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kernel BUG at /build/buildd/linux-2.6.35/drivers/gpu/drm/i915/i915_gem.c:4197!
invalid opcode: 0000 [#1] SMP 
last sysfs file: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1/voltage_now
Modules linked in: mmc_block sdricoh_cs pata_pcmcia ftdi_sio usbserial nls_iso8859_1 nls_cp437 vfat fat usb_storage binfmt_misc aes_i586 parport_pc aes_generic ppdev rfcomm lp parport sco bnep l2cap snd_intel8x0 snd_ac97_codec arc4 ac97_bus snd_pcm b43 snd_seq_midi snd_rawmidi snd_seq_midi_event i915 mac80211 snd_seq pcmcia snd_timer snd_seq_device yenta_socket drm_kms_helper drm joydev pcmcia_rsrc cfg80211 snd i2c_algo_bit led_class video psmouse pcmcia_core output intel_agp irda soundcore btusb shpchp agpgart serio_raw snd_page_alloc bluetooth dcdbas crc_ccitt firewire_ohci tg3 ssb firewire_core crc_itu_t

Pid: 1101, comm: Xorg Tainted: G        W   2.6.35-19-generic #26-Ubuntu 0R5949/Latitude X300
EIP: 0060:[<f865ce6b>] EFLAGS: 00213296 CPU: 0
EIP is at i915_gem_object_unpin+0xbb/0xd0 [i915]
EAX: e6b76d80 EBX: e6827400 ECX: 0003c4ff EDX: ffffffff
ESI: 0003c000 EDI: e6482000 EBP: e6629dc8 ESP: e6629dbc
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process Xorg (pid: 1101, ti=e6628000 task=e6618cb0 task.ti=e6628000)
Stack:
 00000002 00000003 f6b65230 e6629e4c f8662e73 e6482014 05886000 00000000
<0> 00000000 00000028 e6629e18 f8661cac e6827414 eeba6780 00000003 00000000
<0> 05886000 00000003 e6827414 f6b65230 e6482014 f6b65230 00000000 e6482000
Call Trace:
 [<f8662e73>] ? i915_gem_do_execbuffer+0x723/0xc90 [i915]
 [<f8661cac>] ? i915_gem_gtt_pwrite_fast+0x11c/0x150 [i915]
 [<f8663a7a>] ? i915_gem_execbuffer2+0x4a/0x1b0 [i915]
 [<f8663aac>] ? i915_gem_execbuffer2+0x7c/0x1b0 [i915]
 [<f844198d>] ? drm_ioctl+0x1ad/0x430 [drm]
 [<f8663a30>] ? i915_gem_execbuffer2+0x0/0x1b0 [i915]
 [<c032e036>] ? apparmor_file_permission+0x16/0x20
 [<c0302504>] ? security_file_permission+0x14/0x20
 [<c0218092>] ? rw_verify_area+0x62/0xd0
 [<c02260e2>] ? vfs_ioctl+0x32/0xb0
 [<f84417e0>] ? drm_ioctl+0x0/0x430 [drm]
 [<c0226979>] ? do_vfs_ioctl+0x79/0x2d0
 [<c0217e70>] ? do_sync_write+0x0/0xe0
 [<c0226c37>] ? sys_ioctl+0x67/0x80
 [<c05c8364>] ? syscall_call+0x7/0xb
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 
EIP: [<f865ce6b>] i915_gem_object_unpin+0xbb/0xd0 [i915] SS:ESP 0068:e6629dbc
---[ end trace ce5891317cf03392 ]---