[Bug 421032] [NEW] [GM45] task xorg/i915 blocked after resume

[Kai Jauch]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

After resume I just saw the wallpaper and mouse pointer, couldn't switch
ttys. Login via ssh was very slow, but managed to reboot remotely.

Snippet from kern.log (see attached file for complete log):

[60000.692263] INFO: task Xorg:3295 blocked for more than 120 seconds.
[60000.692272] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[60000.692279] Xorg          D 0000000000000000     0  3295   3294 0x00400004
[60000.692290]  ffff88011a0adcb8 0000000000000082 ffff88011a0adc90 0000000000015580
[60000.692301]  ffff88011a1c03b0 0000000000015580 0000000000015580 0000000000015580
[60000.692310]  0000000000015580 ffff88011a1c03b0 0000000000015580 0000000000015580
[60000.692319] Call Trace:
[60000.692339]  [<ffffffff8151f2a7>] __mutex_lock_slowpath+0xd7/0x160
[60000.692351]  [<ffffffff814202d0>] ? sock_aio_write+0x0/0x150
[60000.692359]  [<ffffffff8151f1a6>] mutex_lock+0x26/0x50
[60000.692409]  [<ffffffffa0060a56>] i915_gem_throttle_ioctl+0x36/0x90 [i915]
[60000.692448]  [<ffffffffa0026cae>] drm_ioctl+0x17e/0x3a0 [drm]
[60000.692460]  [<ffffffff81032439>] ? default_spin_lock_flags+0x9/0x10
[60000.692470]  [<ffffffff8152056a>] ? _spin_lock_irqsave+0x2a/0x40
[60000.692481]  [<ffffffff81128d7c>] vfs_ioctl+0x7c/0xa0
[60000.692488]  [<ffffffff81129349>] do_vfs_ioctl+0x79/0x370
[60000.692496]  [<ffffffff811296c1>] sys_ioctl+0x81/0xa0
[60000.692507]  [<ffffffff81011fc2>] system_call_fastpath+0x16/0x1b

ProblemType: Bug
Architecture: amd64
Date: Sat Aug 29 12:46:53 2009
DistroRelease: Ubuntu 9.10
MachineType: Dell Inc. Latitude E6400
Package: xserver-xorg-video-intel 2:2.8.1-1ubuntu1
PccardctlIdent:
 
PccardctlStatus:
 
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-8-generic root=UUID=4ce12114-4299-47ee-9406-fd5e1d05a0f9 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-8.28-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.6.0~git20090817.7c422387-0ubuntu3
 libdrm2 2.4.12+git20090801.45078630-0ubuntu1
 xserver-xorg-video-intel 2:2.8.1-1ubuntu1
 xserver-xorg-video-ati 1:6.12.99+git20090629.f39cafc5-0ubuntu6
SourcePackage: xserver-xorg-video-intel
Uname: Linux 2.6.31-8-generic x86_64
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 05/11/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A14
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA14:bd05/11/2009:svnDellInc.:pnLatitudeE6400:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E6400
dmi.sys.vendor: Dell Inc.
fglrx: Not loaded
system:
 distro:             Ubuntu
 architecture:       x86_64kernel:             2.6.31-8-generic

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug gm45

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[GM45] task xorg/i915 blocked after resume
https://bugs.launchpad.net/bugs/421032
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