Ugh - happened to me too - after the latest kernel upgrade (don't know if it's related). I'm running: adri...@frost:~$ uname -a Linux frost 2.6.31-16-generic #53-Ubuntu SMP Tue Dec 8 04:01:29 UTC 2009 i686 GNU/Linux adri...@frost:~$ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 82Q35 Express Integrated Graphics Controller (rev 02)
The thing is - it seems to be crashing only when xscreensaver is running (I have some GL screensavers) - but it's not always reproductible. I have turned off dpms, but it doesn't help. I can login to the computer via ssh, but commands like xset can't run (start, but remain "hanged"). Here is some output from dmesg: [176880.528048] INFO: task i915/0:315 blocked for more than 120 seconds. [176880.528054] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [176880.528058] i915/0 D c08145c0 0 315 2 0x00000000 [176880.528066] f6991f04 00000046 f64e4b8c c08145c0 f64e4df8 c08145c0 dd47cd37 00009fbf [176880.528079] c08145c0 c08145c0 f64e4df8 c08145c0 dd47bfb4 00009fbf c08145c0 eed81500 [176880.528090] f64e4b60 f697c414 f697c418 ffffffff f6991f30 c056fdd6 f6901920 f697c41c [176880.528101] Call Trace: [176880.528114] [<c056fdd6>] __mutex_lock_slowpath+0xc6/0x130 [176880.528120] [<c056fcf0>] mutex_lock+0x20/0x40 [176880.528150] [<f840ac0a>] i915_gem_retire_work_handler+0x2a/0x70 [i915] [176880.528158] [<c0157a7e>] run_workqueue+0x6e/0x140 [176880.528181] [<f840abe0>] ? i915_gem_retire_work_handler+0x0/0x70 [i915] [176880.528188] [<c0157bd8>] worker_thread+0x88/0xe0 [176880.528194] [<c015c280>] ? autoremove_wake_function+0x0/0x40 [176880.528200] [<c0157b50>] ? worker_thread+0x0/0xe0 [176880.528205] [<c015bf8c>] kthread+0x7c/0x90 [176880.528210] [<c015bf10>] ? kthread+0x0/0x90 [176880.528216] [<c0104007>] kernel_thread_helper+0x7/0x10 ...and from messages: Dec 17 14:23:54 localhost kernel: [176880.528058] i915/0 D c08145c0 0 315 2 0x00000000 Dec 17 14:23:54 localhost kernel: [176880.528066] f6991f04 00000046 f64e4b8c c08145c0 f64e4df8 c08145c0 dd47cd37 00009fbf Dec 17 14:23:54 localhost kernel: [176880.528079] c08145c0 c08145c0 f64e4df8 c08145c0 dd47bfb4 00009fbf c08145c0 eed81500 Dec 17 14:23:54 localhost kernel: [176880.528090] f64e4b60 f697c414 f697c418 ffffffff f6991f30 c056fdd6 f6901920 f697c41c Dec 17 14:23:54 localhost kernel: [176880.528101] Call Trace: Dec 17 14:23:54 localhost kernel: [176880.528114] [<c056fdd6>] __mutex_lock_slowpath+0xc6/0x130 Dec 17 14:23:54 localhost kernel: [176880.528120] [<c056fcf0>] mutex_lock+0x20/0x40 Dec 17 14:23:54 localhost kernel: [176880.528150] [<f840ac0a>] i915_gem_retire_work_handler+0x2a/0x70 [i915] Dec 17 14:23:54 localhost kernel: [176880.528158] [<c0157a7e>] run_workqueue+0x6e/0x140 Dec 17 14:23:54 localhost kernel: [176880.528181] [<f840abe0>] ? i915_gem_retire_work_handler+0x0/0x70 [i915] Dec 17 14:23:54 localhost kernel: [176880.528188] [<c0157bd8>] worker_thread+0x88/0xe0 Dec 17 14:23:54 localhost kernel: [176880.528194] [<c015c280>] ? autoremove_wake_function+0x0/0x40 Dec 17 14:23:54 localhost kernel: [176880.528200] [<c0157b50>] ? worker_thread+0x0/0xe0 Dec 17 14:23:54 localhost kernel: [176880.528205] [<c015bf8c>] kthread+0x7c/0x90 Dec 17 14:23:54 localhost kernel: [176880.528210] [<c015bf10>] ? kthread+0x0/0x90 Dec 17 14:23:54 localhost kernel: [176880.528216] [<c0104007>] kernel_thread_helper+0x7/0x10 I will uninstall xscreensaver - hopefully I will no longer trigger the bug. I'll let you know if I find out something else... -- [i945G] karmic: INFO: task i915/* blocked for more than 120 seconds. https://bugs.launchpad.net/bugs/451518 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
