(gdb) bt full
#0  0x00007fffee8321c9 in raise () from /usr/lib/libc.so.6
No symbol table info available.
#1  0x00007fffee8335c8 in abort () from /usr/lib/libc.so.6
No symbol table info available.
#2  0x0000000000a14031 in Ms::Segment::add (this=0x63243f0, el=0x65a75f0) at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/libmscore/segment.cpp:461
        track = 0
        __PRETTY_FUNCTION__ = "virtual void Ms::Segment::add(Ms::Element*)"
#3  0x00000000007a1211 in OveToMScore::convertWedges (this=this@entry=0x7fffffffae40, measure=measure@entry=0x62038c0, part=part@entry=0, staff=<optimized out>, 
    track=track@entry=0) at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/importove.cpp:2406
        hp = 0x65a75f0
        seg = 0x63243f0
        wedgePtr = <optimized out>
        absTick = <optimized out>
        absTick2 = 40288
        i = 0
        measureData = <optimized out>
        wedges = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x65958c0}, d = 0x65958c0}}
#4  0x00000000007a1362 in OveToMScore::convertLines (this=this@entry=0x7fffffffae40, measure=measure@entry=0x62038c0)
    at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/importove.cpp:1191
        trackIndex = 0
        j = <optimized out>
        partStaffCount = 2
        i = 0
        staffCount = 0
        measureCount = 88
#5  0x00000000007a5128 in OveToMScore::convertMeasures (this=this@entry=0x7fffffffae40)
    at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/importove.cpp:1145
        measure = 0x62038c0
        mb = 0x62038c0
#6  0x00000000007a521f in OveToMScore::convert (this=this@entry=0x7fffffffae40, ove=ove@entry=0x7fffffffae60, score=score@entry=0x5bad850)
    at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/importove.cpp:258
        staffCount = <optimized out>
#7  0x00000000007a547b in importOve (score=0x5bad850, name=...) at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/importove.cpp:2438
        otm = {ove_ = 0x7fffffffae60, score_ = 0x5bad850, mtt_ = 0x5ce87d0, pedal_ = 0x0}
        oveLoader = <optimized out>
        oveSong = {version4_ = true, quarter_ = 480, showPageMargin_ = false, showTransposeTrack = false, showLineBreak_ = false, showRuler_ = true, showColor_ = false, 
          playRepeat_ = true, playStyle_ = OVE::OveSong::Record, titles_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, 
                  array = {0x0}}, d = 0x5f75240}, d = 0x5f75240}}, annotates_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, 
                  end = 0, array = {0x0}}, d = 0x61119e0}, d = 0x61119e0}}, writers_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, 
                  end = 0, array = {0x0}}, d = 0x5f75040}, d = 0x5f75040}}, copyrights_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, 
                  begin = 0, end = 0, array = {0x0}}, d = 0x5f75160}, d = 0x5f75160}}, headers_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, 
                  begin = 0, end = 0, array = {0x0}}, d = 0x7ffff6ec72b0 <QListData::shared_null>}, d = 0x7ffff6ec72b0 <QListData::shared_null>}}, footers_ = {{p = {
                static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x7ffff6ec72b0 <QListData::shared_null>}, 
              d = 0x7ffff6ec72b0 <QListData::shared_null>}}, tracks_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, 
                  array = {0x0}}, d = 0x55af160}, d = 0x55af160}}, pages_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, 
                  array = {0x0}}, d = 0x5bae550}, d = 0x5bae550}}, lines_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, 
                  array = {0x0}}, d = 0x5e2a830}, d = 0x5e2a830}}, measures_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, 
                  end = 0, array = {0x0}}, d = 0x60fd160}, d = 0x60fd160}}, measureDatas_ = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, 
                  begin = 0, end = 0, array = {0x0}}, d = 0x610d070}, d = 0x610d070}}, trackBarCount_ = 88, partStaffCounts_ = {{p = {static shared_null = {ref = {
                    atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x61fcb30}, d = 0x61fcb30}}, codec_ = 0x12f7fb0}
        buffer = {d = 0x5dd1e00}
---Type <return> to continue, or q <return> to quit---
        oveFile = {<QFileDevice> = {<QIODevice> = {<QObject> = {_vptr.QObject = 0x7ffff723aa10 <vtable for QFile+16>, static staticMetaObject = {d = {superdata = 0x0, 
                    stringdata = 0x7ffff6f5b0c0 <qt_meta_stringdata_QObject>, data = 0x7ffff6f5afa0 <qt_meta_data_QObject>, 
