Thread 2 (LWP 2962):
#0  0x0000ffff7f8dc218 in __GI___poll (fds=0xffff740013e0, nfds=1, timeout=<optimized out>) at /usr/src/debug/glibc/2.24-r0/git/sysdeps/unix/sysv/linux/generic/poll.c:38
        _x3tmp = 0
        _x0tmp = 281472627905504
        _x0 = 281472627905504
        _x3 = 0
        _x4tmp = 0
        _x1tmp = 1
        _x1 = 1
        _x4 = 0
        _x2 = 0
        _x8 = 73
        _sys_result = <optimized out>
        _sys_result = <optimized out>
        sc_cancel_oldtype = 0
        timeout_ts = {tv_sec = 281472761255916, tv_nsec = 1}
        timeout_ts_p = <optimized out>
#1  0x0000ffff7ef1a1dc in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0xffff740013e0, timeout=<optimized out>, context=0xffff74000990) at /usr/src/debug/glib-2.0/1_2.48.2-r0/glib-2.48.2/glib/gmain.c:4135
        poll_func = 0xffff7ef28ca0 <g_poll>
#2  g_main_context_iterate (context=context@entry=0xffff74000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/glib-2.0/1_2.48.2-r0/glib-2.48.2/glib/gmain.c:3835
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0xffff740013e0
#3  0x0000ffff7ef1a2f4 in g_main_context_iteration (context=0xffff74000990, may_block=may_block@entry=1) at /usr/src/debug/glib-2.0/1_2.48.2-r0/glib-2.48.2/glib/gmain.c:3901
        retval = <optimized out>
#4  0x0000ffff7fe0adc0 in QEventDispatcherGlib::processEvents (this=0xffff740008c0, flags=...) at /usr/src/debug/qtbase/5.10.0+gitAUTOINC+4480f47f7b-r0/git/src/corelib/kernel/qeventdispatcher_glib.cpp:423
        d = 0xffff740008e0
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#5  0x0000ffff7fdb27f4 in QEventLoop::exec (this=this@entry=0xffff7bf2d910, flags=flags@entry=...) at /usr/src/debug/qtbase/5.10.0+gitAUTOINC+4480f47f7b-r0/git/src/corelib/kernel/qeventloop.cpp:212
        d = 0xffff74003190
        locker = {val = 565412000}
        ref = {d = 0xffff74003190, locker = @0xffff7bf2d8e8, exceptionCaught = true}
#6  0x0000ffff7fbe0a90 in QThread::exec (this=this@entry=0x21b1a0d0) at /usr/src/debug/qtbase/5.10.0+gitAUTOINC+4480f47f7b-r0/git/src/corelib/thread/qthread.cpp:515
        d = 0x21b38030
        locker = {val = 565412000}
        eventLoop = {<QObject> = {_vptr.QObject = 0xffff80077430 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0xffff7ff6b7c0 <qt_meta_stringdata_QObject>, data = 0xffff7ff6b900 <qt_meta_data_QObject>, static_metacall = 0xffff7fde9220 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0xffff74003190}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0xffff7ff6e590 <qt_meta_stringdata_Qt>, data = 0xffff7ff6ba20 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0xffff8006fbc0 <QObject::staticMetaObject>, stringdata = 0xffff7ff68550 <qt_meta_stringdata_QEventLoop>, data = 0xffff7ff685b0 <qt_meta_data_QEventLoop>, static_metacall = 0xffff7fdb24b0 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#7  0x0000ffff803820e4 in QQmlThreadPrivate::run (this=0x21b1a0d0) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/qml/ftw/qqmlthread.cpp:147
No locals.
