With some new code i'm having in unity8 i'm hitting this crash pretty regularly. After talking with Qt people upstream they have told me it's fixed by a very simple if check that is already fixed upstream in the 5.3 branch
I've been running the test in a loop with this patch in for a while and the crash seems to be gone.
Patch:
https://codereview.qt-project.org/#/c/87700/
Backtrace:
#0 markChildQObjectsRecursively (parent=parent@entry=0x1172540, e=e@entry=0x6f6040) at jsruntime/qv4qobjectwrapper.cpp:965
#1 0x00007ffff57f62fb in markChildQObjectsRecursively (parent=parent@entry=0x83ec40, e=e@entry=0x6f6040) at jsruntime/qv4qobjectwrapper.cpp:968
#2 0x00007ffff57f62fb in markChildQObjectsRecursively (parent=parent@entry=0x82b7d0, e=e@entry=0x6f6040) at jsruntime/qv4qobjectwrapper.cpp:968
#3 0x00007ffff57f642b in QV4::QObjectWrapper::markObjects (that=0x7ffff7e04e10, e=0x6f6040) at jsruntime/qv4qobjectwrapper.cpp:986
#4 0x00007ffff5792a16 in QV4::MemoryManager::mark (this=0x717dd0) at jsruntime/qv4mm.cpp:312
#5 0x00007ffff5793eb5 in QV4::MemoryManager::runGC (this=0x717dd0) at jsruntime/qv4mm.cpp:439
#6 0x00007ffff57943a8 in QV4::MemoryManager::alloc (this=0x717dd0, size=size@entry=80) at jsruntime/qv4mm.cpp:180
#7 0x00007ffff57950a3 in allocManaged (size=<optimized out>, this=<optimized out>) at jsruntime/qv4mm_p.h:102
#8 QV4::Managed::operator new (size=size@entry=72, mm=<optimized out>) at jsruntime/qv4managed.cpp:69
#9 0x00007ffff58a7b45 in QV4::QmlValueTypeWrapper::create (v8=v8@entry=0x6f5b60, value=..., type=0x7fffcc3ce0d0) at qml/qqmlvaluetypewrapper.cpp:162
#10 0x00007ffff58b3ebf in QV8Engine::fromVariant (this=0x6f5b60, variant=...) at qml/v8/qv8engine.cpp:313
#11 0x00007ffff58b9732 in QV4::QtObject::method_size (ctx=0x7fffffff8f50) at qml/v8/qqmlbuiltinfunctions.cpp:316
#12 0x00007ffff57bcd4e in QV4::BuiltinFunction::call (that=0x7ffff7ea8380, callData=<optimized out>) at jsruntime/qv4functionobject.cpp:583
#13 0x00007ffff5808b4b in call (d=0x7fffd07fa500, this=<optimized out>) at jsruntime/qv4object_p.h:270
#14 QV4::Runtime::callProperty (context=context@entry=0x7fffffff91f0, name=..., callData=...) at jsruntime/qv4runtime.cpp:938
#15 0x00007ffff5802045 in QV4::Moth::VME::run (this=this@entry=0x7fffffff9177, context=context@entry=0x7fffffff91f0, code=<optimized out>, code@entry=0x7fffcc2cb308 "p\037\200\365\377\177", storeJumpTable=storeJumpTable@entry=0x0) at jsruntime/qv4vme_moth.cpp:369
#16 0x00007ffff58040aa in QV4::Moth::VME::exec (ctxt=0x7fffffff91f0, code=0x7fffcc2cb308 "p\037\200\365\377\177") at jsruntime/qv4vme_moth.cpp:738
#17 0x00007ffff57bf225 in QV4::SimpleScriptFunction::call (that=0x7fffc1cceb40, callData=<optimized out>) at jsruntime/qv4functionobject.cpp:529
#18 0x00007ffff589af8b in call (d=<optimized out>, this=<optimized out>) at ../../include/QtQml/5.3.0/QtQml/private/../../../../../src/qml/jsruntime/qv4object_p.h:270
#19 QQmlJavaScriptExpression::evaluate (this=this@entry=0x1fab7d0, context=<optimized out>, function=..., callData=callData@entry=0x7fffd07fa488, isUndefined=isUndefined@entry=0x7fffffff9428) at qml/qqmljavascriptexpression.cpp:166