                    static_metacall = 0x7ffff6e5f770 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, 
                d_ptr = {d = 0x5d9df90}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6fa52c0 <qt_meta_stringdata_Qt>, 
                    data = 0x7ffff6fa2ca0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {
                  superdata = 0x7ffff7238e80 <QObject::staticMetaObject>, stringdata = 0x7ffff6fb6700 <qt_meta_stringdata_QIODevice>, 
                  data = 0x7ffff6fb6640 <qt_meta_data_QIODevice>, 
                  static_metacall = 0x7ffff6ebcb80 <QIODevice::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, 
            static staticMetaObject = {d = {superdata = 0x7ffff723ae00 <QIODevice::staticMetaObject>, stringdata = 0x7ffff6fb6600 <qt_meta_stringdata_QFileDevice>, 
                data = 0x7ffff6fb65c0 <qt_meta_data_QFileDevice>, 
                static_metacall = 0x7ffff6ebca40 <QFileDevice::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, 
          static staticMetaObject = {d = {superdata = 0x7ffff723aca0 <QFileDevice::staticMetaObject>, stringdata = 0x7ffff6fb6580 <qt_meta_stringdata_QFile>, 
              data = 0x7ffff6fb6540 <qt_meta_data_QFile>, static_metacall = 0x7ffff6ebc9b0 <QFile::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, 
              relatedMetaObjects = 0x0, extradata = 0x0}}}
        result = <optimized out>
#8  0x00000000008432e8 in Ms::readScore (score=score@entry=0x5bad850, name=..., ignoreVersionError=ignoreVersionError@entry=false)
    at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/file.cpp:1786
        rv = <optimized out>
        imports = {{extension = 0xf2581b "xml", importF = 0x8d4a50 <Ms::importMusicXml(Ms::Score*, QString const&)>}, {extension = 0xeb7df4 "mxl", 
            importF = 0x8d4dc0 <Ms::importCompressedMusicXml(Ms::Score*, QString const&)>}, {extension = 0xe9fc1b "mid", importF = 0x6c8d30
     <Ms::importMidi(Ms::Score*, QString const&)>}, {extension = 0xeb2710 "midi", importF = 0x6c8d30 <Ms::importMidi(Ms::Score*, QString const&)>}, {
            extension = 0xef988d "kar", importF = 0x6c8d30 <Ms::importMidi(Ms::Score*, QString const&)>}, {extension = 0xe90765 "md", importF = 0x73bc80
     <Ms::importMuseData(Ms::Score*, QString const&)>}, {
extension = 0xef9891 "mgu", importF = 0x85f330 <Ms::importBB(Ms::Score*, QString const&)>}, {
            extension = 0xef9895 "sgu", importF = 0x85f330 <Ms::importBB(Ms::Score*, QString const&)>}, {extension = 0xef9899 "cap", importF = 0x772f20
     <Ms::importCapella(Ms::Score*, QString const&)>}, {extension = 0xef989d "capx", importF = 0x77e0b0 <Ms::importCapXml(Ms::Score*, QString const&)>}, {
            extension = 0xe8efd1 "ove", importF = 0x7a52a0 <importOve(Ms::Score*, QString const&)>}, {extension = 0xef98a2 "scw", 
            importF = 0x7a52a0 <importOve(Ms::Score*, QString const&)>}, {extension = 0xef98a6 "bww", importF = 0x67be30 <Ms::importBww(Ms::Score*, QString const&)>}, {
            extension = 0xef98aa "gtp", importF = 0x7cf370 <Ms::importGTP(Ms::Score*, QString const&)>}, {extension = 0xef98ae "gp3", 
            importF = 0x7cf370 <Ms::importGTP(Ms::Score*, QString const&)>}, {extension = 0xef98b2 "gp4", importF = 0x7cf370 <Ms::importGTP(Ms::Score*, QString const&)>}, {
            extension = 0xef98b6 "gp5", importF = 0x7cf370 <Ms::importGTP(Ms::Score*, QString const&)>}}
        i = <optimized out>
        cs = {static null = {<No data fields>}, d = 0x5d97450}
        csl = {static null = {<No data fields>}, d = 0x5d97450}
        __PRETTY_FUNCTION__ = "Ms::Score::FileError Ms::readScore(Ms::Score*, QString, bool)"
        staffIdx = <optimized out>
#9  0x000000000084337b in Ms::MuseScore::readScore (this=this@entry=0x53ae040, name=...) at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/file.cpp:309
        score = 0x5bad850
        rv = <optimized out>
#10 0x00000000008434ae in Ms::MuseScore::openScore (this=0x53ae040, fn=...) at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/file.cpp:290
        score = <optimized out>
#11 0x0000000000839f1f in Ms::MuseScore::loadFiles (this=this@entry=0x53ae040) at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/file.cpp:279
        files = {<QList<QString>> = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x5d8f100}, 
              d = 0x5d8f100}}, <No data fields>}
        list = {<QList<QString>> = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x5d37280}, 
              d = 0x5d37280}}, <No data fields>}
        it = {i = 0x5d37290}
#12 0x00000000006e2351 in Ms::MuseScore::cmd (this=this@entry=0x53ae040, a=a@entry=0x540eda0, cmd=...)
