Messages in this thread | | | Subject | Re: 2.6.15-rt18, alsa sequencer, rosegarden -> alsa hangs | From | Fernando Lopez-Lezcano <> | Date | Tue, 07 Mar 2006 22:53:55 -0800 |
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On Tue, 2006-03-07 at 23:06 +0100, Ingo Molnar wrote: > * Fernando Lopez-Lezcano <nando@ccrma.Stanford.EDU> wrote: > > > The symptoms are as follows: > > - start jack using qjackctl > > - start qsynth (gui front end for fluidsynth, a synth) > > - start rosegarden (midi sequencer and audio recorder) > > - load a midi file into rosegarden > > - midi file plays successfully > > - close rosegarden > > at this point one of the threads of rosegarden fails to exit and stays > > forever in the process list, in a ps axuw it shows as: > > > > nando 5484 0.0 0.0 0 0 pts/1 D 13:32 0:00 [rosegardenseque] > > > > Anything else that I try to stop that touches the alsa sequencer never > > dies (qjackctl, vkeybd, qsynth, etc). Anything I try to start that tries > > to use it does not start. This happened with two widely different > > could you get a tasklist-dump? It's either SysRq-T, or: > > echo t > /proc/sysrq-trigger > > that should dump all tasks and their backtraces - including the hung > rosegardensequencer task.
I'll try to do that tomorrow.
In the meanwhile I think this might be the same problem that was solved in -rt20? (building it as I type). I have been trying to catch up to the subset of lkml that I manage to read and found some reports that apparently point to similar problems with the alsa sequencer (Rui, in particular, and then Karsten's post in this thread).
-- Fernando
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