Thread 8 (Thread 0x7fffdae7e700 (LWP 32425)):
#0  0x00007ffff78b19f3 in QSGOpaqueTextureMaterialShader::updateState (this=0x7fffc01c61a0, state=..., newEffect=0x7fffc020c9f8, oldEffect=0x0) at scenegraph/util/qsgtexturematerial.cpp:121
        tx = 0x7fffc020c9f8
        oldTx = 0x0
        t = 0x7fffc0223bb0
#1  0x00007ffff78b1d8a in QSGTextureMaterialShader::updateState (this=0x7fffc01c61a0, state=..., newEffect=0x7fffc020c9f8, oldEffect=0x0) at scenegraph/util/qsgtexturematerial.cpp:392
No locals.
#2  0x00007ffff78a1b5f in QSGDefaultRenderer::renderNodes (this=0x7fffc020dad0, nodes=0x7fffc020b050, count=3) at scenegraph/coreapi/qsgdefaultrenderer.cpp:528
        geomNode = 0x7fffc020c8c0
        changeMatrix = true
        g = 0x7fffc02240a8
        updates = {i = 3}
        changeClip = false
        changeProgram = true
        changeRenderOrder = false
        changeOpacity = false
        material = 0x7fffc020c9f8
        program = 0x7fffc01c61a0
        i = 2
        currentClipType = {i = 0}
        scale = 1
        currentRenderOrder = 0
        projection = {m = {{0.00400000019, 0, 0, 0}, {0, -0.00400000019, 0, 0}, {0, 0, 1, 0}, {-1, 1, 0, 1}}, flagBits = 3}
#3  0x00007ffff78a097c in QSGDefaultRenderer::render (this=0x7fffc020dad0) at scenegraph/coreapi/qsgdefaultrenderer.cpp:281
        opaqueEnd = 0
        transparentEnd = 3
        i = 0
        r = {x1 = 0, y1 = 0, x2 = 499, y2 = 499}
        sortNodes = true
        opaqueStart = 0
        transparentStart = 0
#4  0x00007ffff78a979d in QSGRenderer::renderScene (this=0x7fffc020dad0, bindable=...) at scenegraph/coreapi/qsgrenderer.cpp:274
        profileFrames = false
        bindTime = 0
        renderTime = 0
        __PRETTY_FUNCTION__ = "void QSGRenderer::renderScene(const QSGBindable&)"
#5  0x00007ffff78a9612 in QSGRenderer::renderScene (this=0x7fffc020dad0) at scenegraph/coreapi/qsgrenderer.cpp:231
        b = {<QSGBindable> = {_vptr.QSGBindable = 0x7ffff7d9f4f0}, <No data fields>}
#6  0x00007ffff78bc70d in QSGContext::renderNextFrame (this=0x810ef0, renderer=0x7fffc020dad0, fboId=0) at scenegraph/qsgcontext.cpp:313
No locals.
#7  0x00007ffff790a6e3 in QQuickWindowPrivate::renderSceneGraph (this=0x810c10, size=...) at items/qquickwindow.cpp:336
        _qml_memory_scope = {pushed = false}
        q = 0x7fffffffe440
        fboId = 0
        devicePixelRatio = 1
#8  0x00007ffff78dfec3 in QSGRenderThread::syncAndRender (this=0x811470) at scenegraph/qsgthreadedrenderloop.cpp:595
        w = @0x7fffc00013e0: {window = 0x7fffffffe440, size = {wd = 500, ht = 500}}
        d = 0x810c10
        i = 0
        profileFrames = false
        syncRequested = true
        __PRETTY_FUNCTION__ = "void QSGRenderThread::syncAndRender()"
        waitTimer = {t1 = 947716, t2 = 841229100}
        repaintRequested = false
#9  0x00007ffff78e02bc in QSGRenderThread::run (this=0x811470) at scenegraph/qsgthreadedrenderloop.cpp:666
No locals.
