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[Bug 728923] Re: [Natty] WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x36f/0x3e0 [radeon]()

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Mathias <728923@xxxxxxxxxxxxxxxxxx>
Date: Thu, 01 Sep 2011 14:32:26 -0000
Reply-to: Bug 728923 <728923@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
I have the same problem. My system is unresponsive/crashes about once a day.
Please let me know if you need more logs or something.

uname -a:
###
Linux lnz357 2.6.38-11-generic #48-Ubuntu SMP Fri Jul 29 19:02:55 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
###

lspci -v -s 01:00.0
###
01:00.0 VGA compatible controller: ATI Technologies Inc RV710 [Radeon HD 4550] (prog-if 00 [VGA controller])
	Subsystem: Dell Device 0002
	Flags: bus master, fast devsel, latency 0, IRQ 44
	Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Memory at f7df0000 (64-bit, non-prefetchable) [size=64K]
	I/O ports at dc00 [size=256]
	Expansion ROM at f7e00000 [disabled] [size=128K]
	Capabilities: [50] Power Management version 3
	Capabilities: [58] Express Legacy Endpoint, MSI 00
	Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Kernel driver in use: radeon
	Kernel modules: radeon
###

kern.log
###
Sep  1 16:13:44 lnz357 kernel: [25971.439554] radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec
Sep  1 16:13:44 lnz357 kernel: [25971.439557] ------------[ cut here ]------------
Sep  1 16:13:44 lnz357 kernel: [25971.439576] WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x36f/0x3e0 [radeon]()
Sep  1 16:13:44 lnz357 kernel: [25971.439578] Hardware name: OptiPlex 980                 
Sep  1 16:13:44 lnz357 kernel: [25971.439579] GPU lockup (waiting for 0x00681523 last fence id 0x00681522)
Sep  1 16:13:44 lnz357 kernel: [25971.439581] Modules linked in: binfmt_misc pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv ipt_MASQUERADE iptable_nat xt_CHECKSUM iptable_mangle bridge stp kvm_intel kvm ipt_REJECT ipt_LOG snd_hda
_codec_hdmi snd_hda_codec_realtek xt_limit xt_tcpudp joydev ipt_addrtype xt_state radeon ip6table_filter snd_hda_intel ip6_tables snd_hda_codec nf_nat_irc nf_conntrack_irc dell_wmi nf_nat_ftp coretemp nf_nat snd_usb_audio nf_conn
track_ipv4 lp sparse_keymap ttm snd_usbmidi_lib psmouse nf_defrag_ipv4 dcdbas nf_conntrack_ftp serio_raw snd_hwdep nf_conntrack iptable_filter snd_pcm ppdev snd_seq_midi drm_kms_helper drm ip_tables snd_rawmidi x_tables i2c_algo_
bit snd_seq_midi_event snd_seq snd_timer parport_pc snd_seq_device snd soundcore snd_page_alloc parport usbhid hid ahci e1000e libahci
Sep  1 16:13:44 lnz357 kernel: [25971.439613] Pid: 1288, comm: Xorg Not tainted 2.6.38-11-generic #48-Ubuntu
Sep  1 16:13:44 lnz357 kernel: [25971.439615] Call Trace:
Sep  1 16:13:44 lnz357 kernel: [25971.439621]  [<ffffffff81065cbf>] ? warn_slowpath_common+0x7f/0xc0
Sep  1 16:13:44 lnz357 kernel: [25971.439623]  [<ffffffff81065db6>] ? warn_slowpath_fmt+0x46/0x50
Sep  1 16:13:44 lnz357 kernel: [25971.439632]  [<ffffffffa027d7cf>] ? radeon_fence_wait+0x36f/0x3e0 [radeon]
Sep  1 16:13:44 lnz357 kernel: [25971.439636]  [<ffffffff81087fb0>] ? autoremove_wake_function+0x0/0x40