#8  0x0000ffff7fbe5984 in QThreadPrivate::start (arg=0x21b1a0d0) at /usr/src/debug/qtbase/5.10.0+gitAUTOINC+4480f47f7b-r0/git/src/corelib/thread/qthread_unix.cpp:376
        thr = 0x21b1a0d0
        data = 0x21b2cc10
        __clframe = {__cancel_routine = 0xffff7fbe4b70 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x21b1a0d0, __do_it = 1, __cancel_type = <optimized out>}
#9  0x0000ffff7f5c3080 in start_thread (arg=0xffff7f5e7000 <__pthread_keys+15744>) at /usr/src/debug/glibc/2.24-r0/git/nptl/pthread_create.c:335
        pd = 0xffff7f5e7000 <__pthread_keys+15744>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {281472761258400, 281474440621856, 0, 281474440621631, 281472818638848, 281472824924192, 0, 1, 281472761258400, 0, 281472761256336, 18424707402775671313, 0, 18424707402832731093, 0, 0, 0, 0, 0, 0, 0, 0}, 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"
#10 0x0000ffff7f8e4618 in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:87
No locals.

Thread 1 (LWP 2961):
#0  0x0000ffff7a3120c0 in ?? ()
No symbol table info available.
#1  0x0000ffff80233ab8 in QV4::ExecutionContext::simpleCall (this=<optimized out>, scope=..., callData=<optimized out>, function=0x21bc4cf0) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/jsruntime/qv4context.cpp:300
        ctxSaver = {scope = {engine = 0x21b3a8c0, mark = 0xffff7aef0370, result = @0xffff7aef0370}, savedContext = 0xffff7aef0010}
#2  0x0000ffff80233ab8 in QV4::ExecutionContext::simpleCall (this=<optimized out>, scope=..., callData=callData@entry=0xffff7aef0328, function=0x21be1b50) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/jsruntime/qv4context.cpp:300
        ctxSaver = {scope = {engine = 0xffff80363164 <QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*, QV4::Scope&)+500>, mark = 0xffff7aef0328, result = @0xffff7aef0328}, savedContext = 0x21b2bfa0}
#3  0x0000ffff80363164 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x21be1b50, callData=0xffff7aef0328, isUndefined=0xffffe00bec6f, isUndefined@entry=0xffffe00bec9f, scope=...) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/qml/qqmljavascriptexpression.cpp:222
        v4Function = <optimized out>
        watcher = {_c = 0x0, _w = 0xffffe00bed10, _s = 0x21be1b50}
        capture = {engine = 0x21b16f60, expression = 0x21be1b50, watcher = 0xffffe00bebb0, guards = {_first = 0x0, _last = 0x0, _flag = 0, _count = 0}, errorString = 0x0}
        lastPropertyCapture = 0x0
#4  0x0000ffff8036d3f4 in QQmlNonbindingBinding::doUpdate (this=0x21be1b50, watcher=..., flags=..., scope=...) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/qml/qqmlbinding.cpp:206
        isUndefined = false
        callData = <optimized out>
        error = <optimized out>
#5  0x0000ffff8036ac04 in QQmlBinding::update (this=0x21be1b50, flags=...) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/qml/qqmlbinding.cpp:167
        watcher = {_c = 0x21bdd830, _w = 0xffffe00bed10, _s = 0x21be1b50}
        scope = {engine = 0x21b3a8c0, mark = 0xffff7aef0320, result = @0xffff7aef0320}
        prof = {<QQmlProfilerHelper> = {<QQmlProfilerDefinitions> = {<No data fields>}, profiler = 0x0}, <No data fields>}
#6  0x0000ffff803763d8 in QQmlObjectCreator::finalize (this=0x21b812f0, interrupt=...) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/qml/qqmlobjectcreator.cpp:1223
        data = <optimized out>
        watcher = {sharedState = {d = 0x21b81400}, watcher = {_t = 0x21b81400, _r = false}}
        ocRestorer = {ep = 0x21b2bfa0, oldCreator = 0x21b4d830}
#7  0x0000ffff802f5ea4 in QQmlComponentPrivate::complete (enginePriv=0x21b2bfa0, state=0x21b71f70) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/qml/qqmlcomponent.cpp:900
        interrupt = {mode = QQmlInstantiationInterrupt::None, timer = {t1 = -9223372036854775808, t2 = -9223372036854775808}, nsecs = 0, runWhile = 0x0}
        state = 0x21b71f70
        enginePriv = 0x21b2bfa0
#8  0x0000ffff802f5f88 in QQmlComponentPrivate::completeCreate (this=0x21b71ed0) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/qml/qqmlcomponent.cpp:936
No locals.
