the gdb output follows: Thread 10 (Thread -1257329760 (LWP 17026)): #0 0xffffe410 in __kernel_vsyscall () #1 0xb7c13a8c in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7194113 in g_cond_timed_wait_posix_impl (cond=0x8682c80, entered_mutex=0x0, abs_time=0x11) at gthread-posix.c:231 #3 0xb6ff4b41 in g_async_queue_pop_intern_unlocked (queue=0x823f488, try=, end_time=0xb50ea430) at gasyncqueue.c:341 #4 0xb6ff4c76 in IA__g_async_queue_timed_pop (queue=0x823f488, end_time=0xb50ea430) at gasyncqueue.c:467 #5 0x080d99e8 in action_thread_main (db=0x827b050) at rhythmdb.c:1795 #6 0xb702f41f in g_thread_create_proxy (data=0x86b5928) at gthread.c:553 #7 0xb7c10504 in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #8 0xb6f4150e in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 1 (Thread -1228133616 (LWP 17011)): #0 0xffffe410 in __kernel_vsyscall () #1 0xb7c15fde in __lll_mutex_lock_wait () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7c12673 in _L_mutex_lock_49 () from /lib/tls/i686/cmov/libpthread.so.0 #3 0xb7c12cd9 in pthread_mutex_unlock () from /lib/tls/i686/cmov/libpthread.so.0 ---Type to continue, or q to quit--- #4 0xb759c25c in gdk_threads_leave () from /usr/lib/libgdk-x11-2.0.so.0 #5 0xb51d81a9 in fs_module_init () from /usr/lib/gtk-2.0/2.10.0/filesystems/libgnome-vfs.so #6 0xb51d82b4 in fs_module_init () from /usr/lib/gtk-2.0/2.10.0/filesystems/libgnome-vfs.so #7 0xb71aaaeb in IA__g_object_unref (_object=0x8662180) at gobject.c:1757 #8 0xb76fabb4 in _gtk_file_system_model_remove_editable () from /usr/lib/libgtk-x11-2.0.so.0 #9 0xb71aab8c in IA__g_object_unref (_object=0x869fb50) at gobject.c:1785 #10 0xb7826cd0 in gtk_tree_model_filter_convert_child_iter_to_iter () from /usr/lib/libgtk-x11-2.0.so.0 #11 0xb7826eaf in gtk_tree_model_filter_convert_child_iter_to_iter () from /usr/lib/libgtk-x11-2.0.so.0 #12 0xb71aab8c in IA__g_object_unref (_object=0x86bd2d8) at gobject.c:1785 #13 0xb76e0be9 in _gtk_file_chooser_default_new () from /usr/lib/libgtk-x11-2.0.so.0 #14 0xb71aab8c in IA__g_object_unref (_object=0x82332e8) at gobject.c:1785 #15 0xb71aaed8 in IA__g_object_run_dispose (object=0x82332e8) at gobject.c:571 #16 0xb7768cfe in gtk_object_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #17 0xb7863b15 in gtk_widget_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #18 0xb7678750 in gtk_box_pack_start_defaults () from /usr/lib/libgtk-x11-2.0.so.0 #19 0xb76b3a0b in gtk_container_foreach () from /usr/lib/libgtk-x11-2.0.so.0 ---Type to continue, or q to quit--- #20 0xb76b4350 in _gtk_container_dequeue_resize_handler () from /usr/lib/libgtk-x11-2.0.so.0 #21 0xb71b5bd9 in IA__g_cclosure_marshal_VOID__VOID (closure=0x81f6c40, return_value=0x0, n_param_values=1, param_values=0xbfda992c, invocation_hint=0xbfda983c, marshal_data=0xb76b4310) at gmarshal.c:77 #22 0xb71a7059 in g_type_class_meta_marshal (closure=0x81f6c40, return_value=0x0, n_param_values=1, param_values=0xbfda992c, invocation_hint=0xbfda983c, marshal_data=0x4c) at gclosure.c:567 #23 0xb71a891d in IA__g_closure_invoke (closure=0x81f6c40, return_value=0x0, n_param_values=1, param_values=0xbfda992c, invocation_hint=0xbfda983c) at gclosure.c:490 #24 0xb71b93ff in signal_emit_unlocked_R (node=0x81f6c88, detail=0, instance=0x86c12d0, emission_return=0x0, instance_and_params=0xbfda992c) at gsignal.c:2554 #25 0xb71ba167 in IA__g_signal_emit_valist (instance=0x86c12d0, signal_id=18, detail=0, var_args=0xbfda9b6c "�~\225��~\225��\022l\b\230\233ڿ19\206��\022l\b�\022l\b") at gsignal.c:2197 #26 0xb71ba329 in IA__g_signal_emit (instance=0x86c12d0, signal_id=18, detail=0) at gsignal.c:2241 #27 0xb7768ff1 in gtk_object_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #28 0xb7863931 in gtk_widget_hide () from /usr/lib/libgtk-x11-2.0.so.0 #29 0xb71aaed0 in IA__g_object_run_dispose (object=0x86c12d0) at gobject.c:570 #30 0xb7768cfe in gtk_object_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #31 0xb7863b15 in gtk_widget_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #32 0xb7678750 in gtk_box_pack_start_defaults () from /usr/lib/libgtk-x11-2.0.so.0 #33 0xb76b3a0b in gtk_container_foreach () from /usr/lib/libgtk-x11-2.0.so.0 #34 0xb76b4350 in _gtk_container_dequeue_resize_handler () from /usr/lib/libgtk-x11-2.0.so.0 #35 0xb71b5bd9 in IA__g_cclosure_marshal_VOID__VOID (closure=0x81f6c40, return_value=0x0, n_param_values=1, param_values=0xbfda9ecc, invocation_hint=0xbfda9ddc, marshal_data=0xb76b4310) at gmarshal.c:77 #36 0xb71a7059 in g_type_class_meta_marshal (closure=0x81f6c40, return_value=0x0, n_param_values=1, param_values=0xbfda9ecc, invocation_hint=0xbfda9ddc, marshal_data=0x4c) at gclosure.c:567 #37 0xb71a891d in IA__g_closure_invoke (closure=0x81f6c40, return_value=0x0, n_param_values=1, param_values=0xbfda9ecc, invocation_hint=0xbfda9ddc) at gclosure.c:490 #38 0xb71b93ff in signal_emit_unlocked_R (node=0x81f6c88, detail=0, instance=0x86ac778, emission_return=0x0, instance_and_params=0xbfda9ecc) at gsignal.c:2554 #39 0xb71ba167 in IA__g_signal_emit_valist (instance=0x86ac778, signal_id=18, detail=0, var_args=0xbfdaa10c "�~\225��~\225�x�j\b8�ڿ19\206�x�j\bx�j\b��\004p\207\035�p\207\035�x�j\bX�ڿЮ\032�x�j\bP") at gsignal.c:2197 #40 0xb7154329 in IA__g_signal_emit (instance=0x86be370, signal_id=18, detail=0) at gsignal.c:2241 #41 0xb7702ff1 in gtk_object_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #42 0xb77fd931 in gtk_widget_hide () from /usr/lib/libgtk-x11-2.0.so.0 #43 0xb7144ed0 in IA__g_object_run_dispose (object=0x86be370) at gobject.c:570 #44 0xb7702cfe in gtk_object_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #45 0xb77fdb15 in gtk_widget_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #46 0xb760eb0f in gtk_button_box_set_child_size () from /usr/lib/libgtk-x11-2.0.so.0 #47 0xb764da0b in gtk_container_foreach () from /usr/lib/libgtk-x11-2.0.so.0 #48 0xb764e350 in _gtk_container_dequeue_resize_handler () from /usr/lib/libgtk-x11-2.0.so.0 #49 0xb780ccf1 in gtk_window_new () from /usr/lib/libgtk-x11-2.0.so.0 #50 0xb714fbd9 in IA__g_cclosure_marshal_VOID__VOID (closure=0x81f6c40, return_value=0x0, n_param_values=1, param_values=0xbff36e0c, invocation_hint=0xbff36d1c, marshal_data=0x86c5800) at gmarshal.c:77 #51 0xb7141059 in g_type_class_meta_marshal (closure=0x81f6c40, return_value=0x0, n_param_values=1, param_values=0xbff36e0c, invocation_hint=0xbff36d1c, marshal_data=0x4c) at gclosure.c:567 #52 0xb714283b in IA__g_closure_invoke (closure=0x81f6c40, return_value=0x0, n_param_values=1, param_values=0xbff36e0c, invocation_hint=0xbff36d1c) at gclosure.c:490 #53 0xb71533ff in signal_emit_unlocked_R (node=0x81f6c88, detail=0, instance=0x86c5800, emission_return=0x0, instance_and_params=0xbff36e0c) at gsignal.c:2554 #54 0xb7154167 in IA__g_signal_emit_valist (instance=0x86c5800, signal_id=18, detail=0, var_args=0xbff3704c "��\177��\036\217�") at gsignal.c:2197 #55 0xb7154329 in IA__g_signal_emit (instance=0x86c5800, signal_id=18, detail=0) at gsignal.c:2241 #56 0xb7702ff1 in gtk_object_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #57 0xb77fd931 in gtk_widget_hide () from /usr/lib/libgtk-x11-2.0.so.0 #58 0xb7809bf6 in _gtk_window_unset_focus_and_default () from /usr/lib/libgtk-x11-2.0.so.0 #59 0xb7144ed0 in IA__g_object_run_dispose (object=0x86c5800) at gobject.c:570 #60 0xb7702cfe in gtk_object_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #61 0xb77fdb15 in gtk_widget_destroy () from /usr/lib/libgtk-x11-2.0.so.0 #62 0x08072207 in add_to_library_response_cb (dialog=0x86c5800, response_id=-3, shell=0x8278010) at rb-shell.c:2340 #63 0xb714f929 in IA__g_cclosure_marshal_VOID__INT (closure=0xb5007fe8, return_value=0x0, n_param_values=2, param_values=0xbff3736c, invocation_hint=0xbff3727c, marshal_data=0x8072110) at gmarshal.c:216 #64 0xb714283b in IA__g_closure_invoke (closure=0xb5007fe8, return_value=0x0, n_param_values=2, param_values=0xbff3736c, invocation_hint=0xbff3727c) at gclosure.c:490 #65 0xb7152c43 in signal_emit_unlocked_R (node=0x865edc8, detail=0, instance=0x86c5800, emission_return=0x0, instance_and_params=0xbff3736c) at gsignal.c:2438 #66 0xb7154167 in IA__g_signal_emit_valist (instance=0x86c5800, signal_id=339, detail=0, var_args=0xbff375b0 "p'\027�") at gsignal.c:2197 #67 0xb7154329 in IA__g_signal_emit (instance=0x86c5800, signal_id=339, detail=0) at gsignal.c:2241 #68 0xb765f5ba in gtk_dialog_response () from /usr/lib/libgtk-x11-2.0.so.0 #69 0xb765f615 in gtk_dialog_response () from /usr/lib/libgtk-x11-2.0.so.0 #70 0xb714fbd9 in IA__g_cclosure_marshal_VOID__VOID (closure=0x86c8388, return_value=0x0, n_param_values=1, param_values=0xbff3780c, invocation_hint=0xbff3771c, marshal_data=0xb765f5f0) at gmarshal.c:77 #71 0xb714283b in IA__g_closure_invoke (closure=0x86c8388, return_value=0x0, n_param_values=1, param_values=0xbff3780c, invocation_hint=0xbff3771c) at gclosure.c:490 #72 0xb7152c43 in signal_emit_unlocked_R (node=0x821b460, detail=0, instance=0x86ccd68, emission_return=0x0, instance_and_params=0xbff3780c) at gsignal.c:2438 #73 0xb7154167 in IA__g_signal_emit_valist (instance=0x86ccd68, signal_id=108, detail=0, var_args=0xbff37a4c "�6a�p'\027�h�l\bhz��NSa�h�l\b\020Sa�\210z��\024�h�l\bxS!