(gdb) bt full
#0  0xb6101647 in WebCore::QNetworkReplyHandler::forwardData () from /usr/lib/libQt5WebKit.so.5
No locals.
#1  0xb60fe589 in flush () from /usr/lib/libQt5WebKit.so.5
No locals.
#2  0xb6100a14 in WebCore::QNetworkReplyWrapper::didReceiveReadyRead () from /usr/lib/libQt5WebKit.so.5
No locals.
#3  0xb440e050 in QMetaObject::activate (sender=sender@entry=0x9866e10, signalOffset=3, local_signal_index=<optimized out>, 
    local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3716
        receiverInSameThread = <optimized out>
        sw = {receiver = 0x83a2710, previousSender = 0x0, currentSender = {sender = 0x9866e10, signal = 3, ref = 0}, switched = true}
        callFunction = 0xb6101450 <WebCore::QNetworkReplyWrapper::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>
        receiver = 0x83a2710
        method_relative = <optimized out>
        c = <optimized out>
        locker = <optimized out>
        connectionLists = {connectionLists = 0x839f260}
        list = 0x95d7af0
        signal_index = <optimized out>
        empty_argv = {0x0}
        currentThreadId = <optimized out>
#4  0xb440e66b in QMetaObject::activate (sender=sender@entry=0x9866e10, m=m@entry=0xb461b698 <QIODevice::staticMetaObject>, 
    local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3582
No locals.
#5  0xb448f6a5 in QIODevice::readyRead (this=this@entry=0x9866e10) at .moc/moc_qiodevice.cpp:154
No locals.
#6  0xb4c0ff2b in QNetworkReplyHttpImplPrivate::replyDownloadData (this=0x8a52598, d=...) at access/qnetworkreplyhttpimpl.cpp:1044
        bytesWritten = <optimized out>
        totalSize = {d = {data = {c = 0 '\000', uc = 0 '\000', s = -20480, sc = 0 '\000', us = 45056, i = 241664, u = 241664, l = 241664, 
              ul = 241664, b = false, d = 1.19397880236579e-318, f = 3.38643392e-40, real = 1.19397880236579e-318, ll = 241664, ull = 241664, 
              o = 0x3b000, ptr = 0x3b000, shared = 0x3b000}, type = 4, is_shared = 0, is_null = 0}}
        pendingDownloadDataCopy = {buffers = {<QListSpecialMethods<QByteArray>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {
                      _q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0xb44d8b20 <QListData::shared_null>}, 
              d = 0xb44d8b20 <QListData::shared_null>}}, bufferCompleteSize = 0, firstPos = 0}
#7  0xb4c98c0e in QNetworkReplyHttpImpl::qt_static_metacall (_o=0x9866e10, _c=QMetaObject::InvokeMetaMethod, _id=15, _a=0xa6a0c398)
    at .moc/moc_qnetworkreplyhttpimpl_p.cpp:223
        _t = 0x9866e10
#8  0xb440b6cb in QMetaCallEvent::placeMetaCall (this=0xa6a09178, object=0x9866e10) at kernel/qobject.cpp:485
        object = 0x9866e10
        this = 0xa6a09178
#9  0xb440ee45 in QObject::event (this=0x9866e10, e=0xa6a09178) at kernel/qobject.cpp:1245
        mce = 0xa6a09178
        sw = {receiver = 0x9866e10, previousSender = 0x0, currentSender = {sender = 0x8f69540, signal = 10, ref = 1}, switched = true}
#10 0xb506a4e4 in QApplicationPrivate::notify_helper (this=this@entry=0x8101668, receiver=receiver@entry=0x9866e10, e=e@entry=0xa6a09178)
    at kernel/qapplication.cpp:3722
        consumed = <optimized out>
#11 0xb506f921 in QApplication::notify (this=0xbfffef9c, receiver=0x9866e10, e=0xa6a09178) at kernel/qapplication.cpp:3505
        w = 0x9866e10
        extra = <optimized out>
        isProxyWidget = <optimized out>
        res = <optimized out>
#12 0xb43d8b5a in QCoreApplication::notifyInternal (this=0xbfffef9c, receiver=receiver@entry=0x9866e10, event=event@entry=0xa6a09178)
    at kernel/qcoreapplication.cpp:932
        threadData = 0x8101738
        loopLevelCounter = {threadData = 0x8101738}
        result = false
        cbdata = {0x9866e10, 0xa6a09178, 0xbfffec00}
        d = <optimized out>
#13 0xb43dabfb in sendEvent (event=0xa6a09178, receiver=0x9866e10) at kernel/qcoreapplication.h:228
No locals.
#14 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x8101738)
    at kernel/qcoreapplication.cpp:1536
        e = 0xa6a09178
        pe = <optimized out>
        r = 0x9866e10
        unlocker = {m = <synthetic pointer>}
        event_deleter = {d = 0xa6a09178}
        locker = {val = 135272276}
        startOffset = 0
        i = @0x810174c: 17
        cleanup = {receiver = 0x0, event_type = 0, data = 0x8101738, exceptionCaught = true}
#15 0xb43db383 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1394
        data = <optimized out>
#16 0xb4438ffe in postEventSourceDispatch (s=0x81053d8) at kernel/qeventdispatcher_glib.cpp:271
        source = 0x81053d8
#17 0xb3940203 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#18 0xb3940488 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#19 0xb3940548 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#20 0xb44383ad in QEventDispatcherGlib::processEvents (this=0x8120368, flags=...) at kernel/qeventdispatcher_glib.cpp:418
        d = 0x811d368
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#21 0xb16cf0e6 in ?? () from /usr/lib/qt5/plugins/platforms/libqxcb.so
No symbol table info available.
#22 0xb43d63d6 in QEventLoop::processEvents (this=this@entry=0xbfffeed0, flags=flags@entry=...) at kernel/qeventloop.cpp:128
        d = <optimized out>
#23 0xb43d6814 in QEventLoop::exec (this=this@entry=0xbfffeed0, flags=flags@entry=...) at kernel/qeventloop.cpp:204
        locker = {val = 135272384}
        ref = {d = 0x8232bb8, locker = @0xbfffee70, exceptionCaught = true}
        d = 0x8232bb8
#24 0xb43de7ad in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1185
---Type <return> to continue, or q <return> to quit---
        threadData = 0x8101738
        eventLoop = {<QObject> = {_vptr.QObject = 0xb461c188 <vtable for QEventLoop+8>, static staticMetaObject = {d = {superdata = 0x0, 
                stringdata = 0xb4570280 <qt_meta_stringdata_QObject>, data = 0xb4570160 <qt_meta_data_QObject>, 
                static_metacall = 0xb4417260 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, 
                extradata = 0x0}}, d_ptr = {d = 0x8232bb8}, static staticQtMetaObject = {d = {superdata = 0x0, 
                stringdata = 0xb457c6a0 <qt_meta_stringdata_Qt>, data = 0xb4579e20 <qt_meta_data_Qt>, static_metacall = 0x0, 
                relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0xb461a6d8 <QObject::staticMetaObject>, 
              stringdata = 0xb458c820 <qt_meta_stringdata_QEventLoop>, data = 0xb458c7c0 <qt_meta_data_QEventLoop>, 
              static_metacall = 0xb4492ac0 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, 
              extradata = 0x0}}}
        returnCode = <optimized out>
#25 0xb46dd514 in QGuiApplication::exec() () from /usr/lib/sse2/libQt5Gui.so.5
No symbol table info available.
#26 0xb50666e4 in QApplication::exec () at kernel/qapplication.cpp:2956
No locals.
#27 0x080620fb in main ()
No symbol table info available.