me too: ubuntu 10.04 - 2.6.32-23
[433560.791484] i915 D ffff8800b8f93028 0 742 2 0x00000000
[433560.791489] ffff8800b6f11d20 0000000000000046 0000000000015bc0
0000000000015bc0
[433560.791494] ffff8800b942df80 ffff8800b6f11fd8 0000000000015bc0
ffff8800b942dbc0
[433560.791498] 0000000000015bc0 ffff8800b6f11fd8 0000000000015bc0
ffff8800b942df80
[433560.791502] Call Trace:
[433560.791512] [<ffffffff81542077>] __mutex_lock_slowpath+0xe7/0x170
[433560.791516] [<ffffffff81541f6b>] mutex_lock+0x2b/0x50
[433560.791543] [<ffffffffa01b1220>] intel_idle_update+0x60/0x1e0 [i915]
[433560.791555] [<ffffffffa01b11c0>] ? intel_idle_update+0x0/0x1e0 [i915]
[433560.791560] [<ffffffff81080867>] run_workqueue+0xc7/0x1a0
[433560.791564] [<ffffffff810809e3>] worker_thread+0xa3/0x110
[433560.791568] [<ffffffff81085430>] ? autoremove_wake_function+0x0/0x40
[433560.791571] [<ffffffff81080940>] ? worker_thread+0x0/0x110
[433560.791574] [<ffffffff810850b6>] kthread+0x96/0xa0
[433560.791578] [<ffffffff810141ea>] child_rip+0xa/0x20
[433560.791582] [<ffffffff81085020>] ? kthread+0x0/0xa0
[433560.791584] [<ffffffff810141e0>] ? child_rip+0x0/0x20
[433560.791600] INFO: task Xorg:1206 blocked for more than 120 seconds.
[433560.791602] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[433560.791604] Xorg D 00000000ffffc900 0 1206 1144 0x00400004
[433560.791608] ffff8800b8a4fca8 0000000000000086 0000000000015bc0
0000000000015bc0
[433560.791612] ffff8800b80003c0 ffff8800b8a4ffd8 0000000000015bc0
ffff8800b8000000
[433560.791616] 0000000000015bc0 ffff8800b8a4ffd8 0000000000015bc0
ffff8800b80003c0
[433560.791620] Call Trace:
[433560.791624] [<ffffffff81542077>] __mutex_lock_slowpath+0xe7/0x170
[433560.791627] [<ffffffff81541f6b>] mutex_lock+0x2b/0x50
[433560.791638] [<ffffffffa019e88b>] i915_gem_throttle_ioctl+0x3b/0x90 [i915]
[433560.791653] [<ffffffffa0101e5c>] drm_ioctl+0x27c/0x480 [drm]
[433560.791663] [<ffffffffa019e850>] ? i915_gem_throttle_ioctl+0x0/0x90 [i915]
[433560.791668] [<ffffffff810397a9>] ? default_spin_lock_flags+0x9/0x10
[433560.791672] [<ffffffff8154348f>] ? _spin_lock_irqsave+0x2f/0x40
[433560.791677] [<ffffffff81153cd2>] vfs_ioctl+0x22/0xa0
[433560.791682] [<ffffffff81252326>] ? security_file_permission+0x16/0x20
[433560.791685] [<ffffffff81153f81>] do_vfs_ioctl+0x81/0x380
[433560.791688] [<ffffffff81154301>] sys_ioctl+0x81/0xa0
[433560.791692] [<ffffffff810131b2>] system_call_fastpath+0x16/0x1b
00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated
Graphics Controller (rev 02)
Subsystem: ASRock Incorporation Device 2772
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at fe980000 (32-bit, non-prefetchable) [size=512K]
I/O ports at cc00 [size=8]
Memory at d0000000 (32-bit, prefetchable) [size=256M]
Memory at fe940000 (32-bit, non-prefetchable) [size=256K]
Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0
Enable-
Capabilities: [d0] Power Management version 2
Kernel driver in use: i915
Kernel modules: i915
--
[i945g] karmic: INFO: task i915/* blocked for more than 120 seconds.
https://bugs.launchpad.net/bugs/451518
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