[Bug 424055] Re: Karmic Intel GPU hang

[Matt Zimmerman]

This appeared in syslog around the time of the hang, confirming it's a
GPU lockup:

Sep  3 15:46:24 atomicity kernel: [21000.796177] INFO: task i915/0:828 blocked for more than 120 seconds.
Sep  3 15:46:24 atomicity kernel: [21000.796193] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep  3 15:46:24 atomicity kernel: [21000.796206] i915/0        D c0805380     0   828      2 0x00000000
Sep  3 15:46:24 atomicity kernel: [21000.796227]  ef44bf04 00000046 f707e000 c0805380 ef4ecdf8 c0805380 1b290057 000012f1
Sep  3 15:46:24 atomicity kernel: [21000.796256]  c0805380 c0805380 ef4ecdf8 c0805380 00000000 000012f1 c0805380 eec77880
Sep  3 15:46:24 atomicity kernel: [21000.796283]  ef4ecb60 ef52a414 ef52a418 ffffffff ef44bf30 c0567556 c073ce80 ef52a41c
Sep  3 15:46:24 atomicity kernel: [21000.796310] Call Trace:
Sep  3 15:46:24 atomicity kernel: [21000.796339]  [<c0567556>] __mutex_lock_slowpath+0xc6/0x130
Sep  3 15:46:24 atomicity kernel: [21000.796356]  [<c0567470>] mutex_lock+0x20/0x40
Sep  3 15:46:24 atomicity kernel: [21000.796424]  [<f824e94a>] i915_gem_retire_work_handler+0x2a/0x70 [i915]
Sep  3 15:46:24 atomicity kernel: [21000.796459]  [<c015312e>] run_workqueue+0x6e/0x140
Sep  3 15:46:24 atomicity kernel: [21000.796515]  [<f824e920>] ? i915_gem_retire_work_handler+0x0/0x70 [i915]
Sep  3 15:46:24 atomicity kernel: [21000.796547]  [<c0153288>] worker_thread+0x88/0xe0
Sep  3 15:46:24 atomicity kernel: [21000.796569]  [<c0157930>] ? autoremove_wake_function+0x0/0x40
Sep  3 15:46:24 atomicity kernel: [21000.796590]  [<c0153200>] ? worker_thread+0x0/0xe0
Sep  3 15:46:24 atomicity kernel: [21000.796604]  [<c015763c>] kthread+0x7c/0x90
Sep  3 15:46:24 atomicity kernel: [21000.796618]  [<c01575c0>] ? kthread+0x0/0x90
Sep  3 15:46:24 atomicity kernel: [21000.796635]  [<c0103f17>] kernel_thread_helper+0x7/0x10

-- 
Karmic Intel GPU hang
https://bugs.launchpad.net/bugs/424055
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs at lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs