Dec  5 16:49:51 ubuntu acpid: client 17256[0:0] has disconnected
Dec  5 16:49:51 ubuntu acpid: client connected from 22429[0:0]
Dec  5 16:49:51 ubuntu acpid: 1 client rule loaded
Dec  5 16:49:52 ubuntu kernel: [190501.093496] ------------[ cut here ]------------
Dec  5 16:49:52 ubuntu kernel: [190501.093516] kernel BUG at /build/buildd/linux-2.6.35/drivers/gpu/drm/i915/i915_gem.c:4221!
Dec  5 16:49:52 ubuntu kernel: [190501.093527] invalid opcode: 0000 [#1] SMP 
Dec  5 16:49:52 ubuntu kernel: [190501.093538] last sysfs file: /sys/devices/virtual/backlight/acpi_video0/actual_brightness
Dec  5 16:49:52 ubuntu kernel: [190501.093548] Modules linked in: snd_seq_dummy binfmt_misc parport_pc ppdev joydev snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm pcmcia snd_seq_midi snd_rawmidi ipw2200 snd_seq_midi_event snd_seq libipw snd_timer snd_seq_device cfg80211 yenta_socket pcmcia_rsrc snd pcmcia_core lib80211 psmouse lp shpchp soundcore snd_page_alloc serio_raw parport i915 drm_kms_helper drm usbhid intel_agp hid via_rhine i2c_algo_bit video mii agpgart output
Dec  5 16:49:52 ubuntu kernel: [190501.093655] 
Dec  5 16:49:52 ubuntu kernel: [190501.093667] Pid: 22429, comm: Xorg Not tainted 2.6.35-23-generic #41-Ubuntu Montara-GML/Montara-GML 
Dec  5 16:49:52 ubuntu kernel: [190501.093678] EIP: 0060:[<f828d1eb>] EFLAGS: 00013282 CPU: 0
Dec  5 16:49:52 ubuntu kernel: [190501.093728] EIP is at i915_gem_object_unpin+0xbb/0xd0 [i915]
Dec  5 16:49:52 ubuntu kernel: [190501.093739] EAX: f6882e40 EBX: f686dc00 ECX: 000204ff EDX: fffffff8
Dec  5 16:49:52 ubuntu kernel: [190501.093749] ESI: 00020000 EDI: f71c6000 EBP: f6b85dc8 ESP: f6b85dbc
Dec  5 16:49:52 ubuntu kernel: [190501.093758]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Dec  5 16:49:52 ubuntu kernel: [190501.093769] Process Xorg (pid: 22429, ti=f6b84000 task=f69e0cb0 task.ti=f6b84000)
Dec  5 16:49:52 ubuntu kernel: [190501.093777] Stack:
Dec  5 16:49:52 ubuntu kernel: [190501.093782]  00000002 00000003 f6b20470 f6b85e4c f829346b f71c6014 02c00000 00000000
Dec  5 16:49:52 ubuntu kernel: [190501.093804] <0> 00000004 cd5ecc00 00000000 fffb7000 f6b85e24 00000001 00000003 00000000
Dec  5 16:49:52 ubuntu kernel: [190501.093826] <0> 02c00000 00000003 f686dc14 f6b20470 f71c6014 f6b20470 00000000 f71c6000
Dec  5 16:49:52 ubuntu kernel: [190501.093850] Call Trace:
Dec  5 16:49:52 ubuntu kernel: [190501.093894]  [<f829346b>] ? i915_gem_do_execbuffer+0x71b/0xca0 [i915]
Dec  5 16:49:52 ubuntu kernel: [190501.093935]  [<f8293e1a>] ? i915_gem_execbuffer2+0x4a/0x1b0 [i915]
Dec  5 16:49:52 ubuntu kernel: [190501.093973]  [<f8293e4c>] ? i915_gem_execbuffer2+0x7c/0x1b0 [i915]
Dec  5 16:49:52 ubuntu kernel: [190501.094021]  [<f815c98d>] ? drm_ioctl+0x1ad/0x430 [drm]
Dec  5 16:49:52 ubuntu kernel: [190501.094062]  [<f8293dd0>] ? i915_gem_execbuffer2+0x0/0x1b0 [i915]
Dec  5 16:49:52 ubuntu kernel: [190501.094087]  [<c05ccd4d>] ? do_page_fault+0x1cd/0x440
Dec  5 16:49:52 ubuntu kernel: [190501.094101]  [<c0226a22>] ? vfs_ioctl+0x32/0xb0
Dec  5 16:49:52 ubuntu kernel: [190501.094133]  [<f815c7e0>] ? drm_ioctl+0x0/0x430 [drm]
Dec  5 16:49:52 ubuntu kernel: [190501.094145]  [<c02272b9>] ? do_vfs_ioctl+0x79/0x2d0
Dec  5 16:49:52 ubuntu kernel: [190501.094161]  [<c02187b0>] ? do_sync_write+0x0/0xe0
Dec  5 16:49:52 ubuntu kernel: [190501.094172]  [<c0227577>] ? sys_ioctl+0x67/0x80
Dec  5 16:49:52 ubuntu kernel: [190501.094185]  [<c05c99f4>] ? syscall_call+0x7/0xb
Dec  5 16:49:52 ubuntu kernel: [190501.094192] Code: d1 8b 50 5c 8d 48 58 8b 70 58 89 56 04 89 32 8b 97 00 10 00 00 89 8f 00 10 00 00 81 c7 fc 0f 00 00 89 78 58 89 50 5c 89 0a eb a7 <0f> 0b eb fe 0f 0b eb fe 8d b6 00 00 00 00 8d bc 27 00 00 00 00 
Dec  5 16:49:52 ubuntu kernel: [190501.094314] EIP: [<f828d1eb>] i915_gem_object_unpin+0xbb/0xd0 [i915] SS:ESP 0068:f6b85dbc
Dec  5 16:49:52 ubuntu kernel: [190501.094363] ---[ end trace 18f1e2ce5efad0b9 ]---
Dec  5 17:11:11 ubuntu ntpd[1313]: kernel time sync status change 6001
Dec  5 17:17:01 ubuntu CRON[22464]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Dec  5 17:28:15 ubuntu ntpd[1313]: kernel time sync status change 2001
Dec  5 17:38:36 ubuntu acpid: client 22429[0:0] has disconnected