#10 0x00007ffff62f0569 in QThreadPrivate::start (arg=0x811470) at thread/qthread_unix.cpp:345
        __clframe = {__cancel_routine = 0x7ffff62f05ee <QThreadPrivate::finish(void*)>, __cancel_arg = 0x811470, __do_it = 1, __cancel_type = 0}
        thr = 0x811470
        data = 0x811640
        objectName = {static null = {<No data fields>}, d = 0x7ffff69f1420}
#11 0x00007ffff4473e9a in start_thread (arg=0x7fffdae7e700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fffdae7e700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {1, -5617177424494641100, 140737488346144, 140736866019776, 0, 3, 5617241263763308596, 5617165671267254324}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#12 0x00007ffff5a61ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#13 0x0000000000000000 in ?? ()
No symbol table info available.

Thread 7 (Thread 0x7fffdbdce700 (LWP 32387)):
#0  0x00007ffff5a56313 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007ffff3242036 in g_main_context_poll (n_fds=3, fds=0x7fffcc0044b0, timeout=-1, context=0x7fffcc000990, priority=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
        poll_func = 0x7ffff324ef40 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fffcc000990, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7fffcc0044b0
        max_priority = 2147483647
        nfds = 3
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7fffcc000990, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
        some_ready = -872397648
#4  0x00007ffff3242164 in g_main_context_iteration (context=0x7fffcc000990, may_block=1) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
        retval = <optimized out>
#5  0x00007ffff65a2133 in QEventDispatcherGlib::processEvents (this=0x7fffcc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:428
        d = 0x7fffcc0008e0
        canWait = true
        savedFlags = {i = 0}
        result = false
#6  0x00007ffff652d0d4 in QEventLoop::processEvents (this=0x7fffdbdcdca0, flags=...) at kernel/qeventloop.cpp:136
        d = 0x7fffcc004f10
#7  0x00007ffff652d3ad in QEventLoop::exec (this=0x7fffdbdcdca0, flags=...) at kernel/qeventloop.cpp:212
        locker = {val = 8794880}
        __PRETTY_FUNCTION__ = "int QEventLoop::exec(QEventLoop::ProcessEventsFlags)"
        ref = {d = 0x7fffcc004f10, locker = @0x7fffdbdcdc40, exceptionCaught = true}
        app = 0x7fffffffe470
        d = 0x7fffcc004f10
#8  0x00007ffff62e9abc in QThread::exec (this=0x863200) at thread/qthread.cpp:507
        d = 0x863290
        locker = {val = 8794880}
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff69ee3b0, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4320, data = 0x7ffff66bc280, static_metacall = 0x7ffff65734c4 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7fffcc004f10}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4e80, data = 0x7ffff6708640, static_metacall = 0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff69eac60, stringdata = 0x7ffff6a05700, data = 0x7ffff670e060, static_metacall = 0x7ffff65faf38 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = 32767
#9  0x00007ffff73ebba2 in QQmlDebugServerThread::run (this=0x863200) at debugger/qqmldebugserver.cpp:236
        server = 0x860e20
        connection = 0x7fffcc002db0
        __PRETTY_FUNCTION__ = "virtual void QQmlDebugServerThread::run()"
        eventLoop = {<QObject> = {_vptr.QObject = 0x7fffdbdcdd60, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4320, data = 0x7ffff66bc280, static_metacall = 0x7ffff65734c4 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7ffff66bc280}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4e80, data = 0x7ffff6708640, static_metacall = 0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff69eac60, stringdata = 0x7ffff6a05700, data = 0x7ffff670e060, static_metacall = 0x7ffff65faf38 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
#10 0x00007ffff62f0569 in QThreadPrivate::start (arg=0x863200) at thread/qthread_unix.cpp:345
        __clframe = {__cancel_routine = 0x7ffff62f05ee <QThreadPrivate::finish(void*)>, __cancel_arg = 0x863200, __do_it = 1, __cancel_type = 0}
        thr = 0x863200
        data = 0x861050
        objectName = {static null = {<No data fields>}, d = 0x7ffff69f1420}
#11 0x00007ffff4473e9a in start_thread (arg=0x7fffdbdce700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fffdbdce700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {1, -5617177424494641100, 140737488346912, 140736882076096, 0, 3, 5617239279488417844, 5617165671267254324}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#12 0x00007ffff5a61ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#13 0x0000000000000000 in ?? ()
No symbol table info available.

