. Thread 3 (process 4487): #0 0x00007f7abb36a22c in writev () from /lib/libc.so.6 #1 0x00007f7ab79a0298 in ?? () from /usr/lib/libxcb.so.1 #2 0x00007f7ab79a07a9 in ?? () from /usr/lib/libxcb.so.1 #3 0x00007f7ab79a0a55 in xcb_writev () from /usr/lib/libxcb.so.1 #4 0x00007f7abc1e5dde in _XSend () from /usr/lib/libX11.so.6 #5 0x00007f7abc1e5f21 in _XReply () from /usr/lib/libX11.so.6 #6 0x00007f7abc1c3246 in XGetWindowProperty () from /usr/lib/libX11.so.6 #7 0x00007f7abdd2beae in gdk_property_get () from /usr/lib/libgdk-x11-2.0.so.0 #8 0x000000000046b66d in ?? () #9 0x000000000046ba45 in ?? () #10 0x00007f7abcf1227d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #11 0x00007f7abcf27dc8 in ?? () from /usr/lib/libgobject-2.0.so.0 #12 0x00007f7abcf29422 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #13 0x00007f7abcf29943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #14 0x00007f7abe1be386 in gtk_widget_realize () from /usr/lib/libgtk-x11-2.0.so.0 #15 0x00007f7abe1beba8 in gtk_widget_map () from /usr/lib/libgtk-x11-2.0.so.0 #16 0x00007f7abdffaa3b in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #17 0x00007f7abe02bcd9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #18 0x00007f7abcf121cf in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #19 0x00007f7abcf276fb in ?? () from /usr/lib/libgobject-2.0.so.0 #20 0x00007f7abcf29422 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #21 0x00007f7abcf29943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #22 0x00007f7abe1beb3c in gtk_widget_map () from /usr/lib/libgtk-x11-2.0.so.0 #23 0x00007f7abdffaa3b in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #24 0x00007f7abe02bcd9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #25 0x00007f7abcf121cf in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #26 0x00007f7abcf276fb in ?? () from /usr/lib/libgobject-2.0.so.0 #27 0x00007f7abcf29422 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #28 0x00007f7abcf29943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #29 0x00007f7abe1beb3c in gtk_widget_map () from /usr/lib/libgtk-x11-2.0.so.0 #30 0x00007f7abdffaa3b in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #31 0x00007f7abe02bcd9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #32 0x00007f7abcf121cf in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #33 0x00007f7abcf276fb in ?? () from /usr/lib/libgobject-2.0.so.0 #34 0x00007f7abcf29422 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #35 0x00007f7abcf29943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #36 0x00007f7abe1beb3c in gtk_widget_map () from /usr/lib/libgtk-x11-2.0.so.0 #37 0x00007f7abe12bad8 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #38 0x00007f7abe02bcd9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #39 0x00007f7abcf121cf in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #40 0x00007f7abcf276fb in ?? () from /usr/lib/libgobject-2.0.so.0 #41 0x00007f7abcf29422 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #42 0x00007f7abcf29943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #43 0x00007f7abe1beb3c in gtk_widget_map () from /usr/lib/libgtk-x11-2.0.so.0 #44 0x00007f7abe1ce93d in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #45 0x0000000000439041 in ?? () #46 0x00007f7abcf1227d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #47 0x00007f7abcf276fb in ?? () from /usr/lib/libgobject-2.0.so.0 #48 0x00007f7abcf29422 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #49 0x00007f7abcf29943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #50 0x00007f7abe1beb3c in gtk_widget_map () from /usr/lib/libgtk-x11-2.0.so.0 #51 0x00007f7abe1cea1e in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #52 0x0000000000468ab9 in ?? () #53 0x000000000045cee1 in ?? () #54 0x00007f7abcf1227d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 #55 0x00007f7abcf276fb in ?? () from /usr/lib/libgobject-2.0.so.0 #56 0x00007f7abcf29422 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #57 0x00007f7abcf29943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 #58 0x00007f7abe1bf2bc in gtk_widget_show () from /usr/lib/libgtk-x11-2.0.so.0 #59 0x0000000000466cb5 in ?? () #60 0x00000000004713c2 in ?? () #61 0x0000000000540745 in ?? () #62 0x00000000004b2137 in ?? () #63 0x00007f7abc83a0ca in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #64 0x00007f7abc83d7a0 in ?? () from /usr/lib/libglib-2.0.so.0 #65 0x00007f7abc83dc6d in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #66 0x00007f7abe0a79f7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #67 0x0000000000442817 in ?? () #68 0x00007f7abb2aa5a6 in __libc_start_main () from /lib/libc.so.6 #69 0x000000000042f539 in ?? () #70 0x00007fffc7c2d538 in ?? () #71 0x000000000000001c in ?? () #72 0x0000000000000001 in ?? () #73 0x00007fffc7c2db60 in ?? () #74 0x0000000000000000 in ?? () . Thread 2 (process 4489): #0 0x00007f7abb60956d in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007f7abedb0615 in ?? () from /usr/lib/libgthread-2.0.so.0 #2 0x00007f7abc81667b in ?? () from /usr/lib/libglib-2.0.so.0 #3 0x00007f7abc864ee9 in ?? () from /usr/lib/libglib-2.0.so.0 #4 0x00007f7abc863954 in ?? () from /usr/lib/libglib-2.0.so.0 #5 0x00007f7abb6053ba in start_thread () from /lib/libpthread.so.0 #6 0x00007f7abb371fcd in clone () from /lib/libc.so.6 #7 0x0000000000000000 in ?? () . Thread 1 (process 4495): #0 0x00007f7ab226d641 in brasero_medium_init_real (object=0x105ce60, handle=0x101f7d0) at brasero-medium.c:2680 i = name = result = priv = (BraseroMediumPrivate *) 0x105ce80 code = BRASERO_SCSI_ERR_UNKNOWN buffer = "ð~3«\237ÿ\235\\ü²£\024hcéè\016²ôÿg\233O|à<èzzÀ\020ÑëàúôÞä\004R£çìÓ\232\037Á\004«,eØ #1 0x00007f7ab226da63 in brasero_medium_probe_thread (self=0x105ce60) at brasero-medium.c:2991 counter = 16414512 path = code = BRASERO_SCSI_ERR_UNKNOWN priv = handle = #2 0x00007f7abc863954 in ?? () from /usr/lib/libglib-2.0.so.0 #3 0x00007f7abb6053ba in start_thread () from /lib/libpthread.so.0 #4 0x00007f7abb371fcd in clone () from /lib/libc.so.6 #5 0x0000000000000000 in ?? ()