_drv.so [0xb7c0d679]
8: /usr/lib/xorg/modules/drivers//i810_drv.so [0xb7c0e706]
9: /usr/lib/xorg/modules/drivers//i810_drv.so [0xb7c14683]
10: /usr/lib/xorg/modules//libshadow.so [0xb7a9741e]
11: /usr/bin/X [0x8168c37]
12: /usr/bin/X [0x80cd8c9]
13: /usr/bin/X [0x8142658]
14: /usr/bin/X [0x81664c5]
15: /usr/bin/X [0x8105c75]
16: /usr/bin/X(main+0x50c) [0x80767dc]
17: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc) [0xb7deeebc]
18: /usr/bin/X(FontFileCompleteXLFD+0x1e5) [0x8075a81]

FatalError re-entered, aborting
Caught signal 11. Server aborting

---

Error in I830WaitLpRing(), now is -2032605365, start is -2032607366
pgetbl_ctl: 0x3ff80001 pgetbl_err: 0x0
ipeir: 0 iphdr: 0
LP ring tail: d88 head: 0 len: 1f001 start 0
eir: 0 esr: 1 emr: ffdf
instdone: 0 instpm: 0
memmode: 0 instps: 0
hwstam: dfff ier: 0 imr: dfff iir: 0
space: 127600 wanted 131064

Fatal server error:
lockup

Backtrace:
0: /usr/bin/X(xf86SigHandler+0x81) [0x80c7f11]
1: [0xffffe420]
2: /usr/bin/X(AbortDDX+0xad) [0x80a6c7d]
3: /usr/bin/X(AbortServer+0x23) [0x81c3293]
4: /usr/bin/X(FatalError+0x66) [0x81c3796]
5: /usr/lib/xorg/modules/drivers//intel_drv.so(I830WaitLpRing+0x123) [0xb7bb5ed3]
6: /usr/lib/xorg/modules/drivers//intel_drv.so(I830Sync+0xfd) [0xb7bb60fd]
7: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb7bbceba]
8: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb7bbcfc0]
9: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb7bbd3c3]
10: /usr/bin/X [0x8168c37]
11: /usr/bin/X [0x80cd8c9]
12: /usr/bin/X [0x8142658]
13: /usr/bin/X [0x81664c5]
14: /usr/bin/X [0x8105c75]
15: /usr/bin/X(main+0x50c) [0x80767dc]
16: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc) [0xb7d9aebc]
17: /usr/bin/X(FontFileCompleteXLFD+0x1e5) [0x8075a81]

FatalError re-entered, aborting
Caught signal 11. Server aborting