    at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/musescore.cpp:3911
        __PRETTY_FUNCTION__ = "void Ms::MuseScore::cmd(QAction*, const QString&)"
#13 0x00000000006e38b8 in Ms::MuseScore::cmd (this=0x53ae040, a=0x540eda0) at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/musescore.cpp:3813
        cmdn = {static null = {<No data fields>}, d = 0x540f650}
---Type <return> to continue, or q <return> to quit---
        __PRETTY_FUNCTION__ = "virtual void Ms::MuseScore::cmd(QAction*)"
        sc = 0x12be2c8 <Ms::Shortcut::sc+72>
#14 0x000000000061c8a6 in Ms::MuseScore::qt_static_metacall (_o=0x53ae040, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>)
    at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/build.release/mscore/moc_musescore.cpp:813
        _t = 0x53ae040
#15 0x00007ffff6e58376 in QMetaObject::activate (sender=0x53e2130, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, 
    argv=argv@entry=0x7fffffffc4f0) at kernel/qobject.cpp:3479
        receiverInSameThread = <optimized out>
        sw = {receiver = 0x53ae040, previousSender = 0x0, currentSender = {sender = 0x53e2130, signal = 3, ref = 1}, switched = true}
        callFunction = 0x61c2c0 <Ms::MuseScore::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>
        receiver = 0x53ae040
        method_relative = 48
        c = 0x5460f10
        last = 0x5460f10
        locker = {val = 140737339720056}
        connectionLists = {connectionLists = 0x5460f60}
        list = 0x5460fd8
        signal_index = 3
        empty_argv = {0x0}
        currentThreadId = 0x7ffff7fc2740
        __PRETTY_FUNCTION__ = "static void QMetaObject::activate(QObject*, int, int, void**)"
#16 0x00007ffff6e588a7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7ffff401be40 <QActionGroup::staticMetaObject>, 
    local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffffffc4f0) at kernel/qobject.cpp:3354
No locals.
#17 0x00007ffff39710ff in QActionGroup::triggered (this=<optimized out>, _t1=0x540eda0) at .moc/release-shared/moc_qactiongroup.cpp:231
        _a = {0x0, 0x7fffffffc4e8}
#18 0x00007ffff39712d8 in QActionGroupPrivate::_q_actionTriggered (this=<optimized out>) at kernel/qactiongroup.cpp:93
No locals.
#19 0x00007ffff3971c29 in QActionGroup::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>)
    at .moc/release-shared/moc_qactiongroup.cpp:115
        _t = <optimized out>
#20 0x00007ffff6e58376 in QMetaObject::activate (sender=sender@entry=0x540eda0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, 
    argv=argv@entry=0x7fffffffc690) at kernel/qobject.cpp:3479
        receiverInSameThread = <optimized out>
        sw = {receiver = 0x53e2130, previousSender = 0x0, currentSender = {sender = 0x540eda0, signal = 4, ref = 1}, switched = true}
        callFunction = 0x7ffff3971b60 <QActionGroup::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>
        receiver = 0x53e2130
        method_relative = 6
        c = 0x540f7c0
        last = 0x558dee0
        locker = {val = 140737339720064}
        connectionLists = {connectionLists = 0x540f690}
        list = 0x540f968
        signal_index = 4
        empty_argv = {0x0}
        currentThreadId = 0x7ffff7fc2740
        __PRETTY_FUNCTION__ = "static void QMetaObject::activate(QObject*, int, int, void**)"
#21 0x00007ffff6e588a7 in QMetaObject::activate (sender=sender@entry=0x540eda0, m=m@entry=0x7ffff401bd20 <QAction::staticMetaObject>, 
    local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffffffc690) at kernel/qobject.cpp:3354
No locals.