#20 0x00007ffff589b496 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x1fab7d0, context=<optimized out>, function=..., function@entry=..., isUndefined=isUndefined@entry=0x7fffffff9428) at qml/qqmljavascriptexpression.cpp:123
#21 0x00007ffff58a2161 in QQmlBinding::update (this=0x1fab7b0, flags=...) at qml/qqmlbinding.cpp:259
#22 0x00007ffff58a297e in update (this=<optimized out>) at qml/qqmlbinding_p.h:105
#23 QQmlBinding::expressionChanged (e=<optimized out>) at qml/qqmlbinding.cpp:327
#24 0x00007ffff587e30f in QQmlNotifier::emitNotify (endpoint=0x1fb2968, a=a@entry=0x0) at qml/qqmlnotifier.cpp:81
#25 0x00007ffff587e2e1 in QQmlNotifier::emitNotify (endpoint=0x2136458, a=a@entry=0x0) at qml/qqmlnotifier.cpp:76
#26 0x00007ffff587e2e1 in QQmlNotifier::emitNotify (endpoint=0x2136500, a=a@entry=0x0) at qml/qqmlnotifier.cpp:76
#27 0x00007ffff58225ac in QQmlData::signalEmitted (object=0x1faa960, index=31, a=0x0) at qml/qqmlengine.cpp:721
#28 0x00007ffff649e233 in QMetaObject::activate (sender=sender@entry=0x1faa960, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3567
#29 0x00007ffff649edd7 in QMetaObject::activate (sender=sender@entry=0x1faa960, m=m@entry=0x7ffff6195520 <QQuickLoader::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3546
#30 0x00007ffff5e21ba6 in itemChanged (this=0x1faa960) at .moc/moc_qquickloader_p.cpp:310
#31 QQuickLoader::setActive (this=this@entry=0x1faa960, newVal=<optimized out>) at items/qquickloader.cpp:368
#32 0x00007ffff5e22333 in QQuickLoader::qt_metacall (this=0x1faa960, _c=QMetaObject::WriteProperty, _id=0, _a=0x7fffffff9840) at .moc/moc_qquickloader_p.cpp:277
#33 0x00007ffff58352fa in QQmlPropertyPrivate::write (object=object@entry=0x1faa960, property=..., value=..., context=context@entry=0x1fa72a0, flags=...) at qml/qqmlproperty.cpp:1322
#34 0x00007ffff583637f in QQmlPropertyPrivate::writeValueProperty (object=object@entry=0x1faa960, core=..., value=..., context=context@entry=0x1fa72a0, flags=...) at qml/qqmlproperty.cpp:1246
#35 0x00007ffff58370d5 in QQmlPropertyPrivate::writeBinding (object=0x1faa960, core=..., context=0x1fa72a0, expression=expression@entry=0x1fac7b0, result=..., isUndefined=isUndefined@entry=false, flags=...) at qml/qqmlproperty.cpp:1578
#36 0x00007ffff58a21f2 in QQmlBinding::update (this=0x1fac790, flags=...) at qml/qqmlbinding.cpp:266
#37 0x00007ffff58a297e in update (this=<optimized out>) at qml/qqmlbinding_p.h:105
#38 QQmlBinding::expressionChanged (e=<optimized out>) at qml/qqmlbinding.cpp:327
#39 0x00007ffff587e30f in QQmlNotifier::emitNotify (endpoint=0x1fb3308, a=a@entry=0x0) at qml/qqmlnotifier.cpp:81
#40 0x00007ffff587e2e1 in QQmlNotifier::emitNotify (endpoint=0x1fb3340, a=a@entry=0x0) at qml/qqmlnotifier.cpp:76
#41 0x00007ffff587e2e1 in QQmlNotifier::emitNotify (endpoint=0x21361b8, a=a@entry=0x0) at qml/qqmlnotifier.cpp:76
#42 0x00007ffff587e2e1 in QQmlNotifier::emitNotify (endpoint=0x21361f0, a=a@entry=0x0) at qml/qqmlnotifier.cpp:76
#43 0x00007ffff58225ac in QQmlData::signalEmitted (object=0x1fa8070, index=54, a=0x0) at qml/qqmlengine.cpp:721
#44 0x00007ffff649e233 in QMetaObject::activate (sender=0x1fa8070, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3567
#45 0x00007ffff5821800 in QQmlData::destroyed (this=0x1fa45e0, object=0x1f51b60) at qml/qqmlengine.cpp:1659