Sep  1 16:13:44 lnz357 kernel: [25971.439646]  [<ffffffffa029716d>] ? radeon_ib_get+0x12d/0x1e0 [radeon]
Sep  1 16:13:44 lnz357 kernel: [25971.439656]  [<ffffffffa0298b3e>] ? radeon_cs_ioctl+0x8e/0x1e0 [radeon]
Sep  1 16:13:44 lnz357 kernel: [25971.439659]  [<ffffffff811309da>] ? handle_pte_fault+0xfa/0x210
Sep  1 16:13:44 lnz357 kernel: [25971.439667]  [<ffffffffa010c384>] ? drm_ioctl+0x3e4/0x4c0 [drm]
Sep  1 16:13:44 lnz357 kernel: [25971.439677]  [<ffffffffa0298ab0>] ? radeon_cs_ioctl+0x0/0x1e0 [radeon]
Sep  1 16:13:44 lnz357 kernel: [25971.439681]  [<ffffffff815c71b8>] ? do_page_fault+0x258/0x540
Sep  1 16:13:44 lnz357 kernel: [25971.439685]  [<ffffffff811764ff>] ? do_vfs_ioctl+0x8f/0x360
Sep  1 16:13:44 lnz357 kernel: [25971.439687]  [<ffffffff81176861>] ? sys_ioctl+0x91/0xa0
Sep  1 16:13:44 lnz357 kernel: [25971.439690]  [<ffffffff8100c002>] ? system_call_fastpath+0x16/0x1b
Sep  1 16:13:44 lnz357 kernel: [25971.439691] ---[ end trace 0e91d650a1fe789b ]---
Sep  1 16:13:44 lnz357 kernel: [25971.439700] [drm] Disabling audio support
Sep  1 16:13:44 lnz357 kernel: [25971.455730] radeon 0000:01:00.0: GPU softreset 
Sep  1 16:13:44 lnz357 kernel: [25971.455732] radeon 0000:01:00.0:   R_008010_GRBM_STATUS=0xF5702028
Sep  1 16:13:44 lnz357 kernel: [25971.455734] radeon 0000:01:00.0:   R_008014_GRBM_STATUS2=0x00110302
Sep  1 16:13:44 lnz357 kernel: [25971.455735] radeon 0000:01:00.0:   R_000E50_SRBM_STATUS=0x200000C0
Sep  1 16:13:44 lnz357 kernel: [25971.455743] radeon 0000:01:00.0:   R_008020_GRBM_SOFT_RESET=0x00007FEE
Sep  1 16:13:44 lnz357 kernel: [25971.470701] radeon 0000:01:00.0: R_008020_GRBM_SOFT_RESET=0x00000001
Sep  1 16:13:44 lnz357 kernel: [25971.486656] radeon 0000:01:00.0:   R_008010_GRBM_STATUS=0x00003028
Sep  1 16:13:44 lnz357 kernel: [25971.486658] radeon 0000:01:00.0:   R_008014_GRBM_STATUS2=0x00000002
Sep  1 16:13:44 lnz357 kernel: [25971.486660] radeon 0000:01:00.0:   R_000E50_SRBM_STATUS=0x200000C0
Sep  1 16:13:44 lnz357 kernel: [25971.487660] radeon 0000:01:00.0: GPU reset succeed
Sep  1 16:13:44 lnz357 kernel: [25971.523625] radeon 0000:01:00.0: WB enabled
Sep  1 16:13:44 lnz357 kernel: [25971.569990] [drm] ring test succeeded in 1 usecs
Sep  1 16:13:44 lnz357 kernel: [25971.569999] [drm] ib test succeeded in 1 usecs
Sep  1 16:13:44 lnz357 kernel: [25971.570001] [drm] Enabling audio support
Sep  1 16:13:54 lnz357 kernel: [25981.567726] radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec
Sep  1 16:13:54 lnz357 kernel: [25981.567733] ------------[ cut here ]------------
Sep  1 16:13:54 lnz357 kernel: [25981.567769] WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x36f/0x3e0 [radeon]()
Sep  1 16:13:54 lnz357 kernel: [25981.567774] Hardware name: OptiPlex 980                 
Sep  1 16:13:54 lnz357 kernel: [25981.567777] GPU lockup (waiting for 0x0068164D last fence id 0x0068164C)
Sep  1 16:13:54 lnz357 kernel: [25981.567780] Modules linked in: binfmt_misc pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv ipt_MASQUERADE iptable_nat xt_CHECKSUM iptable_mangle bridge stp kvm_intel kvm ipt_REJECT ipt_LOG snd_hda
