.
Thread 6 (Thread 0x7f6730c80780 (LWP 7708)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f672f2a07fa in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#2  0x00007f673074b235 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#3  0x00007f67306e0b70 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#4  0x00007f6730688f11 in QQmlEnginePrivate::~QQmlEnginePrivate() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#5  0x00007f67306892c9 in QQmlEnginePrivate::~QQmlEnginePrivate() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#6  0x00007f672f4a3666 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#7  0x00007f6730685869 in QQmlEngine::~QQmlEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#8  0x00007f6730685939 in QQmlEngine::~QQmlEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#9  0x00007f672f49cc9c in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#10 0x00007f672f4a3632 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#11 0x00007f672f999923 in QWindow::~QWindow() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
No symbol table info available.
#12 0x00007f673010d8c9 in QQuickView::~QQuickView() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
No symbol table info available.
#13 0x0000000000402fbb in ?? ()
No symbol table info available.
#14 0x00007f672e94eec5 in __libc_start_main (main=0x4029e0, argc=2, argv=0x7fffa65037d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffa65037c8) at libc-start.c:287
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -8239813870540474447, 4208325, 140735983663056, 0, 0, 8239617339014330289, 8315916336515725233}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x406b20 <__libc_csu_init>, 0x7fffa65037d8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 4221728}}}
        not_first_call = <optimized out>
#15 0x00000000004036ee in _start ()
No symbol table info available.
.
Thread 5 (Thread 0x7f671f7d6700 (LWP 7710)):
#0  0x00007f672ea1fc33 in select () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f672f41f5b1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#2  0x00007f672f2a0233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#3  0x00007f672e3d3182 in start_thread (arg=0x7f671f7d6700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f671f7d6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140080886671104, -8239813870540474447, 0, 0, 140080886671808, 140080886671104, 8316022100604827569, 8315914899205339057}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#4  0x00007f672ea2830d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 4 (Thread 0x7f6725659700 (LWP 7709)):
#0  0x00007f672ea1afbd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f672af80b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
No symbol table info available.
#2  0x00007f672af8264f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
No symbol table info available.
#3  0x00007f67280a74c9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
No symbol table info available.
#4  0x00007f672f2a0233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#5  0x00007f672e3d3182 in start_thread (arg=0x7f6725659700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f6725659700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140080985773824, -8239813870540474447, 0, 0, 140080985774528, 140080985773824, 8315903566486779825, 8315914899205339057}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f672ea2830d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 3 (Thread 0x7f670c52d700 (LWP 7733)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f66fb04e3cb in ?? () from /usr/lib/x86_64-linux-gnu/liblttng-ust.so.0
No symbol table info available.
#2  0x00007f672e3d3182 in start_thread (arg=0x7f670c52d700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f670c52d700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140080565114624, -8239813870540474447, 0, 0, 140080565115328, 140080565114624, 8315989437915412401, 8315914899205339057}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#3  0x00007f672ea2830d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (Thread 0x7f66f9154700 (LWP 7734)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007f66fb04e3cb in ?? () from /usr/lib/x86_64-linux-gnu/liblttng-ust.so.0
No symbol table info available.
#2  0x00007f672e3d3182 in start_thread (arg=0x7f66f9154700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f66f9154700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140080242312960, -8239813870540474447, 0, 0, 140080242313664, 140080242312960, 8316950982845609905, 8315914899205339057}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#3  0x00007f672ea2830d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7f671d5b8700 (LWP 7713)):
#0  0x00007f67306c68b6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#1  0x00007f67306e3098 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#2  0x00007f67306e4ae8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#3  0x00007f67306dca6f in QQmlDataBlob::tryDone() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#4  0x00007f67306dcb49 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#5  0x00007f67306dcdf1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#6  0x00007f67306e1e6c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#7  0x00007f67306e2474 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#8  0x00007f67306e251d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#9  0x00007f67306e5a52 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#10 0x00007f67306e6766 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#11 0x00007f67306dcb85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#12 0x00007f67306dcdf1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#13 0x00007f67306e1e6c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#14 0x00007f67306e237d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#15 0x00007f673074b0c8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#16 0x00007f673074b67a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
No symbol table info available.
#17 0x00007f672f474efd in QCoreApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#18 0x00007f672f474c2d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#19 0x00007f672f476e07 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#20 0x00007f672f4c1cd3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#21 0x00007f672cb87e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#22 0x00007f672cb88048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#23 0x00007f672cb880ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#24 0x00007f672f4c198c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#25 0x00007f672f47396b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#26 0x00007f672f29c23a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#27 0x00007f672f2a0233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#28 0x00007f672e3d3182 in start_thread (arg=0x7f671d5b8700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f671d5b8700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140080850896640, -8239813870540474447, 0, 0, 140080850897344, 140080850896640, 8316026755275634609, 8315914899205339057}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#29 0x00007f672ea2830d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.