#46 0x00007ffff64a5d7e in QObject::~QObject (this=0x1f51b60, __in_chrg=<optimized out>) at kernel/qobject.cpp:916
#47 0x00007ffff569cdb5 in ~QQmlDMCachedModelData (this=0x1f51b60, __in_chrg=<optimized out>) at util/qqmladaptormodel.cpp:95
#48 ~QQmlDMAbstractItemModelData (this=0x1f51b60, __in_chrg=<optimized out>) at util/qqmladaptormodel.cpp:392
#49 QQmlDMAbstractItemModelData::~QQmlDMAbstractItemModelData (this=0x1f51b60, __in_chrg=<optimized out>) at util/qqmladaptormodel.cpp:392
#50 0x00007ffff58f687d in QQmlDelegateModelPrivate::release (this=0x1e91600, object=0x1fa5070) at types/qqmldelegatemodel.cpp:520
#51 0x00007ffff58f68ad in QQmlDelegateModel::release (this=<optimized out>, item=<optimized out>) at types/qqmldelegatemodel.cpp:536
#52 0x00007ffff5e4f810 in QQuickItemViewPrivate::releaseItem (this=0x1e8f1c0, item=0x1fa5290) at items/qquickitemview.cpp:2349
#53 0x00007ffff5e4e415 in QQuickItemViewPrivate::clear (this=0x1e8f1c0) at items/qquickitemview.cpp:1686
#54 0x00007ffff5e52e3c in QQuickItemView::setModel (this=this@entry=0x1db6fb0, model=...) at items/qquickitemview.cpp:297
#55 0x00007ffff5ec02dd in QQuickItemView::qt_metacall (this=this@entry=0x1db6fb0, _c=_c@entry=QMetaObject::WriteProperty, _id=0, _a=_a@entry=0x7fffffffa370) at .moc/moc_qquickitemview_p.cpp:815
#56 0x00007ffff5eadf27 in QQuickGridView::qt_metacall (this=0x1db6fb0, _c=QMetaObject::WriteProperty, _id=<optimized out>, _a=0x7fffffffa370) at .moc/moc_qquickgridview_p.cpp:211
#57 0x00007ffff581acc0 in QQmlVMEMetaObject::metaCall (this=0x1db71e0, c=QMetaObject::WriteProperty, _id=78, a=0x7fffffffa370) at qml/qqmlvmemetaobject.cpp:980
#58 0x00007ffff581afe1 in QQmlVMEMetaObject::metaCall (this=0x1e8ea00, c=QMetaObject::WriteProperty, _id=<optimized out>, a=0x7fffffffa370) at qml/qqmlvmemetaobject.cpp:906
#59 0x00007ffff58352fa in QQmlPropertyPrivate::write (object=object@entry=0x1db7b00, property=..., value=..., context=context@entry=0x1db91b0, flags=...) at qml/qqmlproperty.cpp:1322
#60 0x00007ffff583637f in QQmlPropertyPrivate::writeValueProperty (object=object@entry=0x1db7b00, core=..., value=..., context=context@entry=0x1db91b0, flags=...) at qml/qqmlproperty.cpp:1246
#61 0x00007ffff58370d5 in QQmlPropertyPrivate::writeBinding (object=0x1db7b00, core=..., context=0x1db91b0, expression=expression@entry=0x1e91f00, result=..., isUndefined=isUndefined@entry=false, flags=...) at qml/qqmlproperty.cpp:1578
#62 0x00007ffff58a21f2 in QQmlBinding::update (this=0x1e91ee0, flags=...) at qml/qqmlbinding.cpp:266
#63 0x00007ffff58a297e in update (this=<optimized out>) at qml/qqmlbinding_p.h:105
#64 QQmlBinding::expressionChanged (e=<optimized out>) at qml/qqmlbinding.cpp:327
#65 0x00007ffff587e30f in QQmlNotifier::emitNotify (endpoint=0x1df9de0, a=a@entry=0x0) at qml/qqmlnotifier.cpp:81
#66 0x00007ffff58225ac in QQmlData::signalEmitted (object=0x1db7f60, index=35, a=0x0) at qml/qqmlengine.cpp:721
---Type <return> to continue, or q <return> to quit---
#67 0x00007ffff649e233 in QMetaObject::activate (sender=0x1db7f60, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3567
#68 0x00007ffff5821800 in QQmlData::destroyed (this=0x1acd660, object=0x1688d00) at qml/qqmlengine.cpp:1659
