Comment 8 for bug 290914

Here is a backtrace produced with the following sequence:

1. Boot an Intrepid CD in KVM with no -sound option
2. Start a live session
3. Confirm that the volume icon on the panel has the red "X"
4. Start pidgin
5. Options->Preferences->Sound
6. Select "Message received" (or something else with a default sound)
7. Click "preview"

pidgin then stops responding.

Thread 1 (Thread 0xb70ad700 (LWP 6527)):
#0 0xb7fce422 in __kernel_vsyscall ()
#1 0xb76cf075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2 0xb480b7ec in ?? () from /usr/lib/libpulse.so.0
#3 0xb47eac0f in pa_threaded_mainloop_wait () from /usr/lib/libpulse.so.0
#4 0xb482f989 in ?? () from /usr/lib/gstreamer-0.10/libgstpulse.so
#5 0xb482fa4e in ?? () from /usr/lib/gstreamer-0.10/libgstpulse.so
#6 0xb482fad2 in ?? () from /usr/lib/gstreamer-0.10/libgstpulse.so
#7 0xb51100a9 in ?? () from /usr/lib/libgstaudio-0.10.so.0
#8 0xb511f7c8 in gst_ring_buffer_close_device () from /usr/lib/libgstaudio-0.10.so.0