Thread 3 (Thread 0x7ffff1200700 (LWP 51402)):
#0  0x00007ffff6c7e96f in __GI___poll (fds=0x7fffe4004e60, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007ffff3d051ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007ffff3d052e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007ffff726b11c in QEventDispatcherGlib::processEvents (this=0x7fffe4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x7fffe4000b80
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#4  0x00007ffff720e30a in QEventLoop::exec (this=this@entry=0x7ffff11ffdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:232
        d = 0x7fffe4003690
        threadData = <optimized out>
        locker = {val = 93824996949128}
        ref = {d = 0x7fffe4003690, locker = @0x7ffff11ffd80, exceptionCaught = true}
        app = <optimized out>
#5  0x00007ffff7027134 in QThread::exec (this=this@entry=0x7ffff2d95d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:540
        d = 0x5555559d3c30
        locker = {val = 93824996949128}
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff7760208 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff742abc0 <qt_meta_stringdata_QObject>, data = 0x7ffff742aaa0 <qt_meta_data_QObject>, static_metacall = 0x7ffff72462e0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7fffe4003690}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff742db60 <qt_meta_stringdata_Qt>, data = 0x7ffff742ace0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff7757ac0 <QObject::staticMetaObject>}, stringdata = 0x7ffff7425300 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff74252a0 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff720e030 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#6  0x00007ffff2b20f65 in QDBusConnectionManager::run (this=0x7ffff2d95d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
        locker = <optimized out>
#7  0x00007ffff7028415 in QThreadPrivate::start (arg=0x7ffff2d95d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:342
        thr = 0x7ffff2d95d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>
        data = 0x5555555deee0
        __clframe = {__cancel_routine = 0x7ffff7027890 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x7ffff2d95d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>, __do_it = 1, __cancel_type = <optimized out>}
#8  0x00007ffff6219609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140737238796032, 3775873227566068512, 140737488345646, 140737488345647, 140737488345824, 140737238794112, -3775852061992963296, -3775858226510580960}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#9  0x00007ffff6c8b103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 2 (Thread 0x7ffff231f700 (LWP 51401)):
#0  0x00007ffff6c7e96f in __GI___poll (fds=0x7ffff231ed08, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007ffff39f6c1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
No symbol table info available.
#2  0x00007ffff39f890a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
No symbol table info available.
#3  0x00007ffff2f014c0 in QXcbEventQueue::run (this=0x555555585660) at qxcbeventqueue.cpp:228
        event = <optimized out>
        connection = <optimized out>
        tail = 0x7ffff31f3de0 <QXcbEventQueue::qXcbEventNodeFactory(xcb_generic_event_t*)::qXcbNodePool+2208>
        enqueueEvent = {__tail = <synthetic pointer><error reading variable>, __this = 0x555555585660}
#4  0x00007ffff7028415 in QThreadPrivate::start (arg=0x555555585660) at thread/qthread_unix.cpp:342
        thr = 0x555555585660
        data = 0x555555585b40
        __clframe = {__cancel_routine = 0x7ffff7027890 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x555555585660, __do_it = 1, __cancel_type = <optimized out>}
#5  0x00007ffff6219609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140737256748800, 3775873227566068512, 140737488344606, 140737488344607, 140737488344784, 140737256746880, -3775849570375060704, -3775858226510580960}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007ffff6c8b103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 1 (Thread 0x7ffff39bc780 (LWP 51397)):
#0  MainWindow::on_doubleSpinBox_valueChanged (this=0x7fffffffdd20, arg1=2) at ../mainwindow.cpp:25
        __PRETTY_FUNCTION__ = "void MainWindow::on_doubleSpinBox_valueChanged(double)"
#1  0x0000555555558371 in MainWindow::qt_static_metacall (_o=0x7fffffffdd20, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffffffd580) at moc_mainwindow.cpp:74
        _t = 0x7fffffffdd20
#2  0x0000555555558478 in MainWindow::qt_metacall (this=0x7fffffffdd20, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffffffd580) at moc_mainwindow.cpp:110
No locals.