\b") at gsignal.c:2197 #74 0xb7154329 in IA__g_signal_emit (instance=0x86ccd68, signal_id=108, detail=0) at gsignal.c:2241 #75 0xb7613703 in gtk_button_clicked () from /usr/lib/libgtk-x11-2.0.so.0 #76 0xb761534e in gtk_button_set_alignment () from /usr/lib/libgtk-x11-2.0.so.0 #77 0xb714fbd9 in IA__g_cclosure_marshal_VOID__VOID (closure=0x821bd58, return_value=0x0, n_param_values=1, param_values=0xbff37ccc, invocation_hint=0xbff37bdc, marshal_data=0x86ccd68) at gmarshal.c:77 #78 0xb7141059 in g_type_class_meta_marshal (closure=0x821bd58, return_value=0x0, n_param_values=1, param_values=0xbff37ccc, invocation_hint=0xbff37bdc, marshal_data=0x1a4) at gclosure.c:567 #79 0xb714283b in IA__g_closure_invoke (closure=0x821bd58, return_value=0x0, n_param_values=1, param_values=0xbff37ccc, invocation_hint=0xbff37bdc) at gclosure.c:490 #80 0xb71530da in signal_emit_unlocked_R (node=0x821bd80, detail=0, instance=0x86ccd68, emission_return=0x0, instance_and_params=0xbff37ccc) at gsignal.c:2368 #81 0xb7154167 in IA__g_signal_emit_valist (instance=0x86ccd68, signal_id=107, detail=0, var_args=0xbff37f0c "J7a��\036\217��7a�(\177��7a�h�l\b�7a�H\177��)n�h�l\bX\\m\b�� \bp'\027�\214\201��0q\037\bx\177��Y\020\024�0q\037\b�\200��\002") at gsignal.c:2197 #82 0xb7154329 in IA__g_signal_emit (instance=0x86ccd68, signal_id=107, detail=0) at gsignal.c:2241 #83 0xb7613793 in gtk_button_released () from /usr/lib/libgtk-x11-2.0.so.0 #84 0xb76137f1 in gtk_button_released () from /usr/lib/libgtk-x11-2.0.so.0 #85 0xb76e29f0 in _gtk_marshal_BOOLEAN__BOXED () from /usr/lib/libgtk-x11-2.0.so.0 #86 0xb7141059 in g_type_class_meta_marshal (closure=0x86ccd68, return_value=0xbff380b0, n_param_values=2, param_values=0xb76137d0, invocation_hint=0xbff3809c, marshal_data=0xb4) at gclosure.c:567 #87 0xb714283b in IA__g_closure_invoke (closure=0x81f7130, return_value=0xbff380b0, n_param_values=2, param_values=0xbff3818c, invocation_hint=0xbff3809c) at gclosure.c:490 #88 0xb7153293 in signal_emit_unlocked_R (node=0x81f73f0, detail=0, instance=0x86ccd68, emission_return=0xbff3834c, instance_and_params=0xbff3818c) at gsignal.c:2476 #89 0xb7153f2f in IA__g_signal_emit_valist (instance=0x86ccd68, signal_id=60, detail=0, var_args=) at gsignal.c:2207 #90 0xb7154329 in IA__g_signal_emit (instance=0x86ccd68, signal_id=60, detail=0) at gsignal.c:2241 #91 0xb77f61e8 in gtk_widget_get_default_style () from /usr/lib/libgtk-x11-2.0.so.0 #92 0xb76dbde3 in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0 #93 0xb76dcfe7 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0 #94 0xb75658aa in _gdk_events_init () from /usr/lib/libgdk-x11-2.0.so.0 #95 0xb6fab872 in IA__g_main_context_dispatch (context=0x8205558) at gmain.c:2045 #96 0xb6fae84f in g_main_context_iterate (context=0x8205558, block=1, dispatch=1, self=0x81508b0) at gmain.c:2677 #97 0xb6faebf9 in IA__g_main_loop_run (loop=0x863c390) at gmain.c:2881 #98 0xb76dd464 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #99 0x0806ce74 in main (argc=1, argv=0xbff387d4) at main.c:375