I followed the instructions at https://wiki.ubuntu.com/X/Troubleshooting/Freeze and was able to login to the machine with ssh.
Here is the information provided right after the crash. In dmesg there is a [ 600.692679] INFO: task i915/1:374 blocked for more than 120 seconds. [ 600.692688] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 600.692694] i915/1 D 0000000000000000 0 374 2 0x00000000 [ 600.692706] ffff880116d25d70 0000000000000046 0000000000000001 0000000000015880 [ 600.692717] ffff880118793110 0000000000015880 0000000000015880 0000000000015880 [ 600.692726] 0000000000015880 ffff880118793110 0000000000015880 0000000000015880 [ 600.692736] Call Trace: [ 600.692755] [<ffffffff81528847>] __mutex_lock_slowpath+0xd7/0x160 [ 600.692764] [<ffffffff81528746>] mutex_lock+0x26/0x50 [ 600.692811] [<ffffffffa00858d8>] i915_gem_retire_work_handler+0x38/0x90 [i915] [ 600.692839] [<ffffffffa00858a0>] ? i915_gem_retire_work_handler+0x0/0x90 [i915] [ 600.692851] [<ffffffff810737f5>] run_workqueue+0x95/0x170 [ 600.692860] [<ffffffff81073974>] worker_thread+0xa4/0x120 [ 600.692868] [<ffffffff81078b20>] ? autoremove_wake_function+0x0/0x40 [ 600.692877] [<ffffffff810738d0>] ? worker_thread+0x0/0x120 [ 600.692884] [<ffffffff81078736>] kthread+0xa6/0xb0 [ 600.692893] [<ffffffff810130ea>] child_rip+0xa/0x20 [ 600.692901] [<ffffffff81078690>] ? kthread+0x0/0xb0 [ 600.692908] [<ffffffff810130e0>] ? child_rip+0x0/0x20 ** Attachment added: "dri_debug-20100128.tgz" http://launchpadlibrarian.net/38487619/dri_debug-20100128.tgz -- 64 bit Webots simulator freezes system with Intel GM965 https://bugs.launchpad.net/bugs/513523 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
