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[Janne Moren <jan.moren@xxxxxxxxx>]

Public bug reported:

Binary package hint: xorg

Occasionally the display will freeze, and a reboot is necessary. It
always seems to happen when I do something graphical; by far most common
is when I move between desktops using the pager or key combination, but
it has happened once or twice at other times. I can log in using ssh,
but killing X is impossible, necessitating a reboot.

All system-related info is hopefully attached to this report.

This is what I find with dmesg:

[15447.042217] INFO: task i915:859 blocked for more than 120 seconds.
[15447.042223] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[15447.042227] i915          D 00000000ffffffff     0   859      2 0x00000000
[15447.042235]  ffff880100773d40 0000000000000046 0000000000015bc0 0000000000015bc0
[15447.042241]  ffff8801016c4890 ffff880100773fd8 0000000000015bc0 ffff8801016c44d0
[15447.042247]  0000000000015bc0 ffff880100773fd8 0000000000015bc0 ffff8801016c4890
[15447.042253] Call Trace:
[15447.042268]  [<ffffffff8153f897>] __mutex_lock_slowpath+0xe7/0x170
[15447.042278]  [<ffffffff81058620>] ? finish_task_switch+0x50/0xe0
[15447.042283]  [<ffffffff8153f78b>] mutex_lock+0x2b/0x50
[15447.042310]  [<ffffffffa022437d>] i915_gem_retire_work_handler+0x3d/0xa0 [i915]
[15447.042328]  [<ffffffffa0224340>] ? i915_gem_retire_work_handler+0x0/0xa0 [i915]
[15447.042337]  [<ffffffff81080777>] run_workqueue+0xc7/0x1a0
[15447.042342]  [<ffffffff810808f3>] worker_thread+0xa3/0x110
[15447.042349]  [<ffffffff81085320>] ? autoremove_wake_function+0x0/0x40
[15447.042354]  [<ffffffff81080850>] ? worker_thread+0x0/0x110
[15447.042359]  [<ffffffff81084fa6>] kthread+0x96/0xa0
[15447.042365]  [<ffffffff810141ea>] child_rip+0xa/0x20
[15447.042371]  [<ffffffff81084f10>] ? kthread+0x0/0xa0
[15447.042375]  [<ffffffff810141e0>] ? child_rip+0x0/0x20
[15447.042390] INFO: task Xorg:1204 blocked for more than 120 seconds.
[15447.042393] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[15447.042396] Xorg          D 0000000000000000     0  1204      1 0x00400004
[15447.042402]  ffff8800da657cb8 0000000000000082 0000000000015bc0 0000000000015bc0
[15447.042408]  ffff8800da634890 ffff8800da657fd8 0000000000015bc0 ffff8800da6344d0
[15447.042414]  0000000000015bc0 ffff8800da657fd8 0000000000015bc0 ffff8800da634890
[15447.042419] Call Trace:
[15447.042425]  [<ffffffff8153f897>] __mutex_lock_slowpath+0xe7/0x170
[15447.042432]  [<ffffffff8105b1d5>] ? wake_up_process+0x15/0x20
[15447.042437]  [<ffffffff8153f78b>] mutex_lock+0x2b/0x50
[15447.042452]  [<ffffffffa0223e36>] i915_gem_busy_ioctl+0x46/0xd0 [i915]
[15447.042470]  [<ffffffffa0138e2a>] drm_ioctl+0x27a/0x480 [drm]
[15447.042485]  [<ffffffffa0223df0>] ? i915_gem_busy_ioctl+0x0/0xd0 [i915]
[15447.042492]  [<ffffffff81088432>] ? enqueue_hrtimer+0x82/0xd0
[15447.042499]  [<ffffffff810893b9>] ? __hrtimer_start_range_ns+0x189/0x400
[15447.042506]  [<ffffffff81152a92>] vfs_ioctl+0x22/0xa0
[15447.042511]  [<ffffffff81152d41>] do_vfs_ioctl+0x81/0x380
[15447.042516]  [<ffffffff811530c1>] sys_ioctl+0x81/0xa0
[15447.042522]  [<ffffffff815414be>] ? do_device_not_available+0xe/0x10
[15447.042528]  [<ffffffff810131b2>] system_call_fastpath+0x16/0x1b

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+5ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
Architecture: amd64
Date: Mon May 10 13:47:25 2010
DkmsStatus:
 blcr, 0.8.2, 2.6.32-22-generic, x86_64: installed 
 blcr, 0.8.2, 2.6.32-21-generic, x86_64: installed
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: Panasonic Corporation CF-S9JYEBDR
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=a1f2d382-4e79-41b4-ab46-29ae811e5102 ro quiet splash
ProcEnviron:
 LANGUAGE=sv:en
 PATH=(custom, user)
 LANG=sv_SE.utf8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
dmi.bios.date: 03/11/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V1.00L19
dmi.board.asset.tag: No Asset Tag
dmi.board.name: CFS9-1
dmi.board.vendor: Panasonic Corporation
dmi.board.version: 1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Panasonic Corporation
dmi.chassis.version: 001
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.00L19:bd03/11/2010:svnPanasonicCorporation:pnCF-S9JYEBDR:pvr001:rvnPanasonicCorporation:rnCFS9-1:rvr1:cvnPanasonicCorporation:ct10:cvr001:
dmi.product.name: CF-S9JYEBDR
dmi.product.version: 001
dmi.sys.vendor: Panasonic Corporation
glxinfo: Error: [Errno 2] Filen eller katalogen finns inte
system:
 distro:             Ubuntu
 codename:           lucid
 architecture:       x86_64
 kernel:             2.6.32-22-generic

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug freeze lucid

-- 
Xorg occasionally freezes during activity
https://bugs.launchpad.net/bugs/578085
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