_codec_hdmi snd_hda_codec_realtek xt_limit xt_tcpudp joydev ipt_addrtype xt_state radeon ip6table_filter snd_hda_intel ip6_tables snd_hda_codec nf_nat_irc nf_conntrack_irc dell_wmi nf_nat_ftp coretemp nf_nat snd_usb_audio nf_conn
track_ipv4 lp sparse_keymap ttm snd_usbmidi_lib psmouse nf_defrag_ipv4 dcdbas nf_conntrack_ftp serio_raw snd_hwdep nf_conntrack iptable_filter snd_pcm ppdev snd_seq_midi drm_kms_helper drm ip_tables snd_rawmidi x_tables i2c_algo_
bit snd_seq_midi_event snd_seq snd_timer parport_pc snd_seq_device snd soundcore snd_page_alloc parport usbhid hid ahci e1000e libahci
Sep  1 16:13:54 lnz357 kernel: [25981.567862] Pid: 1288, comm: Xorg Tainted: G        W   2.6.38-11-generic #48-Ubuntu
Sep  1 16:13:54 lnz357 kernel: [25981.567865] Call Trace:
Sep  1 16:13:54 lnz357 kernel: [25981.567876]  [<ffffffff81065cbf>] ? warn_slowpath_common+0x7f/0xc0
Sep  1 16:13:54 lnz357 kernel: [25981.567882]  [<ffffffff81065db6>] ? warn_slowpath_fmt+0x46/0x50
Sep  1 16:13:54 lnz357 kernel: [25981.567906]  [<ffffffffa027d7cf>] ? radeon_fence_wait+0x36f/0x3e0 [radeon]
Sep  1 16:13:54 lnz357 kernel: [25981.567913]  [<ffffffff81087fb0>] ? autoremove_wake_function+0x0/0x40
Sep  1 16:13:54 lnz357 kernel: [25981.567940]  [<ffffffffa029716d>] ? radeon_ib_get+0x12d/0x1e0 [radeon]
Sep  1 16:13:54 lnz357 kernel: [25981.567967]  [<ffffffffa0298b3e>] ? radeon_cs_ioctl+0x8e/0x1e0 [radeon]
Sep  1 16:13:54 lnz357 kernel: [25981.567974]  [<ffffffff811309da>] ? handle_pte_fault+0xfa/0x210
Sep  1 16:13:54 lnz357 kernel: [25981.567983]  [<ffffffffa010c384>] ? drm_ioctl+0x3e4/0x4c0 [drm]
Sep  1 16:13:54 lnz357 kernel: [25981.567993]  [<ffffffffa0298ab0>] ? radeon_cs_ioctl+0x0/0x1e0 [radeon]
Sep  1 16:13:54 lnz357 kernel: [25981.567997]  [<ffffffff815c71b8>] ? do_page_fault+0x258/0x540
Sep  1 16:13:54 lnz357 kernel: [25981.568001]  [<ffffffff811764ff>] ? do_vfs_ioctl+0x8f/0x360
Sep  1 16:13:54 lnz357 kernel: [25981.568002]  [<ffffffff81176861>] ? sys_ioctl+0x91/0xa0
Sep  1 16:13:54 lnz357 kernel: [25981.568005]  [<ffffffff8100c002>] ? system_call_fastpath+0x16/0x1b
Sep  1 16:13:54 lnz357 kernel: [25981.568007] ---[ end trace 0e91d650a1fe789c ]---
Sep  1 16:13:54 lnz357 kernel: [25981.568016] [drm] Disabling audio support
Sep  1 16:13:54 lnz357 kernel: [25981.584061] radeon 0000:01:00.0: GPU softreset 
Sep  1 16:13:54 lnz357 kernel: [25981.584064] radeon 0000:01:00.0:   R_008010_GRBM_STATUS=0xF5702028
Sep  1 16:13:54 lnz357 kernel: [25981.584065] radeon 0000:01:00.0:   R_008014_GRBM_STATUS2=0x00110302
Sep  1 16:13:54 lnz357 kernel: [25981.584067] radeon 0000:01:00.0:   R_000E50_SRBM_STATUS=0x200000C0
Sep  1 16:13:54 lnz357 kernel: [25981.584075] radeon 0000:01:00.0:   R_008020_GRBM_SOFT_RESET=0x00007FEE
Sep  1 16:13:54 lnz357 kernel: [25981.599032] radeon 0000:01:00.0: R_008020_GRBM_SOFT_RESET=0x00000001
Sep  1 16:13:54 lnz357 kernel: [25981.614988] radeon 0000:01:00.0:   R_008010_GRBM_STATUS=0x00003028
Sep  1 16:13:54 lnz357 kernel: [25981.614990] radeon 0000:01:00.0:   R_008014_GRBM_STATUS2=0x00000002
Sep  1 16:13:54 lnz357 kernel: [25981.614992] radeon 0000:01:00.0:   R_000E50_SRBM_STATUS=0x200000C0
