Package: linux-2.6 Version: 2.6.36~rc6-1~experimental.1 Severity: normal When browsing the web, I experienced a lockup of Xorg. It did not respond further (including to Ctrl-Alt-F1), but I was able to SSH in from another machine on the network. Killing Xorg was ineffective: the screen did not change. I rebooted the machine and found the following in the kernel log:
Oct 6 19:26:19 lakeview kernel: [71400.520086] INFO: task Xorg:4165 blocked for more than 120 seconds. Oct 6 19:26:19 lakeview kernel: [71400.520092] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 6 19:26:19 lakeview kernel: [71400.520097] Xorg D ffff880037afe028 0 4165 1819 0x00400004 Oct 6 19:26:19 lakeview kernel: [71400.520106] ffff8800988f4420 0000000000000082 ffff88009dd01fd8 ffff8800bcdd4af0 Oct 6 19:26:19 lakeview kernel: [71400.520115] 0000000000014940 0000000000014940 ffff88009dd01fd8 0000000000014940 Oct 6 19:26:19 lakeview kernel: [71400.520123] 0000000000014940 ffff8800988f46f8 ffff8800988f4700 ffff8800988f4420 Oct 6 19:26:19 lakeview kernel: [71400.520131] Call Trace: Oct 6 19:26:19 lakeview kernel: [71400.520144] [<ffffffff8130b66e>] ? __mutex_lock_common+0x127/0x193 Oct 6 19:26:19 lakeview kernel: [71400.520151] [<ffffffff8130b7a6>] ? mutex_lock+0x1a/0x33 Oct 6 19:26:19 lakeview kernel: [71400.520189] [<ffffffffa0670f93>] ? i915_gem_fault+0x4b/0x17d [i915] Oct 6 19:26:19 lakeview kernel: [71400.520197] [<ffffffff810c8c9a>] ? __do_fault+0x52/0x3f3 Oct 6 19:26:19 lakeview kernel: [71400.520206] [<ffffffff8103f7d9>] ? default_wake_function+0x0/0xf Oct 6 19:26:19 lakeview kernel: [71400.520213] [<ffffffff810c9b6f>] ? handle_mm_fault+0x427/0x9f4 Oct 6 19:26:19 lakeview kernel: [71400.520220] [<ffffffff81036ebe>] ? __wake_up_sync_key+0x3f/0x57 Oct 6 19:26:19 lakeview kernel: [71400.520227] [<ffffffff812c1974>] ? sk_wake_async+0x19/0x3c Oct 6 19:26:19 lakeview kernel: [71400.520234] [<ffffffff810f9fbb>] ? pollwake+0x0/0x4e Oct 6 19:26:19 lakeview kernel: [71400.520240] [<ffffffff812c0664>] ? unix_destruct_scm+0x6d/0x74 Oct 6 19:26:19 lakeview kernel: [71400.520248] [<ffffffff8130f54d>] ? do_page_fault+0x2b9/0x2ce Oct 6 19:26:19 lakeview kernel: [71400.520255] [<ffffffff8130c915>] ? page_fault+0x25/0x30 Oct 6 19:26:19 lakeview kernel: [71400.520264] [<ffffffff81193255>] ? __copy_user_nocache+0x55/0xb8 Oct 6 19:26:19 lakeview kernel: [71400.520283] [<ffffffffa066ff55>] ? i915_gem_pwrite_ioctl+0x1d1/0x5d7 [i915] Oct 6 19:26:19 lakeview kernel: [71400.520291] [<ffffffff81249372>] ? __sock_recvmsg_nosec+0x29/0x69 Oct 6 19:26:19 lakeview kernel: [71400.520298] [<ffffffff8124bbee>] ? sock_aio_read+0xb6/0xc5 Oct 6 19:26:19 lakeview kernel: [71400.520317] [<ffffffffa061d220>] ? drm_ioctl+0x24e/0x322 [drm] Oct 6 19:26:19 lakeview kernel: [71400.520335] [<ffffffffa066fd84>] ? i915_gem_pwrite_ioctl+0x0/0x5d7 [i915] Oct 6 19:26:19 lakeview kernel: [71400.520342] [<ffffffff810f91c8>] ? do_vfs_ioctl+0x4a2/0x4ef Oct 6 19:26:19 lakeview kernel: [71400.520348] [<ffffffff810f9260>] ? sys_ioctl+0x4b/0x6f Oct 6 19:26:19 lakeview kernel: [71400.520356] [<ffffffff810eceee>] ? sys_read+0x5f/0x6b Oct 6 19:26:19 lakeview kernel: [71400.520363] [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b Oct 6 19:26:19 lakeview kernel: [71400.520380] INFO: task compiz:4322 blocked for more than 120 seconds. Oct 6 19:26:19 lakeview kernel: [71400.520384] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 6 19:26:19 lakeview kernel: [71400.520389] compiz D ffff880037afe028 0 4322 4193 0x00000000 Oct 6 19:26:19 lakeview kernel: [71400.520396] ffff8800bb984420 0000000000000082 dead000000200200 ffff8800bd90b680 Oct 6 19:26:19 lakeview kernel: [71400.520404] 0000000000014940 0000000000014940 ffff88009de37fd8 0000000000014940 Oct 6 19:26:19 lakeview kernel: [71400.520411] 0000000000014940 ffff8800bb9846f8 ffff8800bb984700 ffff8800bb984420 Oct 6 19:26:19 lakeview kernel: [71400.520419] Call Trace: Oct 6 19:26:19 lakeview kernel: [71400.520426] [<ffffffff8130b66e>] ? __mutex_lock_common+0x127/0x193 Oct 6 19:26:19 lakeview kernel: [71400.520445] [<ffffffffa066f1af>] ? i915_gem_object_set_to_gtt_domain+0x8d/0x9c [i915] Oct 6 19:26:19 lakeview kernel: [71400.520452] [<ffffffff8130b7a6>] ? mutex_lock+0x1a/0x33 Oct 6 19:26:19 lakeview kernel: [71400.520470] [<ffffffffa066efd0>] ? i915_gem_busy_ioctl+0x4f/0xbf [i915] Oct 6 19:26:19 lakeview kernel: [71400.520487] [<ffffffffa061d220>] ? drm_ioctl+0x24e/0x322 [drm] Oct 6 19:26:19 lakeview kernel: [71400.520505] [<ffffffffa066ef81>] ? i915_gem_busy_ioctl+0x0/0xbf [i915] Oct 6 19:26:19 lakeview kernel: [71400.520512] [<ffffffff810f91c8>] ? do_vfs_ioctl+0x4a2/0x4ef Oct 6 19:26:19 lakeview kernel: [71400.520519] [<ffffffff81064925>] ? ktime_get_ts+0x66/0xab Oct 6 19:26:19 lakeview kernel: [71400.520525] [<ffffffff810f9260>] ? sys_ioctl+0x4b/0x6f Oct 6 19:26:19 lakeview kernel: [71400.520531] [<ffffffff810fab17>] ? sys_poll+0x45/0xaf Oct 6 19:26:19 lakeview kernel: [71400.520537] [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b Oct 6 19:26:19 lakeview kernel: [71400.520558] INFO: task kworker/u:1:24777 blocked for more than 120 seconds. Oct 6 19:26:19 lakeview kernel: [71400.520562] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 6 19:26:19 lakeview kernel: [71400.520567] kworker/u:1 D ffff880037afe028 0 24777 2 0x00000000 Oct 6 19:26:19 lakeview kernel: [71400.520574] ffff8800589a2210 0000000000000046 ffff8800589a24e8 ffff8800bcdd4af0 Oct 6 19:26:19 lakeview kernel: [71400.520582] 0000000000014940 0000000000014940 ffff8800626cffd8 0000000000014940 Oct 6 19:26:19 lakeview kernel: [71400.520590] 0000000000014940 ffff8800589a24e8 