. Thread 4 (process 9502): #0 0xffffe410 in __kernel_vsyscall () #1 0xb7f36dd2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7b421b3 in ?? () from /usr/lib/libgthread-2.0.so.0 #3 0xb1401200 in ?? () #4 0x0907e848 in ?? () #5 0xb4be1318 in ?? () #6 0x0000251e in ?? () #7 0xb56ca2a4 in ?? () from /usr/lib/libgstreamer-0.10.so.0 #8 0x0965db90 in ?? () #9 0xb4be1358 in ?? () #10 0xb7acf9ef in g_queue_peek_tail_link () from /usr/lib/libglib-2.0.so.0 #11 0xb7a99e91 in ?? () from /usr/lib/libglib-2.0.so.0 #12 0xb1401200 in ?? () #13 0x0907e848 in ?? () #14 0xb4be1394 in ?? () #15 0xb7a99f1f in g_async_queue_timed_pop_unlocked () from /usr/lib/libglib-2.0.so.0 #16 0xb7ae9672 in ?? () from /usr/lib/libglib-2.0.so.0 #17 0x08fcc4d8 in ?? () #18 0xb4be1394 in ?? () #19 0xb4be13a8 in ?? () #20 0xb7b36a20 in ?? () from /usr/lib/libglib-2.0.so.0 #21 0xb7ae96e0 in ?? () from /usr/lib/libglib-2.0.so.0 #22 0xb7b36a10 in ?? () from /usr/lib/libglib-2.0.so.0 #23 0x00000000 in ?? () . Thread 3 (process 9503): #0 0xffffe410 in __kernel_vsyscall () #1 0xb7f36dd2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7b421b3 in ?? () from /usr/lib/libgthread-2.0.so.0 #3 0xb1401200 in ?? () #4 0x0907e848 in ?? () #5 0xb3586318 in ?? () #6 0x0000251f in ?? () #7 0xb56ca2a4 in ?? () from /usr/lib/libgstreamer-0.10.so.0 #8 0xb14fe8b8 in ?? () #9 0xb3586358 in ?? () #10 0xb7acf9ef in g_queue_peek_tail_link () from /usr/lib/libglib-2.0.so.0 #11 0xb7a99e91 in ?? () from /usr/lib/libglib-2.0.so.0 #12 0xb1401200 in ?? () #13 0x0907e848 in ?? () #14 0xb3586394 in ?? () #15 0xb7a99f1f in g_async_queue_timed_pop_unlocked () from /usr/lib/libglib-2.0.so.0 #16 0xb7ae9672 in ?? () from /usr/lib/libglib-2.0.so.0 #17 0x08fcc4d8 in ?? () #18 0xb3586394 in ?? () #19 0xb35863a8 in ?? () #20 0xb7b36a20 in ?? () from /usr/lib/libglib-2.0.so.0 #21 0xb7ae96e0 in ?? () from /usr/lib/libglib-2.0.so.0 #22 0xb7b36a10 in ?? () from /usr/lib/libglib-2.0.so.0 #23 0x00000000 in ?? () . Thread 2 (process 10451): #0 0xffffe410 in __kernel_vsyscall () #1 0xb7e7c697 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb37a1e72 in ?? () #3 0x093f2ca0 in ?? () #4 0x00000001 in ?? () #5 0xffffffff in ?? () #6 0x09277e8c in ?? () #7 0x094147c0 in ?? () #8 0xb7f35bb7 in __pthread_mutex_unlock_usercnt () from /lib/tls/i686/cmov/libpthread.so.0 #9 0xb3797e09 in ?? () #10 0x093f2ca0 in ?? () #11 0x00000001 in ?? () #12 0xffffffff in ?? () #13 0x09277ea8 in ?? () #14 0x09415757 in ?? () #15 0x478191a6 in ?? () #16 0xff0a0000 in ?? () #17 0xb37c4768 in ?? () #18 0xb37c4768 in ?? () #19 0x00000000 in ?? () . Thread 1 (process 9205): #0 0xb7594d33 in IA__gtk_tree_view_remove_column (tree_view=0x8c73b40, column=0x9658060) at /build/buildd/gtk+2.0-2.12.3/gtk/gtktreeview.c:11222 __t = __PRETTY_FUNCTION__ = "IA__gtk_tree_view_remove_column" #1 0xb759b401 in gtk_tree_view_destroy (object=0x8c73b40) at /build/buildd/gtk+2.0-2.12.3/gtk/gtktreeview.c:1568 column = (GtkTreeViewColumn *) 0x8306320 tree_view = list = (GList *) 0x9658040 #2 0xb7b5d40f in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0 #3 0xb7b4e019 in ?? () from /usr/lib/libgobject-2.0.so.0 #4 0x0874b330 in ?? () #5 0x00000000 in ?? ()