Thread 6 (Thread 0x7ffff7ff0700 (LWP 32386)):
#0  sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:86
No locals.
#1  0x00007ffff5136c03 in v8::internal::LinuxSemaphore::Wait (this=0x7fffc80008c0) at ../3rdparty/v8/src/platform-linux.cc:884
        result = 32767
#2  0x00007ffff500a969 in v8::internal::RuntimeProfiler::WaitForSomeIsolateToEnterJS () at ../3rdparty/v8/src/runtime-profiler.cc:452
        old_state = 0
#3  0x00007ffff500ab2f in v8::internal::RuntimeProfilerRateLimiter::SuspendIfNecessary (this=0x84d14c) at ../3rdparty/v8/src/runtime-profiler.cc:499
No locals.
#4  0x00007ffff5137c70 in v8::internal::SignalSender::Run (this=0x84d120) at ../3rdparty/v8/src/platform-linux.cc:1164
        cpu_profiling_enabled = false
        runtime_profiler_enabled = true
        state = v8::internal::SamplerRegistry::HAS_SAMPLERS
#5  0x00007ffff5136964 in v8::internal::ThreadEntry (arg=0x84d120) at ../3rdparty/v8/src/platform-linux.cc:760
        thread = 0x84d120
#6  0x00007ffff4473e9a in start_thread (arg=0x7ffff7ff0700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7ffff7ff0700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {1, -5617177424494641100, 140737488346656, 140737354074560, 0, 3, 5617159823667183668, 5617165671267254324}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007ffff5a61ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 5 (Thread 0x7fffe0c75700 (LWP 32385)):
#0  0x00007ffff5a56313 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007ffff3242036 in g_main_context_poll (n_fds=1, fds=0x7fffd00029b0, timeout=-1, context=0x7fffd0000990, priority=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
        poll_func = 0x7ffff324ef40 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fffd0000990, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7fffd00029b0
        max_priority = 2147483647
        nfds = 1
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7fffd0000990, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
        some_ready = -805295696
#4  0x00007ffff3242164 in g_main_context_iteration (context=0x7fffd0000990, may_block=1) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
        retval = <optimized out>
#5  0x00007ffff65a2113 in QEventDispatcherGlib::processEvents (this=0x7fffd00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
        d = 0x7fffd00008e0
        canWait = true
        savedFlags = {i = 0}
        result = false
#6  0x00007ffff652d0d4 in QEventLoop::processEvents (this=0x7fffe0c74d60, flags=...) at kernel/qeventloop.cpp:136
        d = 0x7fffd0002920
#7  0x00007ffff652d3ad in QEventLoop::exec (this=0x7fffe0c74d60, flags=...) at kernel/qeventloop.cpp:212
        locker = {val = 8464256}
        __PRETTY_FUNCTION__ = "int QEventLoop::exec(QEventLoop::ProcessEventsFlags)"
        ref = {d = 0x7fffd0002920, locker = @0x7fffe0c74d00, exceptionCaught = true}
        app = 0x7fffffffe470
        d = 0x7fffd0002920
#8  0x00007ffff62e9abc in QThread::exec (this=0x812680) at thread/qthread.cpp:507
        d = 0x812710
        locker = {val = 8464256}
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff69ee3b0, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4320, data = 0x7ffff66bc280, static_metacall = 0x7ffff65734c4 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7fffd0002920}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4e80, data = 0x7ffff6708640, static_metacall = 0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff69eac60, stringdata = 0x7ffff6a05700, data = 0x7ffff670e060, static_metacall = 0x7ffff65faf38 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = 0
#9  0x00007ffff736e0f5 in QQmlThreadPrivate::run (this=0x812680) at qml/ftw/qqmlthread.cpp:148
No locals.