#3  0x00007ffff7247ee7 in doActivate<false> (sender=0x5555555d0360, signal_index=8, argv=argv@entry=0x7fffffffd580) at kernel/qobject.cpp:3912
        method = <optimized out>
        receiver = <optimized out>
        td = <optimized out>
        receiverInSameThread = true
        senderData = {previous = 0x0, receiver = 0x7fffffffdd20, sender = 0x5555555d0360, signal = 8}
        c = 0x5555559dc550
        connections = {d = 0x5555556accc0}
        list = <optimized out>
        inSenderThread = true
        highestConnectionId = <optimized out>
        signalVector = <optimized out>
        currentThreadId = 0x7ffff39bc780
        sp = <optimized out>
        signal_spy_set = 0x0
        empty_argv = {0x0}
        senderDeleted = false
#4  0x00007ffff72413c9 in QMetaObject::activate (sender=sender@entry=0x5555555d0360, m=m@entry=0x7ffff7fa91c0 <QDoubleSpinBox::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffffffd580) at kernel/qobject.cpp:3946
        signal_index = <optimized out>
#5  0x00007ffff7a5e940 in QDoubleSpinBox::valueChanged (this=this@entry=0x5555555d0360, _t1=2) at .moc/moc_qspinbox.cpp:488
        _a = {0x0, 0x7fffffffd578}
#6  0x00007ffff7a5eb70 in QDoubleSpinBoxPrivate::emitSignals (this=0x5555555df0e0, ep=<optimized out>, old=...) at widgets/qspinbox.cpp:1262
        q = <optimized out>
#7  0x00007ffff7a5bdca in QAbstractSpinBoxPrivate::setValue (this=this@entry=0x5555555df0e0, val=..., ep=ep@entry=EmitIfChanged, doUpdate=doUpdate@entry=true) at widgets/qabstractspinbox.cpp:1795
        q = <optimized out>
        old = {d = {data = {c = 0 '\000', uc = 0 '\000', s = 0, sc = 0 '\000', us = 0, i = 0, u = 0, l = 4607182418800017408, ul = 4607182418800017408, b = false, d = 1, f = 0, real = 1, ll = 4607182418800017408, ull = 4607182418800017408, o = 0x3ff0000000000000, ptr = 0x3ff0000000000000, shared = 0x3ff0000000000000}, type = 6, is_shared = 0, is_null = 0}}
#8  0x00007ffff7a5cd34 in QAbstractSpinBox::stepBy (this=0x5555555d0360, steps=1) at widgets/qabstractspinbox.cpp:670
        singleStep = {d = {data = {c = 0 '\000', uc = 0 '\000', s = 0, sc = 0 '\000', us = 0, i = 0, u = 0, l = 4607182418800017408, ul = 4607182418800017408, b = false, d = 1, f = 0, real = 1, ll = 4607182418800017408, ull = 4607182418800017408, o = 0x3ff0000000000000, ptr = 0x3ff0000000000000, shared = 0x3ff0000000000000}, type = 6, is_shared = 0, is_null = 0}}
        d = <optimized out>
        old = {d = {data = {c = 0 '\000', uc = 0 '\000', s = 0, sc = 0 '\000', us = 0, i = 0, u = 0, l = 4607182418800017408, ul = 4607182418800017408, b = false, d = 1, f = 0, real = 1, ll = 4607182418800017408, ull = 4607182418800017408, o = 0x3ff0000000000000, ptr = 0x3ff0000000000000, shared = 0x3ff0000000000000}, type = 6, is_shared = 0, is_null = 0}}
        tmp = {static null = {<No data fields>}, d = 0x5555556ae3c0}
        cursorPos = 0
        dontstep = <optimized out>
        e = EmitIfChanged
#9  0x00007ffff723ecab in QObject::event (this=this@entry=0x5555555d0360, e=e@entry=0x7fffffffda80) at kernel/qobject.cpp:1336
No locals.
#10 0x00007ffff7909943 in QWidget::event (this=this@entry=0x5555555d0360, event=event@entry=0x7fffffffda80) at kernel/qwidget.cpp:9088
        d = <optimized out>
#11 0x00007ffff7a5df2d in QAbstractSpinBox::event (this=0x5555555d0360, event=0x7fffffffda80) at widgets/qabstractspinbox.cpp:822
        d = <optimized out>
#12 0x00007ffff78cb13c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5555555d0360, e=0x7fffffffda80) at kernel/qapplication.cpp:3671
        consumed = <optimized out>
        filtered = <optimized out>
        this = <optimized out>
        e = 0x7fffffffda80
        receiver = 0x5555555d0360
        widget = <optimized out>
        layout = <optimized out>
#13 0x00007ffff78d1d10 in QApplication::notify (this=0x7fffffffdd10, receiver=0x5555555d0360, e=0x7fffffffda80) at kernel/qapplication.cpp:3417
        w = 0x5555555d0360
        extra = <optimized out>
        isProxyWidget = <optimized out>
        d = <optimized out>
        res = false
#14 0x00007ffff720f8f8 in QCoreApplication::notifyInternal2 (receiver=0x5555555d0360, event=0x7fffffffda80) at kernel/qcoreapplication.cpp:1061
        selfRequired = true
        result = false
        cbdata = {0x5555555d0360, 0x7fffffffda80, 0x7fffffffd9ff}
        d = <optimized out>
        threadData = <optimized out>
        scopeLevelCounter = {threadData = 0x555555579320}
#15 0x00007ffff720faae in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x7fffffffda80) at kernel/qcoreapplication.cpp:1456
No locals.
