. Thread 4 (process 7088): #0 0xb7ef5430 in __kernel_vsyscall () #1 0xb6fb7de7 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb71ddc32 in ?? () from /usr/lib/libglib-2.0.so.0 #3 0xb71de2c2 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #4 0xb7c278b0 in ?? () from /usr/lib/libORBit-2.so.0 #5 0xb720505f in ?? () from /usr/lib/libglib-2.0.so.0 #6 0xb70454ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #7 0xb6fc264e in clone () from /lib/tls/i686/cmov/libc.so.6 . Thread 3 (process 6913): #0 0xb7ef5430 in __kernel_vsyscall () #1 0xb7049065 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0x080b4921 in ?? () #3 0xb720505f in ?? () from /usr/lib/libglib-2.0.so.0 #4 0xb70454ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #5 0xb6fc264e in clone () from /lib/tls/i686/cmov/libc.so.6 . Thread 2 (process 7566): #0 0xb7ef5430 in __kernel_vsyscall () #1 0xb7049065 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0x080b4921 in ?? () #3 0xb720505f in ?? () from /usr/lib/libglib-2.0.so.0 #4 0xb70454ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #5 0xb6fc264e in clone () from /lib/tls/i686/cmov/libc.so.6 . Thread 1 (process 6838): #0 0x080c82e1 in brasero_mkisofs_base_write_to_files () #1 0x080d28dd in brasero_track_get_data_paths () #2 0xb55ca6c8 in ?? () from /usr/lib/brasero/plugins/libbrasero-genisoimage.so #3 0xb55caeb1 in ?? () from /usr/lib/brasero/plugins/libbrasero-genisoimage.so #4 0x080a1270 in ?? () #5 0x0809f7a5 in ?? () #6 0x080b2fe9 in ?? () #7 0x080b3964 in ?? () #8 0x080994dd in ?? () #9 0x0809a900 in ?? () #10 0x0809b396 in brasero_burn_record () #11 0x0807d0b1 in brasero_burn_dialog_run () #12 0x08090885 in brasero_project_burn () #13 0xb72843d4 in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0 #14 0xb7276c4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #15 0xb728d095 in ?? () from /usr/lib/libgobject-2.0.so.0 #16 0xb728e7ac in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #17 0xb728ec26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #18 0xb7850eea in gtk_button_clicked () from /usr/lib/libgtk-x11-2.0.so.0 #19 0xb7851f98 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #20 0xb72843d4 in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0 #21 0xb72753c9 in ?? () from /usr/lib/libgobject-2.0.so.0 #22 0xb7276c4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #23 0xb728c8ee in ?? () from /usr/lib/libgobject-2.0.so.0 #24 0xb728e7ac in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #25 0xb728ec26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #26 0xb7850f8a in gtk_button_released () from /usr/lib/libgtk-x11-2.0.so.0 #27 0xb7850fc3 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #28 0xb7904f26 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #29 0xb72753c9 in ?? () from /usr/lib/libgobject-2.0.so.0 #30 0xb7276c4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #31 0xb728cd3d in ?? () from /usr/lib/libgobject-2.0.so.0 #32 0xb728e62b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #33 0xb728ec26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #34 0xb7a1a0fe in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #35 0xb78fda3c in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0 #36 0xb78fede7 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0 #37 0xb779551a in ?? () from /usr/lib/libgdk-x11-2.0.so.0 #38 0xb71da6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #39 0xb71ddda3 in ?? () from /usr/lib/libglib-2.0.so.0 #40 0xb71de2c2 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #41 0xb78ff299 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #42 0x0806e5ea in main ()