#9  0x0000ffff802f5dc0 in QQmlComponent::create (this=0x21b71b40, context=0x21b6d5a0) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/qml/qml/qqmlcomponent.cpp:769
        _qml_memory_scope = {static state = QQmlMemoryScope::Failed, pushed = false}
        rv = 0x21b4d830
#10 0x0000ffff80b791c8 in QQuickView::continueExecute (this=0x401d10 <main(int, char**)+400>, this@entry=0xffffe00bf078) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/quick/items/qquickview.cpp:471
        obj = <optimized out>
#11 0x0000ffff80b795d0 in QQuickViewPrivate::execute (this=0x21b2a020) at /usr/src/debug/qtdeclarative/5.10.0+gitAUTOINC+7ab6f0dda1-r0/git/src/quick/items/qquickview.cpp:107
        _qml_memory_scope = {static state = QQmlMemoryScope::Failed, pushed = false}
#12 0x0000000000401d10 in main (argc=1, argv=0xffffe00bf268) at ../../examples/qmlcluster/main.cpp:67
        app = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0xffff808c9d60 <vtable for QGuiApplication+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0xffff7ff6b7c0 <qt_meta_stringdata_QObject>, data = 0xffff7ff6b900 <qt_meta_data_QObject>, static_metacall = 0xffff7fde9220 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x21a6d870}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0xffff7ff6e590 <qt_meta_stringdata_Qt>, data = 0xffff7ff6ba20 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0xffff8006fbc0 <QObject::staticMetaObject>, stringdata = 0xffff7ff68630 <qt_meta_stringdata_QCoreApplication>, data = 0xffff7ff68850 <qt_meta_data_QCoreApplication>, static_metacall = 0xffff7fdb5e70 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0xffffe00bf0a0}, static staticMetaObject = {d = {superdata = 0xffff800775a8 <QCoreApplication::staticMetaObject>, stringdata = 0xffff8087e520 <qt_meta_stringdata_QGuiApplication>, data = 0xffff8087ea10 <qt_meta_data_QGuiApplication>, static_metacall = 0xffff8056c9e0 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        viewer = {<QQuickWindow> = {<QWindow> = {<QObject> = {_vptr.QObject = 0xffff80cab0a8 <vtable for QQuickView+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0xffff7ff6b7c0 <qt_meta_stringdata_QObject>, data = 0xffff7ff6b900 <qt_meta_data_QObject>, static_metacall = 0xffff7fde9220 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x21b2a020}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0xffff7ff6e590 <qt_meta_stringdata_Qt>, data = 0xffff7ff6ba20 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, <QSurface> = {_vptr.QSurface = 0xffff80cab1d0 <vtable for QQuickView+312>, m_type = QSurface::Window, m_reserved = 0x0}, static staticMetaObject = {d = {superdata = 0xffff8006fbc0 <QObject::staticMetaObject>, stringdata = 0xffff8087f260 <qt_meta_stringdata_QWindow>, data = 0xffff8087fe00 <qt_meta_data_QWindow>, static_metacall = 0xffff805738a0 <QWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0xffff808c9ff8 <QWindow::staticMetaObject>, stringdata = 0xffff80c510c8 <qt_meta_stringdata_QQuickWindow>, data = 0xffff80c51778 <qt_meta_data_QQuickWindow>, static_metacall = 0xffff80af2150 <QQuickWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0xffff80ca3670 <QQuickWindow::staticMetaObject>, stringdata = 0xffff80c60c50 <qt_meta_stringdata_QQuickView>, data = 0xffff80c60f48 <qt_meta_data_QQuickView>, static_metacall = 0xffff80b79780 <QQuickView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        extraImportPath1 = {static null = {<No data fields>}, d = 0x113d200 <main::{lambda()#2}::operator()() const::qstring_literal>}
        extraImportPath2 = {static null = {<No data fields>}, d = 0x113d228 <main::{lambda()#3}::operator()() const::qstring_literal>}