#10 0x00007ffff62f0569 in QThreadPrivate::start (arg=0x812680) at thread/qthread_unix.cpp:345
        __clframe = {__cancel_routine = 0x7ffff62f05ee <QThreadPrivate::finish(void*)>, __cancel_arg = 0x812680, __do_it = 1, __cancel_type = 0}
        thr = 0x812680
        data = 0x812830
        objectName = {static null = {<No data fields>}, d = 0x7ffff69f1420}
#11 0x00007ffff4473e9a in start_thread (arg=0x7fffe0c75700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fffe0c75700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {1, -5617177424494641100, 140737488347744, 140736964549056, 0, 3, 5617122787627319348, 5617165671267254324}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#12 0x00007ffff5a61ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#13 0x0000000000000000 in ?? ()
No symbol table info available.

Thread 4 (Thread 0x7fffe1476700 (LWP 32384)):
#0  0x00007ffff5a56313 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007ffff3242036 in g_main_context_poll (n_fds=3, fds=0x7fffd40010c0, timeout=-1, context=0x7fffdc010570, priority=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
        poll_func = 0x7ffff324ef40 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fffdc010570, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7fffd40010c0
        max_priority = 2147483647
        nfds = 3
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7fffdc010570, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
        some_ready = -738193216
#4  0x00007ffff324249a in g_main_loop_run (loop=0x7fffdc010520) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007fffe8fd0406 in gdbus_shared_thread_func (user_data=<optimized out>) at /build/buildd/glib2.0-2.32.3/./gio/gdbusprivate.c:277
        data = 0x7fffdc010540
#6  0x00007ffff32639e5 in g_thread_proxy (data=0x7fffdc00c540) at /build/buildd/glib2.0-2.32.3/./glib/gthread.c:801
        thread = 0x7fffdc00c540
#7  0x00007ffff4473e9a in start_thread (arg=0x7fffe1476700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fffe1476700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {1, -5617177424494641100, 140736998570736, 140736972941760, 0, 3, 5617119488555565108, 5617165671267254324}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007ffff5a61ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 3 (Thread 0x7fffe2ce8700 (LWP 32383)):
#0  0x00007ffff5a56313 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007ffff3242036 in g_main_context_poll (n_fds=1, fds=0x7fffdc0010e0, timeout=-1, context=0x7a3310, priority=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
        poll_func = 0x7ffff324ef40 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7a3310, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7fffdc0010e0
        max_priority = 2147483647
        nfds = 1
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7a3310, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
        some_ready = -603975456
#4  0x00007ffff324249a in g_main_loop_run (loop=0x7fffdc0010c0) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007fffe2ced98b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#6  0x00007ffff32639e5 in g_thread_proxy (data=0x79e9e0) at /build/buildd/glib2.0-2.32.3/./glib/gthread.c:801
        thread = 0x79e9e0
#7  0x00007ffff4473e9a in start_thread (arg=0x7fffe2ce8700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fffe2ce8700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {1, -5617177424494641100, 140737488345568, 140736998574528, 0, 3, 5617118450247221300, 5617165671267254324}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007ffff5a61ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 2 (Thread 0x7fffebbd4700 (LWP 32382)):
#0  0x00007ffff5a56313 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007fffeef05862 in _xcb_conn_wait (c=0x628e20, cond=<optimized out>, vector=0x0, count=0x0) at ../../src/xcb_conn.c:400
        ret = <optimized out>
        fd = {fd = 6, events = 1, revents = 0}
#2  0x00007fffeef0701f in xcb_wait_for_event (c=0x628e20) at ../../src/xcb_in.c:522
        ret = 0x0
#3  0x00007fffee42e357 in QXcbEventReader::run (this=0x6367f0) at qxcbconnection.cpp:983
        event = 0x0
#4  0x00007ffff62f0569 in QThreadPrivate::start (arg=0x6367f0) at thread/qthread_unix.cpp:345
        __clframe = {__cancel_routine = 0x7ffff62f05ee <QThreadPrivate::finish(void*)>, __cancel_arg = 0x6367f0, __do_it = 1, __cancel_type = 0}
        thr = 0x6367f0
        data = 0x636b50
        objectName = {static null = {<No data fields>}, d = 0x7ffff69f1420}
#5  0x00007ffff4473e9a in start_thread (arg=0x7fffebbd4700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fffebbd4700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {1, -5617177424494641100, 140737488346368, 140737148438976, 0, 3, 5617134008766251060, 5617165671267254324}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007ffff5a61ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#7  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 1 (Thread 0x7ffff7fc4780 (LWP 32310)):
#0  0x00007ffff5a56313 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007ffff3242036 in g_main_context_poll (n_fds=3, fds=0x8be380, timeout=5, context=0x625500, priority=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
        poll_func = 0x7ffff324ef40 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x625500, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
        timeout = 5
        some_ready = <optimized out>
        fds = 0x8be380
        max_priority = 2147483647
        nfds = 3
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x625500, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
        some_ready = 9167744
#4  0x00007ffff3242164 in g_main_context_iteration (context=0x625500, may_block=1) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
        retval = <optimized out>
#5  0x00007ffff65a2113 in QEventDispatcherGlib::processEvents (this=0x61d250, flags=...) at kernel/qeventdispatcher_glib.cpp:426
        d = 0x61d510
        canWait = true
        savedFlags = {i = 0}
        result = false
#6  0x00007fffee48316a in QPAEventDispatcherGlib::processEvents (this=0x61d250, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:123
No locals.
