.
Thread 3 (process 6249):
#0  0xb80ea430 in __kernel_vsyscall ()
#1  0xb7730c8c in pthread_mutex_lock ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7271bf1 in ?? () from /usr/lib/libpulse.so.0
#3  0xb725153c in ?? () from /usr/lib/libpulse.so.0
#4  0xb7243509 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#5  0xb7244cd3 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#6  0xb7244da4 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#7  0xb72512e3 in ?? () from /usr/lib/libpulse.so.0
#8  0xb72728e2 in ?? () from /usr/lib/libpulse.so.0
#9  0xb772f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#10 0xb76ac7ee in clone () from /lib/tls/i686/cmov/libc.so.6
.
Thread 2 (process 6254):
#0  0xb80ea430 in __kernel_vsyscall ()
#1  0xb76a90c9 in mprotect () from /lib/tls/i686/cmov/libc.so.6
#2  0xb763a550 in ?? () from /lib/tls/i686/cmov/libc.so.6
#3  0xb763a799 in ?? () from /lib/tls/i686/cmov/libc.so.6
#4  0xb763e84f in malloc () from /lib/tls/i686/cmov/libc.so.6
#5  0xb7253888 in pa_xmalloc () from /usr/lib/libpulse.so.0
#6  0xb7264a48 in ?? () from /usr/lib/libpulse.so.0
#7  0xb72691a4 in ?? () from /usr/lib/libpulse.so.0
#8  0xb724b635 in pa_stream_update_timing_info () from /usr/lib/libpulse.so.0
#9  0xb724b8c6 in ?? () from /usr/lib/libpulse.so.0
#10 0xb724bef3 in pa_stream_cork () from /usr/lib/libpulse.so.0
#11 0xb73d8ed9 in ?? () from /usr/lib/alsa-lib/libasound_module_pcm_pulse.so
#12 0xb7311149 in ?? () from /usr/lib/libasound.so.2
#13 0xb72c6d21 in snd_pcm_drop () from /usr/lib/libasound.so.2
#14 0xb72ccfd9 in snd_pcm_close () from /usr/lib/libasound.so.2
#15 0xb73dfb55 in ?? () from /usr/lib/libcanberra/libcanberra-alsa.so
#16 0xb73e0136 in ?? () from /usr/lib/libcanberra/libcanberra-alsa.so
#17 0xb772f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#18 0xb76ac7ee in clone () from /lib/tls/i686/cmov/libc.so.6
.
Thread 1 (process 6245):
#0  0xb763ac63 in ?? () from /lib/tls/i686/cmov/libc.so.6
#1  0xb763c077 in ?? () from /lib/tls/i686/cmov/libc.so.6
#2  0xb763c456 in free () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7253621 in pa_xfree () from /usr/lib/libpulse.so.0
#4  0xb7270ac5 in ?? () from /usr/lib/libpulse.so.0
#5  0xb7260eee in ?? () from /usr/lib/libpulse.so.0
#6  0xb7236cc8 in ?? () from /usr/lib/libpulse.so.0
#7  0xb7273650 in ?? () from /usr/lib/libpulse.so.0
#8  0xb80de153 in ?? () from /lib/ld-linux.so.2
#9  0xb75f9d69 in exit () from /lib/tls/i686/cmov/libc.so.6
#10 0xb75e168d in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#11 0x08048b21 in ?? ()