ffff8800589a24f0 ffff8800589a2210 Oct 6 19:26:19 lakeview kernel: [71400.520597] Call Trace: Oct 6 19:26:19 lakeview kernel: [71400.520604] [<ffffffff8130b66e>] ? __mutex_lock_common+0x127/0x193 Oct 6 19:26:19 lakeview kernel: [71400.520612] [<ffffffff8103db15>] ? finish_task_switch+0x34/0xb4 Oct 6 19:26:19 lakeview kernel: [71400.520618] [<ffffffff8130b7a6>] ? mutex_lock+0x1a/0x33 Oct 6 19:26:19 lakeview kernel: [71400.520636] [<ffffffffa066f830>] ? i915_gem_retire_work_handler+0x27/0x96 [i915] Oct 6 19:26:19 lakeview kernel: [71400.520655] [<ffffffffa066f809>] ? i915_gem_retire_work_handler+0x0/0x96 [i915] Oct 6 19:26:19 lakeview kernel: [71400.520663] [<ffffffff8105850e>] ? process_one_work+0x1d1/0x2ee Oct 6 19:26:19 lakeview kernel: [71400.520670] [<ffffffff81059e70>] ? worker_thread+0x12d/0x240 Oct 6 19:26:19 lakeview kernel: [71400.520676] [<ffffffff81059d43>] ? worker_thread+0x0/0x240 Oct 6 19:26:19 lakeview kernel: [71400.520682] [<ffffffff81059d43>] ? worker_thread+0x0/0x240 Oct 6 19:26:19 lakeview kernel: [71400.520689] [<ffffffff8105ccf4>] ? kthread+0x7a/0x82 Oct 6 19:26:19 lakeview kernel: [71400.520697] [<ffffffff81009824>] ? kernel_thread_helper+0x4/0x10 Oct 6 19:26:19 lakeview kernel: [71400.520703] [<ffffffff8105cc7a>] ? kthread+0x0/0x82 Oct 6 19:26:19 lakeview kernel: [71400.520709] [<ffffffff81009820>] ? kernel_thread_helper+0x0/0x10 Oct 6 19:28:19 lakeview kernel: [71520.520107] INFO: task Xorg:4165 blocked for more than 120 seconds. Oct 6 19:28:19 lakeview kernel: [71520.520113] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 6 19:28:19 lakeview kernel: [71520.520118] Xorg D ffff880037afe028 0 4165 1819 0x00400004 Oct 6 19:28:19 lakeview kernel: [71520.520127] ffff8800988f4420 0000000000000082 ffff88009dd01fd8 ffff8800bcdd4af0 Oct 6 19:28:19 lakeview kernel: [71520.520136] 0000000000014940 0000000000014940 ffff88009dd01fd8 0000000000014940 Oct 6 19:28:19 lakeview kernel: [71520.520143] 0000000000014940 ffff8800988f46f8 ffff8800988f4700 ffff8800988f4420 Oct 6 19:28:19 lakeview kernel: [71520.520151] Call Trace: Oct 6 19:28:19 lakeview kernel: [71520.520165] [<ffffffff8130b66e>] ? __mutex_lock_common+0x127/0x193 Oct 6 19:28:19 lakeview kernel: [71520.520172] [<ffffffff8130b7a6>] ? mutex_lock+0x1a/0x33 Oct 6 19:28:19 lakeview kernel: [71520.520211] [<ffffffffa0670f93>] ? i915_gem_fault+0x4b/0x17d [i915] Oct 6 19:28:19 lakeview kernel: [71520.520219] [<ffffffff810c8c9a>] ? __do_fault+0x52/0x3f3 Oct 6 19:28:19 lakeview kernel: [71520.520228] [<ffffffff8103f7d9>] ? default_wake_function+0x0/0xf Oct 6 19:28:19 lakeview kernel: [71520.520235] [<ffffffff810c9b6f>] ? handle_mm_fault+0x427/0x9f4 Oct 6 19:28:19 lakeview kernel: [71520.520242] [<ffffffff81036ebe>] ? __wake_up_sync_key+0x3f/0x57 Oct 6 19:28:19 lakeview kernel: [71520.520249] [<ffffffff812c1974>] ? sk_wake_async+0x19/0x3c Oct 6 19:28:19 lakeview kernel: [71520.520256] [<ffffffff810f9fbb>] ? pollwake+0x0/0x4e Oct 6 19:28:19 lakeview kernel: [71520.520262] [<ffffffff812c0664>] ? unix_destruct_scm+0x6d/0x74 Oct 6 19:28:19 lakeview kernel: [71520.520270] [<ffffffff8130f54d>] ? do_page_fault+0x2b9/0x2ce Oct 6 19:28:19 lakeview kernel: [71520.520277] [<ffffffff8130c915>] ? page_fault+0x25/0x30 Oct 6 19:28:19 lakeview kernel: [71520.520286] [<ffffffff81193255>] ? __copy_user_nocache+0x55/0xb8 Oct 6 19:28:19 lakeview kernel: [71520.520305] [<ffffffffa066ff55>] ? i915_gem_pwrite_ioctl+0x1d1/0x5d7 [i915] Oct 6 19:28:19 lakeview kernel: [71520.520313] [<ffffffff81249372>] ? __sock_recvmsg_nosec+0x29/0x69 Oct 6 19:28:19 lakeview kernel: [71520.520320] [<ffffffff8124bbee>] ? sock_aio_read+0xb6/0xc5 Oct 6 19:28:19 lakeview kernel: [71520.520338] [<ffffffffa061d220>] ? drm_ioctl+0x24e/0x322 [drm] Oct 6 19:28:19 lakeview kernel: [71520.520356] [<ffffffffa066fd84>] ? i915_gem_pwrite_ioctl+0x0/0x5d7 [i915] Oct 6 19:28:19 lakeview kernel: [71520.520363] [<ffffffff810f91c8>] ? do_vfs_ioctl+0x4a2/0x4ef Oct 6 19:28:19 lakeview kernel: [71520.520369] [<ffffffff810f9260>] ? sys_ioctl+0x4b/0x6f Oct 6 19:28:19 lakeview kernel: [71520.520377] [<ffffffff810eceee>] ? sys_read+0x5f/0x6b Oct 6 19:28:19 lakeview kernel: [71520.520384] [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b Oct 6 19:28:19 lakeview kernel: [71520.520401] INFO: task compiz:4322 blocked for more than 120 seconds. Oct 6 19:28:19 lakeview kernel: [71520.520406] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 6 19:28:19 lakeview kernel: [71520.520410] compiz D ffff880037afe028 0 4322 4193 0x00000000 Oct 6 19:28:19 lakeview kernel: [71520.520418] ffff8800bb984420 0000000000000082 dead000000200200 ffff8800bd90b680 Oct 6 19:28:19 lakeview kernel: [71520.520426] 0000000000014940 0000000000014940 ffff88009de37fd8 0000000000014940 Oct 6 19:28:19 lakeview kernel: [71520.520433] 0000000000014940 ffff8800bb9846f8 ffff8800bb984700 ffff8800bb984420 Oct 6 19:28:19 lakeview kernel: [71520.520441] Call Trace: Oct 6 19:28:19 lakeview kernel: [71520.520448] [<ffffffff8130b66e>] ? __mutex_lock_common+0x127/0x193 Oct 6 19:28:19 lakeview kernel: [71520.520467] [<ffffffffa066f1af>] ? i915_gem_object_set_to_gtt_domain+0x8d/0x9c [i915] Oct 6 19:28:19 lakeview kernel: [71520.520474] [<ffffffff8130b7a6>] ? mutex_lock+0x1a/0x33 Oct 6 19:28:19 lakeview kernel: [71520.520492] [<ffffffffa066efd0>] ? i915_gem_busy_ioctl+0x4f/0xbf [i915] Oct 6 19:28:19 lakeview kernel: [71520.520509] [<ffffffffa061d220>] ? drm_ioctl+0x24e/0x322 [drm] Oct 6 19:28:19 lakeview kernel: [71520.520527] [<ffffffffa066ef81>] ? i915_gem_busy_ioctl+0x0/0xbf [i915] Oct 6 19:28:19 lakeview kernel: [71520.520534] [<ffffffff810f91c8>] ? do_vfs_ioctl+0x4a2/0x4ef