Red Hat Bugzilla – Bug 1014781
pulseaudio daemon gets hung up and blocks other applications
Last modified: 2015-02-17 12:28:29 EST
Created attachment 806687 [details]
pulseaudio stack trace when hung up
+++ This bug was initially created as a clone of Bug #1014588 +++
Description of problem:
Applications wanting to emit a sound introduce multi-second latencies.
In addition trying to start the pavucontrol it just blocks forever with "Establishing connection..."
Version-Release number of selected component (if applicable):
Not on demand but eventually pulseaudio daemon will get into this state.
The only way to resolve this issue is to kill the running pulseaudio daemon (had to use -KILL as -TERM and -HUP wouldn't kill it) and another was automatically restarted fixing the problem, until it happens again, for unknown reasons.
I will attach a threaded stack trace of the pulseaudio daemon in this hung-up state.
Any chance of getting this looked at given that it's happened to me at least half-a-dozen times today?
You might have gathered by just looking at the stack traces, but I have confirmed that this issue seems to be related to the appearance and disappearance of my bluetooth headset.
That said, is there any reason this bug has not even been triaged? Maybe the above detail was the missing link needed to make progress on this bug?
Tanu Kaskinen reported on the PA discuss list about this issue:
So dbus_connection_read_write_dispatch() is blocking. We give -1 as the
timeout parameter, which means infinite timeout, but
pa_dbus_wrap_connection_free() calls dbus_connection_close() just before
calling dbus_connection_read_write_dispatch(), and I would expect that
there would never be a reason to block if the connection has been
closed. So, this looks like a D-Bus bug, but I'm not sure about that.
So I will re-assign to the dbus Component here to see if this can get worked out.
I'm seeing what I suspect is this on all the computers in the lab at school. The machines are all running Fedora 19.
I only noticed this problem about a week ago and haven't had time to comment/research until now.
I get a warning at the bottom of the gnome window saying:
A Problem has been Reported
A problem in the pulseaudio-3.0-10.fc19 package has been detected
[ Ignore Forever ]
This no obvious backtrace and no way to see what the problem is, where it's been reported or that something is being done about it.
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