------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x2ea/0x350 [radeon]()
Hardware name: M51Kr              
GPU lockup (waiting for 0x00076D15 last fence id 0x00076D14)
Modules linked in: usbhid hid nls_iso8859_1 nls_cp437 vfat fat parport_pc ppdev snd_hda_codec_si3054 snd_hda_codec_realtek arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm joydev ath9k snd_seq_midi mac80211 snd_rawmidi ath9k_common ath9k_hw binfmt_misc snd_seq_midi_event ath radeon snd_seq snd_timer cfg80211 snd_seq_device uvcvideo r852 sm_common psmouse nand ttm snd nand_ids nand_ecc videodev drm_kms_helper mtd serio_raw k8temp soundcore snd_page_alloc drm sp5100_tco i2c_piix4 video ati_agp i2c_algo_bit asus_laptop sparse_keymap lp parport firewire_ohci mmc_block firewire_core sdhci_pci ahci crc_itu_t sdhci libahci pata_atiixp r8169
Pid: 1173, comm: compiz Tainted: G        W   2.6.38-8-generic #42-Ubuntu
Call Trace:
 [<c104f912>] ? warn_slowpath_common+0x72/0xa0
 [<f877d66a>] ? radeon_fence_wait+0x2ea/0x350 [radeon]
 [<f877d66a>] ? radeon_fence_wait+0x2ea/0x350 [radeon]
 [<c104f9e3>] ? warn_slowpath_fmt+0x33/0x40
 [<f877d66a>] ? radeon_fence_wait+0x2ea/0x350 [radeon]
 [<c106d370>] ? autoremove_wake_function+0x0/0x50
 [<f877ded1>] ? radeon_sync_obj_wait+0x11/0x20 [radeon]
 [<f8587719>] ? ttm_bo_wait+0xd9/0x170 [ttm]
 [<f8794d52>] ? radeon_gem_wait_idle_ioctl+0x82/0xe0 [radeon]
 [<f845ccd1>] ? drm_ioctl+0x1e1/0x470 [drm]
 [<f8794cd0>] ? radeon_gem_wait_idle_ioctl+0x0/0xe0 [radeon]
 [<c1101627>] ? handle_mm_fault+0xb7/0x120
 [<c150ce00>] ? do_page_fault+0x0/0x490
 [<c150d02f>] ? do_page_fault+0x22f/0x490
 [<f845caf0>] ? drm_ioctl+0x0/0x470 [drm]
 [<c11367cb>] ? do_vfs_ioctl+0x7b/0x2e0
 [<c1136ab7>] ? sys_ioctl+0x87/0x90
 [<c1054f02>] ? sys_gettimeofday+0x32/0x70
 [<c1509bf4>] ? syscall_call+0x7/0xb
---[ end trace 1d6b7e246c72d782 ]---