#22 0x00007ffff396deb2 in QAction::triggered (this=this@entry=0x540eda0, _t1=false) at .moc/release-shared/moc_qaction.cpp:356
---Type <return> to continue, or q <return> to quit---
        _a = {0x0, 0x7fffffffc68c}
#23 0x00007ffff39701c8 in QAction::activate (this=0x540eda0, event=<optimized out>) at kernel/qaction.cpp:1175
        guard = {wp = {d = 0x59b3ec0, value = <optimized out>}}
#24 0x00007ffff3ada83a in QMenuPrivate::activateCausedStack (this=this@entry=0x558d2e0, causedStack=..., action=action@entry=0x540eda0, 
    action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:977
        guard = {block = @0x558d4b9, reset = false}
#25 0x00007ffff3adf8d6 in QMenuPrivate::activateAction (this=this@entry=0x558d2e0, action=action@entry=0x540eda0, action_e=action_e@entry=QAction::Trigger, 
    self=self@entry=true) at widgets/qmenu.cpp:1054
        inWhatsThisMode = <optimized out>
        causedStack = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x5b4daa0}, d = 0x5b4daa0}}
#26 0x00007ffff3ae3c6a in QMenu::mouseReleaseEvent (this=<optimized out>, e=0x7fffffffcce0) at widgets/qmenu.cpp:2359
        action = <optimized out>
#27 0x00007ffff39ae899 in QWidget::event (this=this@entry=0x558c770, event=event@entry=0x7fffffffcce0) at kernel/qwidget.cpp:7877
No locals.
#28 0x00007ffff3ae438b in QMenu::event (this=0x558c770, e=0x7fffffffcce0) at widgets/qmenu.cpp:2472
No locals.
#29 0x00007ffff3974e5c in QApplicationPrivate::notify_helper (this=this@entry=0x12f6a90, receiver=receiver@entry=0x558c770, e=e@entry=0x7fffffffcce0)
    at kernel/qapplication.cpp:3455
        consumed = <optimized out>
#30 0x00007ffff397a709 in QApplication::notify (this=<optimized out>, receiver=0x558c770, e=0x7fffffffcce0) at kernel/qapplication.cpp:2991
        me = {<QInputEvent> = {<QEvent> = {_vptr.QEvent = 0x7ffff6c1dd90 <vtable for QMouseEvent+16>, static staticMetaObject = {d = {superdata = 0x0, 
                  stringdata = 0x7ffff6fb8fc0 <qt_meta_stringdata_QEvent>, data = 0x7ffff6fb8a40 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, 
                  extradata = 0x0}}, d = 0x0, t = 3, posted = 0, spont = 1, m_accept = 1, reserved = 8191}, modState = {i = 0}, ts = 93021298}, l = {xp = 49, yp = 39}, 
          w = {xp = 49, yp = 39}, s = {xp = 515, yp = 286}, b = Qt::LeftButton, mouseState = {i = 0}, caps = 0, velocity = {xp = 0, yp = 0}}
        w = 0x558c770
        mouse = 0x7fffffffcce0
        eventAccepted = <optimized out>
        relpos = {xp = 49, yp = 39}
        pw = {wp = {d = 0x558d7a0, value = 0x558c770}}
        __PRETTY_FUNCTION__ = "virtual bool QApplication::notify(QObject*, QEvent*)"
        res = false
#31 0x00007ffff6e327ad in QCoreApplication::notifyInternal (this=0x12f69a0, receiver=receiver@entry=0x558c770, event=event@entry=0x7fffffffcce0)
    at kernel/qcoreapplication.cpp:871
        threadData = 0x12f6640
        loopLevelCounter = {threadData = 0x12f6640}
        result = false
        cbdata = {0x558c770, 0x7fffffffcce0, 0x7fffffffcaff}
        d = <optimized out>
#32 0x00007ffff3978991 in sendSpontaneousEvent (event=0x7fffffffcce0, receiver=0x558c770) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:235
No locals.