Oct 6 19:28:19 lakeview kernel: [71520.520541] [<ffffffff81064925>] ? ktime_get_ts+0x66/0xab Oct 6 19:28:19 lakeview kernel: [71520.520547] [<ffffffff810f9260>] ? sys_ioctl+0x4b/0x6f Oct 6 19:28:19 lakeview kernel: [71520.520553] [<ffffffff810fab17>] ? sys_poll+0x45/0xaf Oct 6 19:28:19 lakeview kernel: [71520.520559] [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b Oct 6 19:28:19 lakeview kernel: [71520.520579] INFO: task kworker/u:1:24777 blocked for more than 120 seconds. Oct 6 19:28:19 lakeview kernel: [71520.520583] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 6 19:28:19 lakeview kernel: [71520.520588] kworker/u:1 D ffff880037afe028 0 24777 2 0x00000000 Oct 6 19:28:19 lakeview kernel: [71520.520595] ffff8800589a2210 0000000000000046 ffff8800589a24e8 ffff8800bcdd4af0 Oct 6 19:28:19 lakeview kernel: [71520.520603] 0000000000014940 0000000000014940 ffff8800626cffd8 0000000000014940 Oct 6 19:28:19 lakeview kernel: [71520.520611] 0000000000014940 ffff8800589a24e8 ffff8800589a24f0 ffff8800589a2210 Oct 6 19:28:19 lakeview kernel: [71520.520618] Call Trace: Oct 6 19:28:19 lakeview kernel: [71520.520625] [<ffffffff8130b66e>] ? __mutex_lock_common+0x127/0x193 Oct 6 19:28:19 lakeview kernel: [71520.520633] [<ffffffff8103db15>] ? finish_task_switch+0x34/0xb4 Oct 6 19:28:19 lakeview kernel: [71520.520639] [<ffffffff8130b7a6>] ? mutex_lock+0x1a/0x33 Oct 6 19:28:19 lakeview kernel: [71520.520657] [<ffffffffa066f830>] ? i915_gem_retire_work_handler+0x27/0x96 [i915] Oct 6 19:28:19 lakeview kernel: [71520.520676] [<ffffffffa066f809>] ? i915_gem_retire_work_handler+0x0/0x96 [i915] Oct 6 19:28:19 lakeview kernel: [71520.520684] [<ffffffff8105850e>] ? process_one_work+0x1d1/0x2ee Oct 6 19:28:19 lakeview kernel: [71520.520691] [<ffffffff81059e70>] ? worker_thread+0x12d/0x240 Oct 6 19:28:19 lakeview kernel: [71520.520697] [<ffffffff81059d43>] ? worker_thread+0x0/0x240 Oct 6 19:28:19 lakeview kernel: [71520.520703] [<ffffffff81059d43>] ? worker_thread+0x0/0x240 Oct 6 19:28:19 lakeview kernel: [71520.520710] [<ffffffff8105ccf4>] ? kthread+0x7a/0x82 Oct 6 19:28:19 lakeview kernel: [71520.520717] [<ffffffff81009824>] ? kernel_thread_helper+0x4/0x10 Oct 6 19:28:19 lakeview kernel: [71520.520724] [<ffffffff8105cc7a>] ? kthread+0x0/0x82 Oct 6 19:28:19 lakeview kernel: [71520.520730] [<ffffffff81009820>] ? kernel_thread_helper+0x0/0x10 This is the first time I've seen this behavior. If you need more information, just ask. -- System Information: Debian Release: squeeze/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 2.6.36-rc6-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash -- brian m. carlson / brian with sandals: Houston, Texas, US +1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
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