.
Thread 2 (process 9824):
#0  0xb7f65410 in __kernel_vsyscall ()
#1  0xb7e8bc07 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0xb4da0852 in ?? () from /usr/lib/libpulse.so.0
#3  0x0914e558 in ?? ()
#4  0x00000001 in ?? ()
#5  0xffffffff in ?? ()
#6  0xb4d93c31 in pa_mainloop_prepare () from /usr/lib/libpulse.so.0
#7  0xb4d932a9 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#8  0xb4d94993 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#9  0xb4d94a64 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#10 0xb4da0753 in ?? () from /usr/lib/libpulse.so.0
#11 0x09893638 in ?? ()
#12 0x00000000 in ?? ()
.
Thread 1 (process 8989):
#0  0xb769cb83 in gtk_tree_view_remove_column ()
   from /usr/lib/libgtk-x11-2.0.so.0
#1  0xb76a3361 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#2  0x08d21b60 in ?? ()
#3  0x0977c330 in ?? ()
#4  0xb76a3330 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#5  0xb7bd2680 in ?? () from /usr/lib/libgobject-2.0.so.0
#6  0xb76a3320 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#7  0x08d21b60 in ?? ()
#8  0xbf8f7988 in ?? ()
#9  0xb7baea4f in g_cclosure_marshal_VOID__VOID ()
   from /usr/lib/libgobject-2.0.so.0
Backtrace stopped: frame did not save the PC