#33 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x558c770, event=event@entry=0x7fffffffcce0, alienWidget=alienWidget@entry=0x0, nativeWidget=0x558c770, 
    buttonDown=buttonDown@entry=0x7ffff40470a0 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:2485
        alienGuard = {wp = {d = 0x0, value = 0x0}}
        receiverGuard = {wp = {d = 0x558d7a0, value = 0x558c770}}
        nativeGuard = {wp = {d = 0x558d7a0, value = 0x558c770}}
        activePopupWidget = {wp = {d = 0x558d7a0, value = 0x558c770}}
        widgetUnderMouse = <optimized out>
        wasLeaveAfterRelease = false
        result = <optimized out>
#34 0x00007ffff39ca28d in QWidgetWindow::handleMouseEvent (this=this@entry=0x5b55ca0, event=event@entry=0x7fffffffd120) at kernel/qwidgetwindow.cpp:377
        receiver = <optimized out>
---Type <return> to continue, or q <return> to quit---
        widgetPos = {xp = 49, yp = 39}
        alien = 0x0
        e = {<QInputEvent> = {<QEvent> = {_vptr.QEvent = 0x7ffff6c1dd90 <vtable for QMouseEvent+16>, static staticMetaObject = {d = {superdata = 0x0, 
                  stringdata = 0x7ffff6fb8fc0 <qt_meta_stringdata_QEvent>, data = 0x7ffff6fb8a40 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, 
                  extradata = 0x0}}, d = 0x0, t = 3, posted = 0, spont = 1, m_accept = 1, reserved = 38}, modState = {i = 0}, ts = 93021298}, l = {xp = 49, yp = 39}, w = {
            xp = 49, yp = 39}, s = {xp = 515, yp = 286}, b = Qt::LeftButton, mouseState = {i = 0}, caps = 0, velocity = {xp = 0, yp = 0}}
        popupChild = 0x0
        activePopupWidget = 0x558c770
        popup = 0x558c770
        mapped = {xp = 49, yp = 39}
        releaseAfter = <optimized out>
        oldOpenPopupCount = 2
        widget = <optimized out>
        mapped = {xp = 0, yp = 0}
        receiver = <optimized out>
        translated = {<QInputEvent> = {<QEvent> = {_vptr.QEvent = 0x7ffff6c1dd90 <vtable for QMouseEvent+16>, static staticMetaObject = {d = {superdata = 0x0, 
                  stringdata = 0x7ffff6fb8fc0 <qt_meta_stringdata_QEvent>, data = 0x7ffff6fb8a40 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, 
                  extradata = 0x0}}, d = 0x0, t = 3, posted = 0, spont = 1, m_accept = 1, reserved = 38}, modState = {i = 0}, ts = 93021298}, l = {xp = 49, yp = 39}, w = {
            xp = 49, yp = 39}, s = {xp = 515, yp = 286}, b = Qt::LeftButton, mouseState = {i = 0}, caps = 0, velocity = {xp = 0, yp = 0}}
#35 0x00007ffff39cc1f3 in QWidgetWindow::event (this=0x5b55ca0, event=0x7fffffffd120) at kernel/qwidgetwindow.cpp:158
No locals.
#36 0x00007ffff3974e5c in QApplicationPrivate::notify_helper (this=this@entry=0x12f6a90, receiver=receiver@entry=0x5b55ca0, e=e@entry=0x7fffffffd120)
    at kernel/qapplication.cpp:3455
        consumed = <optimized out>
#37 0x00007ffff3979e96 in QApplication::notify (this=0x12f69a0, receiver=0x5b55ca0, e=0x7fffffffd120) at kernel/qapplication.cpp:3210
        w = 0x5b55ca0
        extra = <optimized out>
        isProxyWidget = <optimized out>
        __PRETTY_FUNCTION__ = "virtual bool QApplication::notify(QObject*, QEvent*)"
        res = <optimized out>
#38 0x00007ffff6e327ad in QCoreApplication::notifyInternal (this=0x12f69a0, receiver=receiver@entry=0x5b55ca0, event=event@entry=0x7fffffffd120)
    at kernel/qcoreapplication.cpp:871
        threadData = 0x12f6640
        loopLevelCounter = {threadData = 0x12f6640}
        result = false
        cbdata = {0x5b55ca0, 0x7fffffffd120, 0x7fffffffcfcf}
        d = <optimized out>
#39 0x00007ffff66e6c87 in sendSpontaneousEvent (event=0x7fffffffd120, receiver=0x5b55ca0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:235
No locals.
