attempt to change volume causes graphics hang

[Rozisoft]

Ubuntu GNU/Linux 9.04
xine 0.99.6

How to reproduce:
Running Firefox 3.5 RC3 with two tabs
Xine playing .avi movie

Start playing movie and try to raise xine volume level with Shift+v and everything hangs except the cursor which can still be moved around.

messages from syslog around the time of problem:

Jun 27 20:29:43 Rozisoft kernel: [ 362.193341] INFO: task events/0:9 blocked for more than 120 seconds.
Jun 27 20:29:43 Rozisoft kernel: [ 362.193348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jun 27 20:29:43 Rozisoft kernel: [ 362.193354] events/0 D 0000002a 0 9 2
Jun 27 20:29:43 Rozisoft kernel: [ 362.193362] f709bf2c 00000046 9aa92c02 0000002a c49cb558 f7096130 c05a9324 c067a520
Jun 27 20:29:43 Rozisoft kernel: [ 362.193376] c067a520 c0677144 c0431e28 f7096130 f70963c4 c49cb520 00000000 00000000
Jun 27 20:29:43 Rozisoft kernel: [ 362.193389] c49cb558 c0431e28 c49cb520 f7096130 00000000 c067a520 c2e7f040 f70963c4
Jun 27 20:29:43 Rozisoft kernel: [ 362.193402] Call Trace:
Jun 27 20:29:43 Rozisoft kernel: [ 362.193416] [<c04286f4>] ? __schedule+0x75f/0x7bc
Jun 27 20:29:43 Rozisoft kernel: [ 362.193424] [<c0137511>] ? lock_timer_base+0x1f/0x3e
Jun 27 20:29:43 Rozisoft kernel: [ 362.193434] [<c0428e33>] __mutex_lock_common+0xdf/0x12f
Jun 27 20:29:43 Rozisoft kernel: [ 362.193441] [<c0428e95>] __mutex_lock_slowpath+0x12/0x15
Jun 27 20:29:43 Rozisoft kernel: [ 362.193448] [<c0428f38>] ? mutex_lock+0x1a/0x28
Jun 27 20:29:43 Rozisoft kernel: [ 362.193455] [<c0428f38>] mutex_lock+0x1a/0x28
Jun 27 20:29:43 Rozisoft kernel: [ 362.193485] [<f854f672>] i915_gem_retire_work_handler+0x22/0x57 [i915]
Jun 27 20:29:43 Rozisoft kernel: [ 362.193493] [<c013ce90>] worker_thread+0x13a/0x1bf
Jun 27 20:29:43 Rozisoft kernel: [ 362.193518] [<f854f650>] ? i915_gem_retire_work_handler+0x0/0x57 [i915]
Jun 27 20:29:43 Rozisoft kernel: [ 362.193527] [<c013ff67>] ? autoremove_wake_function+0x0/0x33
Jun 27 20:29:43 Rozisoft kernel: [ 362.193534] [<c013cd56>] ? worker_thread+0x0/0x1bf
Jun 27 20:29:43 Rozisoft kernel: [ 362.193541] [<c013fc70>] kthread+0x45/0x6b
Jun 27 20:29:43 Rozisoft kernel: [ 362.193548] [<c013fc2b>] ? kthread+0x0/0x6b

[Reinhard Tartler (siretart)]

no userspace application must be able to crash the video driver. your kernel log indicates that your kernel is hung in some sort of deadlock in the intel driver. I'm therefore reassigning to the intel driver, but I suspect the actual problem is already fixed in a later kernel version. The xorg maintainers in ubuntu should know best.

[Geir Ove Myhr (gomyhr)]

Could you please run `apport-collect 393041` to upload relevant xorg logs to this bug report? (or failing that, at least /etc/X11/xorg.conf, /var/log/Xorg.0.log and output of `lspci -vvnn`).

[Bryce Harrington (bryce)]

Hi shay-rossignol,

Please attach the output of `lspci -vvnn`, and attach your /var/log/Xorg.0.log (and maybe Xorg.0.log.old) file from after reproducing this issue. If you've made any customizations to your /etc/X11/xorg.conf please attach that as well.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Bryce Harrington (bryce)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.