.
Thread 3 (process 8225):
#0  0xb80e6430 in __kernel_vsyscall ()
#1  0xb76b7d43 in ?? () from /lib/tls/i686/cmov/libc.so.6
#2  0xb763cc5d in ?? () from /lib/tls/i686/cmov/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
.
Thread 2 (process 8227):
#0  0xb80e6430 in __kernel_vsyscall ()
#1  0xb7730075 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb72a47ec in ?? () from /usr/lib/libpulse.so.0
#3  0xb7283c0f in pa_threaded_mainloop_wait () from /usr/lib/libpulse.so.0
#4  0xb73e6f14 in pulse_wait_operation ()
   from /usr/lib/alsa-lib/libasound_module_pcm_pulse.so
#5  0xb73e5f19 in ?? () from /usr/lib/alsa-lib/libasound_module_pcm_pulse.so
#6  0xb7344149 in ?? () from /usr/lib/libasound.so.2
#7  0xb72f9d21 in snd_pcm_drop () from /usr/lib/libasound.so.2
#8  0xb72fffd9 in snd_pcm_close () from /usr/lib/libasound.so.2
#9  0xb73ecb55 in ?? () from /usr/lib/libcanberra/libcanberra-alsa.so
#10 0xb73ed136 in ?? () from /usr/lib/libcanberra/libcanberra-alsa.so
#11 0xb772c50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0xb76a97ee in clone () from /lib/tls/i686/cmov/libc.so.6
.
Thread 1 (process 8221):
#0  0xb7637c63 in ?? () from /lib/tls/i686/cmov/libc.so.6
#1  0xb7639077 in ?? () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7639456 in free () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7286621 in pa_xfree () from /usr/lib/libpulse.so.0
#4  0xb72a3adb in ?? () from /usr/lib/libpulse.so.0
#5  0xb7293eee in ?? () from /usr/lib/libpulse.so.0
#6  0xb7269cc8 in ?? () from /usr/lib/libpulse.so.0
#7  0xb72a6650 in ?? () from /usr/lib/libpulse.so.0
#8  0xb80da153 in ?? () from /lib/ld-linux.so.2
#9  0xb75f6d69 in exit () from /lib/tls/i686/cmov/libc.so.6
#10 0xb75de68d in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#11 0x08048b21 in ?? ()