#40 QGuiApplicationPrivate::processMouseEvent (e=0x5bbec50) at kernel/qguiapplication.cpp:1439
        type = QEvent::MouseButtonRelease
        stateChange = <optimized out>
        window = 0x5b55ca0
        globalPoint = {xp = 515, yp = 286}
        button = Qt::LeftButton
        doubleClick = false
        frameStrut = false
        localPoint = {xp = 49, yp = 39}
        ev = {<QInputEvent> = {<QEvent> = {_vptr.QEvent = 0x7ffff6c1dd90 <vtable for QMouseEvent+16>, static staticMetaObject = {d = {superdata = 0x0, 
                  stringdata = 0x7ffff6fb8fc0 <qt_meta_stringdata_QEvent>, data = 0x7ffff6fb8a40 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, 
                  extradata = 0x0}}, d = 0x0, t = 3, posted = 0, spont = 1, m_accept = 1, reserved = 8191}, modState = {i = 0}, ts = 93021298}, l = {xp = 49, yp = 39}, 
---Type <return> to continue, or q <return> to quit---
          w = {xp = 49, yp = 39}, s = {xp = 515, yp = 286}, b = Qt::LeftButton, mouseState = {i = 0}, caps = 0, velocity = {xp = 0, yp = 0}}
#41 0x00007ffff66e8775 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x5bbec50) at kernel/qguiapplication.cpp:1262
        __PRETTY_FUNCTION__ = "static void QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)"
#42 0x00007ffff66d2f58 in QWindowSystemInterface::sendWindowSystemEventsImplementation (flags=...) at kernel/qwindowsysteminterface.cpp:581
        event = 0x5bbec50
        nevents = 1
#43 0x00007ffff66d2fa4 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:561
No locals.
#44 0x00007fffe42c8cc0 in userEventSourceDispatch (source=source@entry=0x1301670) at eventdispatchers/qeventdispatcher_glib.cpp:78
        userEventSource = 0x1301670
        dispatcher = <optimized out>
#45 0x00007fffed471f56 in g_main_dispatch (context=0x1300ef0) at gmain.c:3058
        dispatch = 0x7fffe42c8cb0 <userEventSourceDispatch(GSource*, GSourceFunc, gpointer)>
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = 0x0
        cb_data = 0x0
        need_destroy = <optimized out>
        current_source_link = {data = 0x1301670, next = 0x0}
        source = 0x1301670
        current = 0x12db3b0
        i = 1
#46 g_main_context_dispatch (context=context@entry=0x1300ef0) at gmain.c:3634
No locals.
#47 0x00007fffed4722a8 in g_main_context_iterate (context=context@entry=0x1300ef0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3705
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 6
        fds = 0x580e350
#48 0x00007fffed47234c in g_main_context_iteration (context=0x1300ef0, may_block=1) at gmain.c:3766
        retval = <optimized out>
#49 0x00007ffff6e7949c in QEventDispatcherGlib::processEvents (this=0x12f9e30, flags=...) at kernel/qeventdispatcher_glib.cpp:426
        d = 0x1300e40
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#50 0x00007ffff6e314fb in QEventLoop::exec (this=this@entry=0x7fffffffd4a0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
        locker = {val = 19883808}
        __PRETTY_FUNCTION__ = "int QEventLoop::exec(QEventLoop::ProcessEventsFlags)"
        ref = {d = 0x59c6d20, locker = @0x7fffffffd420, exceptionCaught = true}
        d = 0x59c6d20
#51 0x00007ffff6e37a71 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1124
        threadData = 0x12f6640
        __PRETTY_FUNCTION__ = "static int QCoreApplication::exec()"
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff723c430 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, 
                stringdata = 0x7ffff6f5b0c0 <qt_meta_stringdata_QObject>, data = 0x7ffff6f5afa0 <qt_meta_data_QObject>, 
                static_metacall = 0x7ffff6e5f770 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, 
            d_ptr = {d = 0x59c6d20}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6fa52c0 <qt_meta_stringdata_Qt>, 
---Type <return> to continue, or q <return> to quit---
                data = 0x7ffff6fa2ca0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {
              superdata = 0x7ffff7238e80 <QObject::staticMetaObject>, stringdata = 0x7ffff6fb8620 <qt_meta_stringdata_QEventLoop>, 
              data = 0x7ffff6fb85c0 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff6ebf000 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, 
              relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#52 0x00007ffff66dfd9c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1196
No locals.