#69 0x00007ffff64a5d7e in QObject::~QObject (this=0x1688d00, __in_chrg=<optimized out>) at kernel/qobject.cpp:916
#70 0x00007ffff641654d in QAbstractItemModel::~QAbstractItemModel (this=0x1688d00, __in_chrg=<optimized out>) at itemmodels/qabstractitemmodel.cpp:1451
#71 0x00007fffca5831c0 in unity::shell::scopes::ResultsModelInterface::~ResultsModelInterface (this=0x1688d00, __in_chrg=<optimized out>) at /usr/include/unity/shell/scopes/ResultsModelInterface.h:34
#72 0x00007fffca59263a in ResultsModel::~ResultsModel (this=0x1688d00, __in_chrg=<optimized out>) at /home/tsdgeos_work/phablet/unity8/two_see_more_bugfix/tests/mocks/Unity/fake_resultsmodel.h:26
#73 0x00007fffca59266a in ResultsModel::~ResultsModel (this=0x1688d00, __in_chrg=<optimized out>) at /home/tsdgeos_work/phablet/unity8/two_see_more_bugfix/tests/mocks/Unity/fake_resultsmodel.h:26
#74 0x00007ffff649d36c in QObjectPrivate::deleteChildren (this=this@entry=0x106eb60) at kernel/qobject.cpp:1935
#75 0x00007ffff64a60ec in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1028
#76 0x00007ffff641654d in QAbstractItemModel::~QAbstractItemModel (this=0x106eb20, __in_chrg=<optimized out>) at itemmodels/qabstractitemmodel.cpp:1451
#77 0x00007fffca59abf0 in unity::shell::scopes::CategoriesInterface::~CategoriesInterface (this=0x106eb20, __in_chrg=<optimized out>) at /usr/include/unity/shell/scopes/CategoriesInterface.h:37
#78 0x00007fffca59af08 in Categories::~Categories (this=0x106eb20, __in_chrg=<optimized out>) at /home/tsdgeos_work/phablet/unity8/two_see_more_bugfix/builddir/tests/mocks/Unity/../../../../tests/mocks/Unity/fake_categories.h:27
#79 0x00007fffca59af38 in Categories::~Categories (this=0x106eb20, __in_chrg=<optimized out>) at /home/tsdgeos_work/phablet/unity8/two_see_more_bugfix/builddir/tests/mocks/Unity/../../../../tests/mocks/Unity/fake_categories.h:27
#80 0x00007ffff649d36c in QObjectPrivate::deleteChildren (this=this@entry=0x11725d0) at kernel/qobject.cpp:1935
#81 0x00007ffff64a60ec in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1028
#82 0x00007fffca57d3bc in unity::shell::scopes::ScopeInterface::~ScopeInterface (this=0x1172540, __in_chrg=<optimized out>) at /usr/include/unity/shell/scopes/ScopeInterface.h:40
#83 0x00007fffca583158 in Scope::~Scope (this=0x1172540, __in_chrg=<optimized out>) at /home/tsdgeos_work/phablet/unity8/two_see_more_bugfix/tests/mocks/Unity/fake_scope.h:29
#84 0x00007fffca583188 in Scope::~Scope (this=0x1172540, __in_chrg=<optimized out>) at /home/tsdgeos_work/phablet/unity8/two_see_more_bugfix/tests/mocks/Unity/fake_scope.h:29
#85 0x00007fffca57fd64 in qDeleteAll<QList<Scope*>::const_iterator> (begin=..., end=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:323
#86 0x00007fffca57f868 in qDeleteAll<QList<Scope*> > (c=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:331
#87 0x00007fffca57ea37 in Scopes::clear (this=0x83ec40) at /home/tsdgeos_work/phablet/unity8/two_see_more_bugfix/tests/mocks/Unity/fake_scopes.cpp:76
#88 0x00007fffca595eef in Scopes::qt_static_metacall (_o=0x83ec40, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x7fffffffaf60) at /home/tsdgeos_work/phablet/unity8/two_see_more_bugfix/builddir/tests/mocks/Unity/moc_fake_scopes.cpp:112
