[pulseaudio-discuss] "Unable to create stream: Connection terminated" happening relatively frequently in ubuntu 11.10

[Dan Kegel]

I'm running a buildbot that runs all the wine tests several times an hour.
All was well until I upgraded from ubuntu 10.04 to 11.10... then
I started to see occasional errors like
 ALSA lib pcm_pulse.c:746:(pulse_prepare) PulseAudio: Unable to create
stream: Connection terminated
or
 ALSA lib pulse.c:229:(pulse_connect) PulseAudio: Unable to connect:
Connection terminated

This blows my buildbot out of the water; nobody likes to be told that their
patch to add a comment to notepad.c has broken wine's audio support.

I've filed bugs for this at winehq.org and ubuntu,
http://bugs.winehq.org/show_bug.cgi?id=28653
https://bugs.launchpad.net/bugs/874770
but nobody has come up with any suggestions yet.

I downloaded the pulseaudio sources and built src/test/connect-stress.c,
and am running it in a loop, but since it outputs "Connection terminated"
in normal operation, it's kind of hard to tell whether it's detecting
the problem or not :-)

This is the main source of spurious failures in my buildbot.
Any ideas what could be causing the increased error rate, or
how I might go about debugging it?

FWIW, this is on an i7.

Thanks,
Dan