------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x2ea/0x360 [radeon]()
Hardware name: Satellite L300D
GPU lockup (waiting for 0x00012B49 last fence id 0x00012B48)
Modules linked in: ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs exportfs reiserfs cryptd aes_i586 aes_generic binfmt_misc parport_pc ppdev snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm arc4 snd_seq_midi joydev snd_rawmidi snd_seq_midi_event radeon ttm drm_kms_helper snd_seq snd_timer snd_seq_device drm i2c_algo_bit ath5k snd uvcvideo ath mac80211 cfg80211 soundcore psmouse snd_page_alloc serio_raw videodev sp5100_tco i2c_piix4 lp shpchp k10temp sparse_keymap parport video usbhid hid usb_storage uas r8169 pata_atiixp ahci libahci btrfs zlib_deflate libcrc32c
Pid: 1628, comm: compiz Not tainted 2.6.38-7-generic-pae #39-Ubuntu
Call Trace:
 [<c1058d32>] ? warn_slowpath_common+0x72/0xa0
 [<f88ebeaa>] ? radeon_fence_wait+0x2ea/0x360 [radeon]
 [<f88ebeaa>] ? radeon_fence_wait+0x2ea/0x360 [radeon]
 [<c1058e03>] ? warn_slowpath_fmt+0x33/0x40
 [<f88ebeaa>] ? radeon_fence_wait+0x2ea/0x360 [radeon]
 [<c1076be0>] ? autoremove_wake_function+0x0/0x50
 [<f88ec731>] ? radeon_sync_obj_wait+0x11/0x20 [radeon]
 [<f8686719>] ? ttm_bo_wait+0xd9/0x170 [ttm]
 [<f89047b2>] ? radeon_gem_wait_idle_ioctl+0x82/0xe0 [radeon]
 [<f8780db1>] ? drm_ioctl+0x1e1/0x470 [drm]
 [<f8904730>] ? radeon_gem_wait_idle_ioctl+0x0/0xe0 [radeon]
 [<c110dfcd>] ? vma_link+0x8d/0xe0
 [<c110fbe0>] ? mmap_region+0x190/0x480
 [<c1110101>] ? do_mmap_pgoff+0x231/0x300
 [<f8780bd0>] ? drm_ioctl+0x0/0x470 [drm]
 [<c1141d7b>] ? do_vfs_ioctl+0x7b/0x2e0
 [<c1142067>] ? sys_ioctl+0x87/0x90
 [<c105e322>] ? sys_gettimeofday+0x32/0x70
 [<c100ab5f>] ? sysenter_do_call+0x12/0x28
---[ end trace eb0a18fdb37f3b24 ]---