. Thread 7 (Thread 0x7f7238b57700 (LWP 4926)): #0 0x00007f725eeaf9cd in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f724c187e51 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #2 0x00007f724c179401 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #3 0x00007f724c179a9e in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #4 0x00007f724c179b50 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #5 0x00007f724c187d99 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #6 0x00007f723f8c3c88 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-9.0.so No symbol table info available. #7 0x00007f725e35370a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #8 0x00007f725eebb6ad in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. . Thread 6 (Thread 0x7f723e8a5700 (LWP 2859)): #0 0x00007f725eeaf9cd in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f724c187e51 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #2 0x00007f724c179401 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #3 0x00007f724c179a9e in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #4 0x00007f724c179b50 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #5 0x00007f724c187d99 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0 No symbol table info available. #6 0x00007f723f8c3c88 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-9.0.so No symbol table info available. #7 0x00007f725e35370a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #8 0x00007f725eebb6ad in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. . Thread 5 (Thread 0x7f724cdc6700 (LWP 2722)): #0 0x00007f725eeaf9cd in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f7261d6741c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f7261d677a2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f725eb11286 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #4 0x00007f7261d8dd75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f725e35370a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f725eebb6ad in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. . Thread 4 (Thread 0x7f724d5c7700 (LWP 2721)): #0 0x00007f725eeaf9cd in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f7261d6741c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f7261d6752c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f7261d67569 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #4 0x00007f7261d8dd75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f725e35370a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f725eebb6ad in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. . Thread 3 (Thread 0x7f724eb36700 (LWP 2653)): #0 0x00007f725eeab50d in read () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f7262032d0e in ?? () from /usr/lib/x86_64-linux-gnu/libmenu-cache.so.3 No symbol table info available. #2 0x00007f7261d8dd75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f725e35370a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #4 0x00007f725eebb6ad in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. . Thread 2 (Thread 0x7f7254e74700 (LWP 2589)): #0 0x00007f725eeaf9cd in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f725df1cc62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 No symbol table info available. #2 0x00007f725df1e8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 No symbol table info available. #3 0x00007f72571c6629 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 No symbol table info available. #4 0x00007f725f8b47be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #5 0x00007f725e35370a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f725eebb6ad in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. . Thread 1 (Thread 0x7f72624e38c0 (LWP 2583)): #0 0x00007f7260388059 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 No symbol table info available. #1 0x00007f726038d516 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 No symbol table info available. #2 0x00007f725fa9558b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #3 0x00007f725fa97986 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #4 0x00007f725faeb5c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #5 0x00007f7261d67227 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #6 0x00007f7261d67480 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #7 0x00007f7261d6752c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #8 0x00007f725faeb9cf in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #9 0x00007f725fa92d4a in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #10 0x00007f725fa9adec in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #11 0x000055f9a1588264 in ?? () No symbol table info available. #12 0x00007f725edd57e0 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #13 0x000055f9a15888f9 in _start () No symbol table info available.