#53 0x00007ffff3973915 in QApplication::exec () at kernel/qapplication.cpp:2689
No locals.
#54 0x0000000000611676 in main (argc=1, av=<optimized out>) at /home/yuyichao/linux/pkg/all/musescore-git/src/MuseScore/mscore/musescore.cpp:4857
        wi = {<QObject> = {_vptr.QObject = 0x7ffff401cc90 <vtable for QWidget+16>, static staticMetaObject = {d = {superdata = 0x0, 
                stringdata = 0x7ffff6f5b0c0 <qt_meta_stringdata_QObject>, data = 0x7ffff6f5afa0 <qt_meta_data_QObject>, 
                static_metacall = 0x7ffff6e5f770 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, 
            d_ptr = {d = 0x13947b0}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6fa52c0 <qt_meta_stringdata_Qt>, 
                data = 0x7ffff6fa2ca0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, <QPaintDevice> = {
            _vptr.QPaintDevice = 0x7ffff401ce40 <vtable for QWidget+448>, painters = 0, reserved = 0x0}, static staticMetaObject = {d = {
              superdata = 0x7ffff7238e80 <QObject::staticMetaObject>, stringdata = 0x7ffff3cdd940 <qt_meta_stringdata_QWidget>, 
              data = 0x7ffff3cdd3c0 <qt_meta_data_QWidget>, static_metacall = 0x7ffff39adb80 <QWidget::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, 
              relatedMetaObjects = 0x0, extradata = 0x0}}, data = 0x13948d8}
        sc = 0x0
        files = <optimized out>
        app = <optimized out>
        __PRETTY_FUNCTION__ = "int main(int, char**)"
        argv = {<QList<QString>> = {{p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x137f880}, 
              d = 0x137f880}}, <No data fields>}
        writeWorkspaceFile = false
        dir = {d_ptr = {d = 0x1381ad0}}
        f = {<QFileDevice> = {<QIODevice> = {<QObject> = {_vptr.QObject = 0x7ffff723aa10 <vtable for QFile+16>, static staticMetaObject = {d = {superdata = 0x0, 
                    stringdata = 0x7ffff6f5b0c0 <qt_meta_stringdata_QObject>, data = 0x7ffff6f5afa0 <qt_meta_data_QObject>, 
                    static_metacall = 0x7ffff6e5f770 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, 
                d_ptr = {d = 0x12f6510}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6fa52c0 <qt_meta_stringdata_Qt>, 
                    data = 0x7ffff6fa2ca0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {
                  superdata = 0x7ffff7238e80 <QObject::staticMetaObject>, stringdata = 0x7ffff6fb6700 <qt_meta_stringdata_QIODevice>, 
                  data = 0x7ffff6fb6640 <qt_meta_data_QIODevice>, 
                  static_metacall = 0x7ffff6ebcb80 <QIODevice::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, 
            static staticMetaObject = {d = {superdata = 0x7ffff723ae00 <QIODevice::staticMetaObject>, stringdata = 0x7ffff6fb6600 <qt_meta_stringdata_QFileDevice>, 
                data = 0x7ffff6fb65c0 <qt_meta_data_QFileDevice>, 
                static_metacall = 0x7ffff6ebca40 <QFileDevice::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, 
          static staticMetaObject = {d = {superdata = 0x7ffff723aca0 <QFileDevice::staticMetaObject>, stringdata = 0x7ffff6fb6580 <qt_meta_stringdata_QFile>, 
              data = 0x7ffff6fb6540 <qt_meta_data_QFile>, static_metacall = 0x7ffff6ebc9b0 <QFile::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, 
              relatedMetaObjects = 0x0, extradata = 0x0}}}