#16 0x00007ffff726a5d9 in QTimerInfoList::activateTimers (this=0x5555555db730) at kernel/qtimerinfo_unix.cpp:643
        e = {<QEvent> = {_vptr.QEvent = 0x7ffff7760470 <vtable for QTimerEvent+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff7426420 <qt_meta_stringdata_QEvent>, data = 0x7ffff7425e60 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 1, posted = 0, spont = 0, m_accept = 1, reserved = 0}, id = 3}
        currentTimerInfo = 0x0
        n_act = 2
        maxCount = <optimized out>
        currentTime = {tv_sec = 18776, tv_nsec = 226773093}
#17 0x00007ffff726adb1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
        timerSource = <optimized out>
#18 0x00007ffff3d04fbd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#19 0x00007ffff3d05240 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#20 0x00007ffff3d052e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#21 0x00007ffff726b11c in QEventDispatcherGlib::processEvents (this=0x5555555d03e0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x555555586840
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#22 0x00007ffff720e30a in QEventLoop::exec (this=this@entry=0x7fffffffdcb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:232
        d = 0x7fffe40147f0
        threadData = <optimized out>
        locker = {val = 93824992384024}
        ref = {d = 0x7fffe40147f0, locker = @0x7fffffffdc40, exceptionCaught = true}
        app = <optimized out>
#23 0x00007ffff72172b3 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1369
        threadData = <optimized out>
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff7760208 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff742abc0 <qt_meta_stringdata_QObject>, data = 0x7ffff742aaa0 <qt_meta_data_QObject>, static_metacall = 0x7ffff72462e0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7fffe40147f0}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff742db60 <qt_meta_stringdata_Qt>, data = 0x7ffff742ace0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff7757ac0 <QObject::staticMetaObject>}, stringdata = 0x7ffff7425300 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff74252a0 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff720e030 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#24 0x0000555555557647 in main (argc=1, argv=0x7fffffffde68) at ../main.cpp:10
        a = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7ffff7f99428 <vtable for QApplication+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff742abc0 <qt_meta_stringdata_QObject>, data = 0x7ffff742aaa0 <qt_meta_data_QObject>, static_metacall = 0x7ffff72462e0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5555555791b0}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff742db60 <qt_meta_stringdata_Qt>, data = 0x7ffff742ace0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff7757ac0 <QObject::staticMetaObject>}, stringdata = 0x7ffff74259a0 <qt_meta_stringdata_QCoreApplication>, data = 0x7ffff7425880 <qt_meta_data_QCoreApplication>, static_metacall = 0x7ffff72113c0 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7fffffffdd10}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff77603a0 <QCoreApplication::staticMetaObject>}, stringdata = 0x7ffff6823be0 <qt_meta_stringdata_QGuiApplication>, data = 0x7ffff6823960 <qt_meta_data_QGuiApplication>, static_metacall = 0x7ffff639e6a0 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff6b4e480 <QGuiApplication::staticMetaObject>}, stringdata = 0x7ffff7c34e60 <qt_meta_stringdata_QApplication>, data = 0x7ffff7c34ce0 <qt_meta_data_QApplication>, static_metacall = 0x7ffff78cf290 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        w = {<QMainWindow> = {<QWidget> = {<QObject> = {_vptr.QObject = 0x55555555ca20 <vtable for MainWindow+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff742abc0 <qt_meta_stringdata_QObject>, data = 0x7ffff742aaa0 <qt_meta_data_QObject>, static_metacall = 0x7ffff72462e0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5555555909d0}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff742db60 <qt_meta_stringdata_Qt>, data = 0x7ffff742ace0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, <QPaintDevice> = {_vptr.QPaintDevice = 0x55555555cbd8 <vtable for MainWindow+456>, painters = 0, reserved = 0x0}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff7757ac0 <QObject::staticMetaObject>}, stringdata = 0x7ffff7c387c0 <qt_meta_stringdata_QWidget>, data = 0x7ffff7c380e0 <qt_meta_data_QWidget>, static_metacall = 0x7ffff7908480 <QWidget::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, data = 0x555555590af0}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff7f9a840 <QWidget::staticMetaObject>}, stringdata = 0x7ffff7c588a0 <qt_meta_stringdata_QMainWindow>, data = 0x7ffff7c586a0 <qt_meta_data_QMainWindow>, static_metacall = 0x7ffff7a11240 <QMainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x7ffff7fa4430 <qt_meta_extradata_QMainWindow>, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff7fa4400 <QMainWindow::staticMetaObject>}, stringdata = 0x55555555b080 <qt_meta_stringdata_MainWindow>, data = 0x55555555b120 <qt_meta_data_MainWindow>, static_metacall = 0x555555558324 <MainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, ui = 0x5555555ca440}