Andrej,
Unless you have autologin enabled, the unity greeter plays a sound theme
file. This triggers the pulseaudio bug and crashes the greeter. Thus, an
endless loop. You can work around this by adding an autologin user to
/etc/lightdm/lightdm.conf.
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I think this may be a bug in eglibc's pthread implementation. In the
following gdb output, I hit a breakpoint on pa_cond_wait(), which is a
small wrapper around pthread_cond_wait(). Then I make a breakpoint on
the following instructure in the next stack frame up. In theory, when
pa_cond_wait()
Sorry that I didn't wrote. I was in hospital for over a month with my son.
I can't confirm if it resolves the issue, because a recent update lets my
system just flicker at the login screen...
So I have to figure out a much bigger problem first.
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** Changed in: pulseaudio (Ubuntu)
Milestone: ubuntu-12.04-beta-2 = ubuntu-12.04
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/932096
Title:
[armel] Pulseaudio crashes other program using
Hmm, seems that I just had a moment of respite. I'm now seeing the
crashes again...
** Changed in: pulseaudio (Ubuntu)
Status: Fix Committed = Triaged
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Just a note that my core i7 machine sees a *ton* of pthread_mutex*()
crashes on precise that I cannot reproduce on oneiric. Because I'm
seeing this in Rhythmbox, cinnamon, colord, etc., I don't think this is
a pulseaudio-specific issue.
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I checked out the latest packaging branch for pulseaudio using
debcheckout, built, installed, and retested. Something in there fixes
things. I'm looking forward to version 1:1.1-0ubuntu11 being released
:).
** Changed in: pulseaudio (Ubuntu)
Status: Incomplete = Fix Released
** Changed
** Summary changed:
- Pulseaudio crashes other program using sound: Assertion
'pthread_mutex_unlock(m-mutex) == 0'
+ [armel] Pulseaudio crashes other program using sound: Assertion
'pthread_mutex_unlock(m-mutex) == 0'
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It looks like a bug in the lower layers to me, but I'm okay with
disabling priority inheritance for armel as a workaround. But please
confirm that this actually resolves your problem.
Lowering severity as it does not seem to affect many machines? A
transformer and something running kernel