Sep  1 16:13:54 lnz357 kernel: [25981.615991] radeon 0000:01:00.0: GPU reset succeed
Sep  1 16:13:54 lnz357 kernel: [25981.651955] radeon 0000:01:00.0: WB enabled
Sep  1 16:13:54 lnz357 kernel: [25981.698282] [drm] ring test succeeded in 1 usecs
Sep  1 16:13:54 lnz357 kernel: [25981.698293] [drm] ib test succeeded in 1 usecs
Sep  1 16:13:54 lnz357 kernel: [25981.698295] [drm] Enabling audio support
Sep  1 16:14:05 lnz357 kernel: [25992.214109] radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec
Sep  1 16:14:05 lnz357 kernel: [25992.214113] ------------[ cut here ]------------
Sep  1 16:14:05 lnz357 kernel: [25992.214138] WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x36f/0x3e0 [radeon]()
Sep  1 16:14:05 lnz357 kernel: [25992.214141] Hardware name: OptiPlex 980                 
Sep  1 16:14:05 lnz357 kernel: [25992.214142] GPU lockup (waiting for 0x0068175A last fence id 0x00681759)
Sep  1 16:14:05 lnz357 kernel: [25992.214144] Modules linked in: binfmt_misc pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv ipt_MASQUERADE iptable_nat xt_CHECKSUM iptable_mangle bridge stp kvm_intel kvm ipt_REJECT ipt_LOG snd_hda
_codec_hdmi snd_hda_codec_realtek xt_limit xt_tcpudp joydev ipt_addrtype xt_state radeon ip6table_filter snd_hda_intel ip6_tables snd_hda_codec nf_nat_irc nf_conntrack_irc dell_wmi nf_nat_ftp coretemp nf_nat snd_usb_audio nf_conn
track_ipv4 lp sparse_keymap ttm snd_usbmidi_lib psmouse nf_defrag_ipv4 dcdbas nf_conntrack_ftp serio_raw snd_hwdep nf_conntrack iptable_filter snd_pcm ppdev snd_seq_midi drm_kms_helper drm ip_tables snd_rawmidi x_tables i2c_algo_
bit snd_seq_midi_event snd_seq snd_timer parport_pc snd_seq_device snd soundcore snd_page_alloc parport usbhid hid ahci e1000e libahci
Sep  1 16:14:05 lnz357 kernel: [25992.214183] Pid: 1916, comm: compiz Tainted: G        W   2.6.38-11-generic #48-Ubuntu
Sep  1 16:14:05 lnz357 kernel: [25992.214185] Call Trace:
Sep  1 16:14:05 lnz357 kernel: [25992.214192]  [<ffffffff81065cbf>] ? warn_slowpath_common+0x7f/0xc0
Sep  1 16:14:05 lnz357 kernel: [25992.214195]  [<ffffffff81065db6>] ? warn_slowpath_fmt+0x46/0x50
Sep  1 16:14:05 lnz357 kernel: [25992.214205]  [<ffffffffa027d7cf>] ? radeon_fence_wait+0x36f/0x3e0 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.214210]  [<ffffffff81087fb0>] ? autoremove_wake_function+0x0/0x40
Sep  1 16:14:05 lnz357 kernel: [25992.214220]  [<ffffffffa027e0b1>] ? radeon_sync_obj_wait+0x11/0x20 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.214227]  [<ffffffffa021fb0d>] ? ttm_bo_wait+0xfd/0x1b0 [ttm]
Sep  1 16:14:05 lnz357 kernel: [25992.214231]  [<ffffffffa021fe88>] ? ttm_bo_list_ref_sub+0x28/0x30 [ttm]
Sep  1 16:14:05 lnz357 kernel: [25992.214243]  [<ffffffffa0296ad3>] ? radeon_gem_wait_idle_ioctl+0x93/0x110 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.214254]  [<ffffffffa010c384>] ? drm_ioctl+0x3e4/0x4c0 [drm]
Sep  1 16:14:05 lnz357 kernel: [25992.214265]  [<ffffffffa0296a40>] ? radeon_gem_wait_idle_ioctl+0x0/0x110 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.214270]  [<ffffffff815c71b8>] ? do_page_fault+0x258/0x540
