new crash

linux: 2.6.32-14.20
libdrm-radeon: 2.4.18-1ubuntu2
xserver-xorg-video-radeon: 1:6.12.99+git20100126.e5933fd7-0ubuntu2


Feb 21 09:13:16 sweetie kernel: [  663.965806] ------------[ cut here ]------------
Feb 21 09:13:16 sweetie kernel: [  663.965812] kernel BUG at /build/buildd/linux-2.6.32/drivers/gpu/drm/ttm/ttm_bo.c:92!
Feb 21 09:13:16 sweetie kernel: [  663.965814] invalid opcode: 0000 [#1] SMP
Feb 21 09:13:16 sweetie kernel: [  663.965817] last sysfs file: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:00/PNP0C09:00/PNP0C0A:00/power_supply/BAT0/energy_full
Feb 21 09:13:16 sweetie kernel: [  663.965820] CPU 0
Feb 21 09:13:16 sweetie kernel: [  663.965822] Modules linked in: cryptd aes_x86_64 aes_generic binfmt_misc rfcomm ppdev sco bnep l2cap vboxnetadp vboxnetflt vboxdrv ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJ
ECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp kvm_intel kvm fbcon tileblit font bitblit softcursor vga16fb vgastate snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss arc4 snd_pcm pcmcia tp_smapi snd_seq_dummy snd
_seq_oss radeon hdaps thinkpad_ec coretemp joydev snd_seq_midi yenta_socket ohci1394 iwlagn sdhci_pci ieee1394 iwlcore rsrc_nonstatic sdhci snd_rawmidi ttm drm_kms_helper video output snd_seq_midi_event thinkpad_acpi led_class snd_seq tg3 snd_timer snd_seq_devic
e pcmcia_core ricoh_mmc psmouse drm serio_raw i2c_algo_bit nvram snd soundcore snd_page_alloc mac80211 cfg80211 intel_agp btusb bluetooth lp parport
Feb 21 09:13:16 sweetie kernel: [  663.965881] Pid: 9, comm: events/0 Not tainted 2.6.32-14-generic #20-Ubuntu 273232G
Feb 21 09:13:16 sweetie kernel: [  663.965883] RIP: 0010:[<ffffffffa022c41d>]  [<ffffffffa022c41d>] ttm_bo_release_list+0xed/0x100 [ttm]
Feb 21 09:13:16 sweetie kernel: [  663.965893] RSP: 0018:ffff880078c23d30  EFLAGS: 00010202
Feb 21 09:13:16 sweetie kernel: [  663.965895] RAX: 0000000000000002 RBX: ffff88005d520400 RCX: ffff88002f78b8a8
Feb 21 09:13:16 sweetie kernel: [  663.965897] RDX: ffff88003a0f1001 RSI: ffffffffa022c330 RDI: ffff88005d520444
Feb 21 09:13:16 sweetie kernel: [  663.965899] RBP: ffff880078c23d50 R08: 0000000000000000 R09: 0000000000000000
Feb 21 09:13:16 sweetie kernel: [  663.965901] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88005d520444
Feb 21 09:13:16 sweetie kernel: [  663.965903] R13: ffff8800782b6400 R14: ffff88005d520444 R15: ffff880064b6f508
Feb 21 09:13:16 sweetie kernel: [  663.965906] FS:  0000000000000000(0000) GS:ffff880001c00000(0000) knlGS:0000000000000000
Feb 21 09:13:16 sweetie kernel: [  663.965908] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
Feb 21 09:13:16 sweetie kernel: [  663.965910] CR2: 00007f2461bce000 CR3: 000000005e2a9000 CR4: 00000000000026f0
Feb 21 09:13:16 sweetie kernel: [  663.965912] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Feb 21 09:13:16 sweetie kernel: [  663.965915] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Feb 21 09:13:16 sweetie kernel: [  663.965917] Process events/0 (pid: 9, threadinfo ffff880078c22000, task ffff8800797f5bc0)
Feb 21 09:13:16 sweetie kernel: [  663.965919] Stack:
Feb 21 09:13:16 sweetie kernel: [  663.965920]  ffff880078c23d50 ffff88005d520444 ffffffffa022c330 0000000000000000
Feb 21 09:13:16 sweetie kernel: [  663.965924] <0> ffff880078c23d70 ffffffff812afc87 ffff880077c2e0b8 ffff880077c2e000
Feb 21 09:13:16 sweetie kernel: [  663.965928] <0> ffff880078c23de0 ffffffffa022d667 0000000000000000 ffff880001c15b00
Feb 21 09:13:16 sweetie kernel: [  663.965932] Call Trace:
Feb 21 09:13:16 sweetie kernel: [  663.965938]  [<ffffffffa022c330>] ? ttm_bo_release_list+0x0/0x100 [ttm]
Feb 21 09:13:16 sweetie kernel: [  663.965944]  [<ffffffff812afc87>] kref_put+0x37/0x70
Feb 21 09:13:16 sweetie kernel: [  663.965949]  [<ffffffffa022d667>] ttm_bo_delayed_delete+0xc7/0x170 [ttm]
Feb 21 09:13:16 sweetie kernel: [  663.965954]  [<ffffffffa022d710>] ? ttm_bo_delayed_workqueue+0x0/0x40 [ttm]
Feb 21 09:13:16 sweetie kernel: [  663.965959]  [<ffffffffa022d72f>] ttm_bo_delayed_workqueue+0x1f/0x40 [ttm]
Feb 21 09:13:16 sweetie kernel: [  663.965964]  [<ffffffff8107e9a7>] run_workqueue+0xc7/0x1a0
Feb 21 09:13:16 sweetie kernel: [  663.965967]  [<ffffffff8107eb23>] worker_thread+0xa3/0x110
Feb 21 09:13:16 sweetie kernel: [  663.965970]  [<ffffffff81083570>] ? autoremove_wake_function+0x0/0x40
Feb 21 09:13:16 sweetie kernel: [  663.965973]  [<ffffffff8107ea80>] ? worker_thread+0x0/0x110
Feb 21 09:13:16 sweetie kernel: [  663.965976]  [<ffffffff810831f6>] kthread+0x96/0xa0
Feb 21 09:13:16 sweetie kernel: [  663.965980]  [<ffffffff8101422a>] child_rip+0xa/0x20
Feb 21 09:13:16 sweetie kernel: [  663.965983]  [<ffffffff81083160>] ? kthread+0x0/0xa0
Feb 21 09:13:16 sweetie kernel: [  663.965986]  [<ffffffff81014220>] ? child_rip+0x0/0x20
Feb 21 09:13:16 sweetie kernel: [  663.965987] Code: 48 89 df e8 76 5b f0 e0 48 83 c4 08 5b 41 5c 41 5d c9 c3 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48
Feb 21 09:13:16 sweetie kernel: [  663.966017] RIP  [<ffffffffa022c41d>] ttm_bo_release_list+0xed/0x100 [ttm]
Feb 21 09:13:16 sweetie kernel: [  663.966022]  RSP <ffff880078c23d30>
Feb 21 09:13:16 sweetie kernel: [  663.966025] ---[ end trace 50452f7164891514 ]---