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Message #09779
Re: [Question #78789]: alsa suddenly stopped working (dmix socket disappeared)
Question #78789 on alsa-lib in ubuntu changed:
https://answers.launchpad.net/ubuntu/+source/alsa-lib/+question/78789
Marius Gedminas posted a new comment:
I managed to fix the error with some deep black magic:
strace -o /tmp/out mplayer -ao alsa file.mp3
watch it bomb out with an error
grep shmget /tmp/out
get one important line:
shmget(5678293, 384, IPC_CREAT|0660) = 48824355
shmrm -M 5678293
Looks like the process that previously acted as the dmix server died,
but did not free the SysV shared memory segment.
I may have caused the problem by killing a firefox instance that stayed
behind (with its 400 megs of virtual memory allocated) after I closed
all of its windows.
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