Sep  1 16:14:05 lnz357 kernel: [25992.214275]  [<ffffffff811764ff>] ? do_vfs_ioctl+0x8f/0x360
Sep  1 16:14:05 lnz357 kernel: [25992.214277]  [<ffffffff81176861>] ? sys_ioctl+0x91/0xa0
Sep  1 16:14:05 lnz357 kernel: [25992.214280]  [<ffffffff8100c002>] ? system_call_fastpath+0x16/0x1b
Sep  1 16:14:05 lnz357 kernel: [25992.214282] ---[ end trace 0e91d650a1fe789d ]---
Sep  1 16:14:05 lnz357 kernel: [25992.214292] [drm] Disabling audio support
Sep  1 16:14:05 lnz357 kernel: [25992.230305] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(8).
Sep  1 16:14:05 lnz357 kernel: [25992.230308] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB !
Sep  1 16:14:05 lnz357 kernel: [25992.234267] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(9).
Sep  1 16:14:05 lnz357 kernel: [25992.234271] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB !
Sep  1 16:14:05 lnz357 kernel: [25992.236062] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(10).
Sep  1 16:14:05 lnz357 kernel: [25992.236064] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB !
Sep  1 16:14:05 lnz357 kernel: [25992.237559] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(11).
Sep  1 16:14:05 lnz357 kernel: [25992.237561] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB !
Sep  1 16:14:05 lnz357 kernel: [25992.241082] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(12).
Sep  1 16:14:05 lnz357 kernel: [25992.241085] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB !
Sep  1 16:14:05 lnz357 kernel: [25992.241559] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(13).
Sep  1 16:14:05 lnz357 kernel: [25992.241562] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB !
Sep  1 16:14:05 lnz357 kernel: [25992.243399] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(14).
Sep  1 16:14:05 lnz357 kernel: [25992.243401] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB !
Sep  1 16:14:05 lnz357 kernel: [25992.244276] radeon 0000:01:00.0: GPU softreset 
Sep  1 16:14:05 lnz357 kernel: [25992.244279] radeon 0000:01:00.0:   R_008010_GRBM_STATUS=0xF5702028
Sep  1 16:14:05 lnz357 kernel: [25992.244281] radeon 0000:01:00.0:   R_008014_GRBM_STATUS2=0x00110302
Sep  1 16:14:05 lnz357 kernel: [25992.244284] radeon 0000:01:00.0:   R_000E50_SRBM_STATUS=0x200000C0
Sep  1 16:14:05 lnz357 kernel: [25992.244290] radeon 0000:01:00.0:   R_008020_GRBM_SOFT_RESET=0x00007FEE
Sep  1 16:14:05 lnz357 kernel: [25992.245653] BUG: unable to handle kernel paging request at ffffc900075ee470
Sep  1 16:14:05 lnz357 kernel: [25992.245705] IP: [<ffffffffa02b12ac>] rs600_gart_set_page+0x3c/0x50 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.245766] PGD 11780f067 PUD 117820067 PMD ce482067 PTE 0
Sep  1 16:14:05 lnz357 kernel: [25992.245806] Oops: 0002 [#1] SMP 
Sep  1 16:14:05 lnz357 kernel: [25992.245831] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/block/sda/stat
Sep  1 16:14:05 lnz357 kernel: [25992.245884] CPU 3 
Sep  1 16:14:05 lnz357 kernel: [25992.245896] Modules linked in: binfmt_misc pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv ipt_MASQUERADE iptable_nat xt_CHECKSUM iptable_mangle bridge stp kvm_intel kvm ipt_REJECT ipt_LOG snd_hda
