. Thread 4 (Thread 1365): #0 0x00007f6ae26110c3 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f6ae2921d68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f6ae2922592 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f6ae32e76f6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #4 0x00007f6ae2947256 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f6ae377ad8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f6ae261e20d in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #7 0x0000000000000000 in ?? () No symbol table info available. . Thread 3 (Thread 1364): #0 0x00007f6ae377ff2b in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00007f6ae2bce4d5 in ?? () from /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 No symbol table info available. #2 0x00007f6ae28f6d7f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f6ae29497b1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #4 0x00007f6ae2947256 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f6ae377ad8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f6ae261e20d in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #7 0x0000000000000000 in ?? () No symbol table info available. . Thread 2 (Thread 1361): #0 0x00007f6ae37831bd in recvmsg () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00007f6ad37422a1 in pa_iochannel_read_with_creds () from /usr/lib/libpulsecommon-0.9.23.so No symbol table info available. #2 0x00007f6ad3753064 in ?? () from /usr/lib/libpulsecommon-0.9.23.so No symbol table info available. #3 0x00007f6ad0c03b33 in ?? () from /usr/lib/libpulse-mainloop-glib.so.0 No symbol table info available. #4 0x00007f6ae292185d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f6ae2922058 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #6 0x00007f6ae2922592 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #7 0x00007f6ae3af6dcd in gtk_main () from /usr/lib/libgtk-3.so.0 No symbol table info available. #8 0x00000000004036a2 in main () No symbol table info available. . Thread 1 (Thread 1366): #0 0x00007f6ae256bc45 in raise () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f6ae256f9f6 in abort () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #2 0x00007f6ae2564705 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #3 0x00007f6ae1dacdae in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #4 0x00007f6ae1dadaec in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #5 0x00007f6ae1dfe893 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #6 0x00007f6ae1dfe95e in XkbGetUpdatedMap () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #7 0x00007f6ae1dfea3d in XkbGetMap () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #8 0x00007f6ad23605ba in ?? () from /usr/lib/gnome-settings-daemon-3.0/liba11y-keyboard.so No symbol table info available. #9 0x00007f6ad23606e0 in ?? () from /usr/lib/gnome-settings-daemon-3.0/liba11y-keyboard.so No symbol table info available. #10 0x00007f6ad2360c7c in ?? () from /usr/lib/gnome-settings-daemon-3.0/liba11y-keyboard.so No symbol table info available. #11 0x00007f6ae2fe3d54 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #12 0x00007f6ae2ff5bbb in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #13 0x00007f6ae2fff1c7 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #14 0x00007f6ae2fff392 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #15 0x00007f6ae32c4f21 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #16 0x00007f6ae33041b0 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #17 0x00007f6ae2fe3d54 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #18 0x00007f6ae2ff59f4 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #19 0x00007f6ae2fff056 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #20 0x00007f6ae2fff392 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #21 0x00007f6ae32c5c07 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #22 0x00007f6ae32c2a6b in g_settings_backend_changed_tree () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #23 0x00007f6ada35172c in ?? () from /usr/lib/gio/modules/libdconfsettings.so No symbol table info available. #24 0x00007f6ae3291661 in g_simple_async_result_complete () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #25 0x00007f6ae32d9354 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #26 0x00007f6ae3291661 in g_simple_async_result_complete () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #27 0x00007f6ae329179c in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #28 0x00007f6ae292185d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #29 0x00007f6ae2922058 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #30 0x00007f6ae2922592 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #31 0x00007f6ada350a0b in ?? () from /usr/lib/gio/modules/libdconfsettings.so No symbol table info available. #32 0x00007f6ae2947256 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #33 0x00007f6ae377ad8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #34 0x00007f6ae261e20d in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #35 0x0000000000000000 in ?? () No symbol table info available.