Comment 36 for bug 276476

This bug (or a similar one) is still affecting me, and I'm using 2.6.31-16 generic on Karmic.

It was frozen today for about 20 minutes before I gave up and restarted it using SysRq+rseiub.

Does this mean we need to open a new bug report?

[23400.464046] INFO: task i915/0:318 blocked for more than 120 seconds.
[23400.464052] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[23400.464057] i915/0 D c08145c0 0 318 2 0x00000000
[23400.464065] f6a05f04 00000046 f64f713c c08145c0 f64f73a8 c08145c0 08c8cc8d 0000143a
[23400.464077] c08145c0 c08145c0 f64f73a8 c08145c0 08c8c149 0000143a c08145c0 ef0cc8c0
[23400.464088] f64f7110 f69fec14 f69fec18 ffffffff f6a05f30 c056fdd6 f6901920 f69fec1c
[23400.464100] Call Trace:
[23400.464111] [<c056fdd6>] __mutex_lock_slowpath+0xc6/0x130
[23400.464117] [<c056fcf0>] mutex_lock+0x20/0x40
[23400.464146] [<f83aec0a>] i915_gem_retire_work_handler+0x2a/0x70 [i915]
[23400.464154] [<c0157a7e>] run_workqueue+0x6e/0x140
[23400.464176] [<f83aebe0>] ? i915_gem_retire_work_handler+0x0/0x70 [i915]
[23400.464182] [<c0157bd8>] worker_thread+0x88/0xe0
[23400.464188] [<c015c280>] ? autoremove_wake_function+0x0/0x40
[23400.464195] [<c0157b50>] ? worker_thread+0x0/0xe0
[23400.464200] [<c015bf8c>] kthread+0x7c/0x90
[23400.464205] [<c015bf10>] ? kthread+0x0/0x90
[23400.464211] [<c0104007>] kernel_thread_helper+0x7/0x10