Program received signal SIGABRT, Aborted. 0x00b4d422 in __kernel_vsyscall () (gdb) bt #0 0x00b4d422 in __kernel_vsyscall () #1 0x002a74d1 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #2 0x002aa932 in *__GI_abort () at abort.c:92 #3 0x002a0648 in *__GI___assert_fail (assertion=0x1d74116 "!plugin->mExpectingStream", file=0x1d73f1e "totemPlugin.cpp", line=1295, function=0x1d74e60 "static void totemPlugin::ViewerOpenStreamCallback(DBusGProxy*, DBusGProxyCall*, void*)") at assert.c:81 #4 0x01d70142 in totemPlugin::ViewerOpenStreamCallback(_DBusGProxy*, _DBusGProxyCall*, void*) () from /usr/lib/mozilla/plugins/libtotem-narrowspace-plugin.so #5 0x00ef4c3f in ?? () from /usr/lib/libdbus-glib-1.so.2 #6 0x00995791 in ?? () from /lib/libdbus-1.so.3 #7 0x009853f6 in ?? () from /lib/libdbus-1.so.3 #8 0x009879b2 in dbus_connection_dispatch () from /lib/libdbus-1.so.3 #9 0x00ef075d in ?? () from /usr/lib/libdbus-glib-1.so.2 #10 0x00cb7e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0 #11 0x00cbb730 in ?? () from /lib/libglib-2.0.so.0 #12 0x00cbb863 in g_main_context_iteration () from /lib/libglib-2.0.so.0 #13 0x018d7e30 in nsAppShell::ProcessNextNativeEvent (this=0xb7b26380, mayWait=1) at nsAppShell.cpp:147 #14 0x018ec45c in nsBaseAppShell::DoProcessNextNativeEvent (this=0xb7b26380, mayWait=1) at nsBaseAppShell.cpp:151 #15 0x018ec600 in nsBaseAppShell::OnProcessNextEvent (this=0xb7b26380, thr=0xb7cdf600, mayWait=1, recursionDepth=0) at nsBaseAppShell.cpp:296 #16 0x0199b462 in nsThread::ProcessNextEvent (this=0xb7cdf600, mayWait=1, result=0xbfffad5c) at nsThread.cpp:508 #17 0x0196bc07 in NS_ProcessNextEvent_P (thread=0x0, mayWait=1) at nsThreadUtils.cpp:247 #18 0x018ec70e in nsBaseAppShell::Run (this=0xb7b26380) at nsBaseAppShell.cpp:170 #19 0x017b4fc4 in nsAppStartup::Run (this=0xb780b820) at nsAppStartup.cpp:193 #20 0x0116a8cd in XRE_main (argc=1, argv=0xbffff454, aAppData=0xb7c1d800) at nsAppRunner.cpp:3347 #21 0x0804a00f in ?? () #22 0x00293b56 in __libc_start_main (main=0x8049924, argc=1, ubp_av=0xbffff454, init=0x8058da0, fini=0x8058d90, rtld_fini=0x5b3d20 <_dl_fini>, stack_end=0xbffff44c) at libc-start.c:220 #23 0x08049861 in ?? () (gdb) exit Undefined command: "exit". Try "help". (gdb) quit A debugging session is active. Inferior 1 [process 6942] will be killed. Quit anyway? (y or n) y (totem-plugin-viewer:6974): GStreamer-CRITICAL **: Trying to dispose element autovideosink0, but it is in READY instead of the NULL state. You need to explicitly set elements to the NULL state before dropping the final reference, to allow them to clean up. This problem may also be caused by a refcounting bug in the application or some element.