Assertion '*_head == _item' failed at pulse.c:634, function stream_drain_cb()

[Guillaume Desmottes]

Empathy crashed when receiving an audio call because of this:

Assertion '*_head == _item' failed at pulse.c:634, function stream_drain_cb(). Aborting.

(gdb) bt
#0 0x00007fffeec844b5 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007fffeec87f50 in *__GI_abort () at abort.c:92
#2 0x00007fffde768196 in stream_drain_cb (s=0x28f2070, success=<value optimized out>, userdata=0x11e4960) at pulse.c:625
#3 0x00007fffde5491f5 in pa_stream_simple_ack_callback (pd=<value optimized out>, command=<value optimized out>, tag=<value optimized out>,
    t=<value optimized out>, userdata=0x27ae0b0) at pulse/stream.c:1995
#4 0x00007fffde2ff683 in run_action (pd=0x101e6a0, r=0x2747be0, command=2, ts=0x7fffd4004920) at pulsecore/pdispatch.c:274
#5 0x00007fffde2ffb79 in pa_pdispatch_run (pd=0x101e6a0, packet=<value optimized out>, creds=0x22b4710, userdata=0x26cb330)
    at pulsecore/pdispatch.c:326
#6 0x00007fffde53591d in pstream_packet_callback (p=<value optimized out>, packet=0x7fffd403e9d0, creds=0x22b4710, userdata=0x26cb330)
    at pulse/context.c:357
#7 0x00007fffde304224 in do_read (p=0x22b45c0) at pulsecore/pstream.c:816
#8 do_something (p=0x22b45c0) at pulsecore/pstream.c:184
#9 0x00007fffde541a93 in dispatch_pollfds (m=0x26cca00) at pulse/mainloop.c:688
#10 pa_mainloop_dispatch (m=0x26cca00) at pulse/mainloop.c:933
#11 0x00007fffde541ec8 in pa_mainloop_iterate (m=0x26cca00, block=<value optimized out>, retval=0x0) at pulse/mainloop.c:964
#12 0x00007fffde541f70 in pa_mainloop_run (m=0x26cca00, retval=0x0) at pulse/mainloop.c:979
#13 0x00007fffde55012b in thread (userdata=0x108df00) at pulse/thread-mainloop.c:94
#14 0x00007fffde311050 in internal_thread_func (userdata=0xd6ce20) at pulsecore/thread-posix.c:72
#15 0x00007ffff54f4a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#16 0x00007fffeed307bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#17 0x0000000000000000 in ?? ()

ProblemType: Bug
Architecture: amd64
Date: Fri Nov 6 16:46:18 2009
DistroRelease: Ubuntu 9.10
Package: libcanberra-pulse 0.15-0ubuntu7
ProcEnviron:
 PATH=(custom, user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: libcanberra
Uname: Linux 2.6.31-14-generic x86_64