_codec_hdmi snd_hda_codec_realtek xt_limit xt_tcpudp joydev ipt_addrtype xt_state radeon ip6table_filter snd_hda_intel ip6_tables snd_hda_codec nf_nat_irc nf_conntrack_irc dell_wmi nf_nat_ftp coretemp nf_nat snd_usb_audio nf_conn
track_ipv4 lp sparse_keymap ttm snd_usbmidi_lib psmouse nf_defrag_ipv4 dcdbas nf_conntrack_ftp serio_raw snd_hwdep nf_conntrack iptable_filter snd_pcm ppdev snd_seq_midi drm_kms_helper drm ip_tables snd_rawmidi x_tables i2c_algo_
bit snd_seq_midi_event snd_seq snd_timer parport_pc snd_seq_device snd soundcore snd_page_alloc parport usbhid hid ahci e1000e libahci
Sep  1 16:14:05 lnz357 kernel: [25992.246341] 
Sep  1 16:14:05 lnz357 kernel: [25992.246351] Pid: 1288, comm: Xorg Tainted: G        W   2.6.38-11-generic #48-Ubuntu Dell Inc. OptiPlex 980                 /0C522T
Sep  1 16:14:05 lnz357 kernel: [25992.246411] RIP: 0010:[<ffffffffa02b12ac>]  [<ffffffffa02b12ac>] rs600_gart_set_page+0x3c/0x50 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.246469] RSP: 0018:ffff880036e0ba28  EFLAGS: 00010282
Sep  1 16:14:05 lnz357 kernel: [25992.246499] RAX: 00000000ffffffea RBX: ffff88010ddda000 RCX: ffffc900075ee470
Sep  1 16:14:05 lnz357 kernel: [25992.246537] RDX: 0000000045528067 RSI: 000000000006e470 RDI: ffff88010ddda000
Sep  1 16:14:05 lnz357 kernel: [25992.246576] RBP: ffff880036e0ba28 R08: 0000000000000000 R09: 0000000000000000
Sep  1 16:14:05 lnz357 kernel: [25992.246615] R10: 0000000000000002 R11: 0000000000000000 R12: 000000000000dc8e
Sep  1 16:14:05 lnz357 kernel: [25992.246653] R13: ffff8800715a7e78 R14: ffff88010e76e470 R15: 000000000000dc8e
Sep  1 16:14:05 lnz357 kernel: [25992.246692] FS:  00007f68e2ab28a0(0000) GS:ffff8800df4c0000(0000) knlGS:0000000000000000
Sep  1 16:14:05 lnz357 kernel: [25992.246735] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Sep  1 16:14:05 lnz357 kernel: [25992.246766] CR2: ffffc900075ee470 CR3: 0000000036cb3000 CR4: 00000000000026e0
Sep  1 16:14:05 lnz357 kernel: [25992.246805] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Sep  1 16:14:05 lnz357 kernel: [25992.246838] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Sep  1 16:14:05 lnz357 kernel: [25992.246870] Process Xorg (pid: 1288, threadinfo ffff880036e0a000, task ffff880102a616e0)
Sep  1 16:14:05 lnz357 kernel: [25992.246907] Stack:
Sep  1 16:14:05 lnz357 kernel: [25992.246918]  ffff880036e0ba78 ffffffffa02803d8 0dc8e00036e0ba48 0000000000000001
Sep  1 16:14:05 lnz357 kernel: [25992.246956]  ffff880036065300 ffff880036065300 ffff880036065300 ffff880036e0bb58
Sep  1 16:14:05 lnz357 kernel: [25992.246993]  0000000000000000 0000000000000000 ffff880036e0ba98 ffffffffa027de82
Sep  1 16:14:05 lnz357 kernel: [25992.247032] Call Trace:
Sep  1 16:14:05 lnz357 kernel: [25992.247057]  [<ffffffffa02803d8>] radeon_gart_bind+0x88/0x1c0 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.247094]  [<ffffffffa027de82>] radeon_ttm_backend_bind+0x32/0x90 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.247129]  [<ffffffffa021e858>] ttm_tt_bind+0x58/0x80 [ttm]
Sep  1 16:14:05 lnz357 kernel: [25992.247157]  [<ffffffffa0220904>] ttm_bo_handle_move_mem+0x194/0x3d0 [ttm]
