Created attachment 20755 [details] kernel configuration With kernel 2.6.29, my laptop locks up about once or twice a day. I'm in an X.org session, and everything freezes except the mouse pointer, which I can move. Clicks don't have any effect though. The display is not updated. The keyboard doesn't work, Ctrl-Backspace has no effect. I can do a SysRq emergency sync but not reboot, so had to use the power button for that. There is absolutely nothing in the logs, but the emergency sync log entries do show up. I don't remember this happening with 2.6.28.8, but it happens daily with 2.6.29. The system is a Thinkpad T61 running Debian x86_64, X.org server 1.5.99.902-1, xserver-xorg-video-intel 2.6.1-1.
(In reply to comment #0) > keyboard doesn't work, Ctrl-Backspace has no effect. I can do a SysRq >emergency sync but not reboot, Correction: I could reboot with SysRq-B.
Please generate a kernel task trace after it has failed. Do add log_buf_len=2M to the kernel boot command line alt-sysrq-6 to set the loglevel alt-sysrq-t to generate the trace alt-sysrq-s alt-sysrq-b and attach the resulting kernel logs to this bug. Please try to avoid getting it wordwrapped, as so often happens. Thanks.
Created attachment 20780 [details] task trace after crash The kernel log contained some USB resume messages. Those are the first messages in 3 hours. I think the crash happened at that point, or very shortly after. I didn't plug or unplug any USB devices. (I have a USB keyboard/mouse attached.)
On Sunday 12 April 2009, Marcus Better wrote: > > >The following bug entry is on the current >list of known regressions > >from 2.6.28. Please verify if it still >should be listed and let me know > > Yes, I haven't seen a fix so I think it's still valid.
Bug disappeared magically, possibly after upgrade to 2.6.29.1. Since it used to appear daily and now hasn't shown up in weeks, I'll close the report.
On Sunday 17 May 2009, Marcus Better wrote: > Rafael J. Wysocki wrote: > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12980 > > Subject : lockup in X.org > > Submitter : Marcus Better <marcus@better.se> > > Date : 2009-03-31 08:58 (47 days old) > > Bug went away for unknown reason, hasn't occurred in more than a month.
(In reply to comment #6) > On Sunday 17 May 2009, Marcus Better wrote: > > Bug went away for unknown reason, hasn't occurred in more than a month. I shouldn't have said that. Of course the bug started recurring. I'm posting some more task traces. These are from kernel 2.6.29.3.
Created attachment 21484 [details] task trace (kernel 2.6.29.3)
Created attachment 21485 [details] task trace (kernel 2.6.29.3)
Created attachment 21486 [details] task trace (kernel 2.6.29.3)
On Monday 08 June 2009, Marcus Better wrote: > > The following bug entry is on the current list of known regressions > > introduced between 2.6.28 and 2.6.29. Please verify if it still should > > be listed and let me know (either way). > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12980 > > Subject : lockup in X.org > > Submitter : Marcus Better <marcus@better.se> > > Date : 2009-03-31 08:58 (69 days old) > > Still present in 2.6.29.4.
I believe this could be an X driver bug: https://bugs.freedesktop.org/show_bug.cgi?id=20893 Should we close this?