#7  0x00007ffff652d0d4 in QEventLoop::processEvents (this=0x7fffffffe3d0, flags=...) at kernel/qeventloop.cpp:136
        d = 0x8efad0
#8  0x00007ffff652d3ad in QEventLoop::exec (this=0x7fffffffe3d0, flags=...) at kernel/qeventloop.cpp:212
        locker = {val = 6392560}
        __PRETTY_FUNCTION__ = "int QEventLoop::exec(QEventLoop::ProcessEventsFlags)"
        ref = {d = 0x8efad0, locker = @0x7fffffffe330, exceptionCaught = true}
        app = 0x7fffffffe470
        d = 0x8efad0
#9  0x00007ffff6530bcc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1120
        threadData = 0x619120
        __PRETTY_FUNCTION__ = "static int QCoreApplication::exec()"
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff69ee3b0, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4320, data = 0x7ffff66bc280, static_metacall = 0x7ffff65734c4 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x8efad0}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4e80, data = 0x7ffff6708640, static_metacall = 0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff69eac60, stringdata = 0x7ffff6a05700, data = 0x7ffff670e060, static_metacall = 0x7ffff65faf38 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = 0
#10 0x00007ffff6b0cc02 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1220
No locals.
#11 0x000000000040445c in main (argc=1, argv=0x7fffffffe598) at ../animatedImage/main.cpp:20
        app = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7ffff718f310, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4320, data = 0x7ffff66bc280, static_metacall = 0x7ffff65734c4 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x619300}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4e80, data = 0x7ffff6708640, static_metacall = 0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff69eac60, stringdata = 0x7ffff6a05760, data = 0x7ffff670e180, static_metacall = 0x7ffff65fb090 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7fffffffe470}, static staticMetaObject = {d = {superdata = 0x7ffff69ee440, stringdata = 0x7ffff719bde0, data = 0x7ffff6e70920, static_metacall = 0x7ffff6b125e0 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        view = {<QQuickWindow> = {<QWindow> = {<QObject> = {_vptr.QObject = 0x7ffff7db4930, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4320, data = 0x7ffff66bc280, static_metacall = 0x7ffff65734c4 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x810c10}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff69f4e80, data = 0x7ffff6708640, static_metacall = 0, relatedMetaObjects = 0x0, extradata = 0x0}}}, <QSurface> = {_vptr.QSurface = 0x7ffff7db4a58, m_type = QSurface::Window, m_reserved = 0x0}, static staticMetaObject = {d = {superdata = 0x7ffff69eac60, stringdata = 0x7ffff719c420, data = 0x7ffff6e71740, static_metacall = 0x7ffff6b1c13e <QWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff718f460, stringdata = 0x7ffff7dbec60, data = 0x7ffff7aadb60, static_metacall = 0x7ffff79140a8 <QQuickWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff7da1ce0, stringdata = 0x7ffff7dd0500, data = 0x7ffff7ad89a0, static_metacall = 0x7ffff7a79c6c <QQuickView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
warning: RTTI symbol not found for class 'QSGRenderer::renderScene()::B'