Sep  1 16:14:05 lnz357 kernel: [25992.247198]  [<ffffffffa0117400>] ? drm_mm_put_block+0x180/0x230 [drm]
Sep  1 16:14:05 lnz357 kernel: [25992.247238]  [<ffffffff81155501>] ? kmem_cache_alloc_trace+0x31/0x120
Sep  1 16:14:05 lnz357 kernel: [25992.247276]  [<ffffffffa0221982>] ttm_bo_move_buffer+0x142/0x160 [ttm]
Sep  1 16:14:05 lnz357 kernel: [25992.247315]  [<ffffffff812e0ddd>] ? rb_insert_color+0xad/0x150
Sep  1 16:14:05 lnz357 kernel: [25992.247350]  [<ffffffffa0221a36>] ttm_bo_validate+0x96/0x120 [ttm]
Sep  1 16:14:05 lnz357 kernel: [25992.247387]  [<ffffffffa0221c78>] ttm_bo_init+0x1b8/0x260 [ttm]
Sep  1 16:14:05 lnz357 kernel: [25992.247429]  [<ffffffffa027f1f7>] radeon_bo_create+0x147/0x2a0 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.247474]  [<ffffffffa027ef50>] ? radeon_ttm_bo_destroy+0x0/0xc0 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.247523]  [<ffffffffa029633c>] radeon_gem_object_create+0x8c/0x120 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.249475]  [<ffffffffa0296788>] radeon_gem_create_ioctl+0x58/0xd0 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.251467]  [<ffffffffa0296ccf>] ? radeon_gem_get_tiling_ioctl+0xcf/0x110 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.253375]  [<ffffffffa010c384>] drm_ioctl+0x3e4/0x4c0 [drm]
Sep  1 16:14:05 lnz357 kernel: [25992.255282]  [<ffffffffa0296730>] ? radeon_gem_create_ioctl+0x0/0xd0 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.257317]  [<ffffffff815c71b8>] ? do_page_fault+0x258/0x540
Sep  1 16:14:05 lnz357 kernel: [25992.259250] radeon 0000:01:00.0: R_008020_GRBM_SOFT_RESET=0x00000001
Sep  1 16:14:05 lnz357 kernel: [25992.261239]  [<ffffffff811764ff>] do_vfs_ioctl+0x8f/0x360
Sep  1 16:14:05 lnz357 kernel: [25992.263180]  [<ffffffff81176861>] sys_ioctl+0x91/0xa0
Sep  1 16:14:05 lnz357 kernel: [25992.265069]  [<ffffffff8100c002>] system_call_fastpath+0x16/0x1b
Sep  1 16:14:05 lnz357 kernel: [25992.267143] Code: 50 03 00 00 85 f6 79 07 c9 c3 0f 1f 44 00 00 3b b7 38 03 00 00 77 f1 c1 e6 03 48 81 e2 00 f0 ff ff 48 63 f6 48 83 ca 67 48 01 f1 <48> 89 11 31 c0 c9 c3 66 66 66 66 2e 0f 1f 84 0
0 00 00 00 00 55 
Sep  1 16:14:05 lnz357 kernel: [25992.269516] RIP  [<ffffffffa02b12ac>] rs600_gart_set_page+0x3c/0x50 [radeon]
Sep  1 16:14:05 lnz357 kernel: [25992.271805]  RSP <ffff880036e0ba28>
Sep  1 16:14:05 lnz357 kernel: [25992.274029] CR2: ffffc900075ee470
Sep  1 16:14:05 lnz357 kernel: [25992.275207] radeon 0000:01:00.0:   R_008010_GRBM_STATUS=0x00003028
Sep  1 16:14:05 lnz357 kernel: [25992.275210] radeon 0000:01:00.0:   R_008014_GRBM_STATUS2=0x00000002
Sep  1 16:14:05 lnz357 kernel: [25992.275212] radeon 0000:01:00.0:   R_000E50_SRBM_STATUS=0x200030C0
Sep  1 16:14:05 lnz357 kernel: [25992.276212] radeon 0000:01:00.0: GPU reset succeed
Sep  1 16:14:05 lnz357 kernel: [25992.297807] ---[ end trace 0e91d650a1fe789e ]---
###

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https://bugs.launchpad.net/bugs/728923

Title:
  [Natty] WARNING: at
  /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248
  radeon_fence_wait+0x36f/0x3e0 [radeon]()

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