I'm a Linux Mint 9 user on an HP Compaq nc6320 laptop. my pc randomly freezes 2-3 times everyday. The screen freezes and i can't input anything by keyboard or mouse, CTRL-ALT-BACKSPACE or other combinations don't work and the only way to solve this is by a restart. My kernel is version 2.6.32-21-generic and i install all updates. On the last crash i found the following entry in syslog:
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Nov 27 22:33:23 tringos-laptop kernel: [17280.348055] INFO: task i915:361 blocked for more than 120 seconds.
Nov 27 22:33:23 tringos-laptop kernel: [17280.348062] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Nov 27 22:33:23 tringos-laptop kernel: [17280.348068] i915 D 00000ad2 0 361 2 0x00000000
Nov 27 22:33:23 tringos-laptop kernel: [17280.348078] f6a29ed0 00000046 000000f0 00000ad2 00000000 c0846740 f6bc5c5c c0846740
Nov 27 22:33:23 tringos-laptop kernel: [17280.348093] 23b5bbdc 00000f89 c0846740 c0846740 f6bc5c5c c0846740 c0846740 eb578000
Nov 27 22:33:23 tringos-laptop kernel: [17280.348107] 23b5a6ad 00000f89 f6bc59b0 ef481014 ef481018 ffffffff f6a29efc c058a516
Nov 27 22:33:23 tringos-laptop kernel: [17280.348121] Call Trace:
Nov 27 22:33:23 tringos-laptop kernel: [17280.348136] [<c058a516>] __mutex_lock_slowpath+0xc6/0x130
Nov 27 22:33:23 tringos-laptop kernel: [17280.348143] [<c058a435>] mutex_lock+0x25/0x40
Nov 27 22:33:23 tringos-laptop kernel: [17280.348194] [<f8379673>] intel_idle_update+0x33/0x180 [i915]
Nov 27 22:33:23 tringos-laptop kernel: [17280.348204] [<c013eff3>] ? finish_task_switch+0x43/0xc0
Nov 27 22:33:23 tringos-laptop kernel: [17280.348211] [<c058951c>] ? schedule+0x44c/0x840
Nov 27 22:33:23 tringos-laptop kernel: [17280.348220] [<c016369e>] run_workqueue+0x8e/0x150
Nov 27 22:33:23 tringos-laptop kernel: [17280.348256] [<f8379640>] ? intel_idle_update+0x0/0x180 [i915]
Nov 27 22:33:23 tringos-laptop kernel: [17280.348264] [<c01637e4>] worker_thread+0x84/0xe0
Nov 27 22:33:23 tringos-laptop kernel: [17280.348272] [<c0167740>] ? autoremove_wake_function+0x0/0x50
Nov 27 22:33:23 tringos-laptop kernel: [17280.348280] [<c0163760>] ? worker_thread+0x0/0xe0
Nov 27 22:33:23 tringos-laptop kernel: [17280.348286] [<c01674b4>] kthread+0x74/0x80
Nov 27 22:33:23 tringos-laptop kernel: [17280.348292] [<c0167440>] ? kthread+0x0/0x80
Nov 27 22:33:23 tringos-laptop kernel: [17280.348300] [<c0104087>] kernel_thread_helper+0x7/0x10
Nov 27 22:33:23 tringos-laptop kernel: [17280.348322] INFO: task Xorg:1241 blocked for more than 120 seconds.
Nov 27 22:33:23 tringos-laptop kernel: [17280.348326] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Nov 27 22:33:23 tringos-laptop kernel: [17280.348331] Xorg D 000754ec 0 1241 1215 0x00400000
Nov 27 22:33:23 tringos-laptop kernel: [17280.348340] e946be20 00203086 00000034 000754ec 00000000 c0846740 f6b902ac c0846740
Nov 27 22:33:23 tringos-laptop kernel: [17280.348353] 06181709 00000f89 c0846740 c0846740 f6b902ac c0846740 c0846740 eb579c00
Nov 27 22:33:23 tringos-laptop kernel: [17280.348367] 0617d7d1 00000f89 f6b90000 ef481014 ef481018 ffffffff e946be4c c058a516
Nov 27 22:33:23 tringos-laptop kernel: [17280.348381] Call Trace:
Nov 27 22:33:23 tringos-laptop kernel: [17280.348389] [<c058a516>] __mutex_lock_slowpath+0xc6/0x130
Nov 27 22:33:23 tringos-laptop kernel: [17280.348395] [<c058a435>] mutex_lock+0x25/0x40
Nov 27 22:33:23 tringos-laptop kernel: [17280.348429] [<f836a220>] i915_gem_throttle_ioctl+0x30/0x70 [i915]
Nov 27 22:33:23 tringos-laptop kernel: [17280.348465] [<f80eb7cd>] drm_ioctl+0x25d/0x3e0 [drm]
Nov 27 22:33:23 tringos-laptop kernel: [17280.348500] [<f836a1f0>] ? i915_gem_throttle_ioctl+0x0/0x70 [i915]
Nov 27 22:33:23 tringos-laptop kernel: [17280.348520] [<c01410f9>] ? update_curr+0x169/0x2a0
Nov 27 22:33:23 tringos-laptop kernel: [17280.348527] [<c016d4f5>] ? sched_clock_local+0xa5/0x180
Nov 27 22:33:23 tringos-laptop kernel: [17280.348536] [<c016aaaf>] ? __remove_hrtimer+0x2f/0xa0
Nov 27 22:33:23 tringos-laptop kernel: [17280.348543] [<c016ae38>] ? lock_hrtimer_base+0x28/0x50
Nov 27 22:33:23 tringos-laptop kernel: [17280.348551] [<c016bc86>] ? hrtimer_try_to_cancel+0x36/0xb0
Nov 27 22:33:23 tringos-laptop kernel: [17280.348579] [<f80eb570>] ? drm_ioctl+0x0/0x3e0 [drm]
Nov 27 22:33:23 tringos-laptop kernel: [17280.348597] [<c0216231>] vfs_ioctl+0x21/0x90
Nov 27 22:33:23 tringos-laptop kernel: [17280.348603] [<c058951c>] ? schedule+0x44c/0x840
Nov 27 22:33:23 tringos-laptop kernel: [17280.348609] [<c0216519>] do_vfs_ioctl+0x79/0x310
Nov 27 22:33:23 tringos-laptop kernel: [17280.348618] [<c0150ca0>] ? sys_setitimer+0x40/0x90
Nov 27 22:33:23 tringos-laptop kernel: [17280.348624] [<c0216817>] sys_ioctl+0x67/0x80
Nov 27 22:33:23 tringos-laptop kernel: [17280.348631] [<c01033ec>] syscall_call+0x7/0xb