#89 0x00007fffca596096 in Scopes::qt_metacall (this=0x83ec40, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x7fffffffaf60) at /home/tsdgeos_work/phablet/unity8/two_see_more_bugfix/builddir/tests/mocks/Unity/moc_fake_scopes.cpp:158
#90 0x00007ffff57fc72e in CallMethod (object=object@entry=0x83ec40, index=42, returnType=returnType@entry=43, argCount=argCount@entry=0, argTypes=argTypes@entry=0x0, engine=engine@entry=0x6f5b60, callArgs=callArgs@entry=0x7fffd07fa410)
at jsruntime/qv4qobjectwrapper.cpp:1149
#91 0x00007ffff57fedf3 in CallPrecise (object=object@entry=0x83ec40, data=..., engine=engine@entry=0x6f5b60, callArgs=callArgs@entry=0x7fffd07fa410) at jsruntime/qv4qobjectwrapper.cpp:1387
#92 0x00007ffff57ff511 in QV4::QObjectMethod::callInternal (this=<optimized out>, callData=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:1872
#93 0x00007ffff5808b4b in call (d=0x7fffd07fa410, this=<optimized out>) at jsruntime/qv4object_p.h:270
#94 QV4::Runtime::callProperty (context=context@entry=0x7fffffffb640, name=..., callData=...) at jsruntime/qv4runtime.cpp:938
#95 0x00007ffff5802045 in QV4::Moth::VME::run (this=this@entry=0x7fffffffb5c7, context=context@entry=0x7fffffffb640, code=<optimized out>, code@entry=0x7fffcc1b2cd8 "p\037\200\365\377\177", storeJumpTable=storeJumpTable@entry=0x0) at jsruntime/qv4vme_moth.cpp:369
#96 0x00007ffff58040aa in QV4::Moth::VME::exec (ctxt=0x7fffffffb640, code=0x7fffcc1b2cd8 "p\037\200\365\377\177") at jsruntime/qv4vme_moth.cpp:738
#97 0x00007ffff57bf225 in QV4::SimpleScriptFunction::call (that=0x7ffff7e0bc20, callData=<optimized out>) at jsruntime/qv4functionobject.cpp:529
#98 0x00007ffff5809044 in call (d=0x7fffd07fa388, this=<optimized out>) at jsruntime/qv4object_p.h:270
#99 QV4::Runtime::callElement (context=context@entry=0x7ffff7e615a0, index=..., callData=...) at jsruntime/qv4runtime.cpp:966
#100 0x00007ffff5802105 in QV4::Moth::VME::run (this=this@entry=0x7fffffffb817, context=context@entry=0x7ffff7e615a0, code=<optimized out>, code@entry=0x7fffcc1d8bf8 "p\037\200\365\377\177", storeJumpTable=storeJumpTable@entry=0x0) at jsruntime/qv4vme_moth.cpp:388
#101 0x00007ffff58040aa in QV4::Moth::VME::exec (ctxt=0x7ffff7e615a0, code=0x7fffcc1d8bf8 "p\037\200\365\377\177") at jsruntime/qv4vme_moth.cpp:738
#102 0x00007ffff57beecc in QV4::ScriptFunction::call (that=0x7ffff7e0b620, callData=<optimized out>) at jsruntime/qv4functionobject.cpp:421
#103 0x00007ffff58087a5 in call (d=0x7fffd07fa260, this=<optimized out>) at jsruntime/qv4object_p.h:270
#104 QV4::Runtime::callActivationProperty (context=context@entry=0x7fffffffbad0, name=..., callData=...) at jsruntime/qv4runtime.cpp:912
#105 0x00007ffff580216f in QV4::Moth::VME::run (this=this@entry=0x7fffffffba57, context=context@entry=0x7fffffffbad0, code=<optimized out>, code@entry=0x7fffcc1f29c8 "p\037\200\365\377\177", storeJumpTable=storeJumpTable@entry=0x0) at jsruntime/qv4vme_moth.cpp:398
#106 0x00007ffff58040aa in QV4::Moth::VME::exec (ctxt=0x7fffffffbad0, code=0x7fffcc1f29c8 "p\037\200\365\377\177") at jsruntime/qv4vme_moth.cpp:738
#107 0x00007ffff57bf225 in QV4::SimpleScriptFunction::call (that=0x7ffff7e0b650, callData=<optimized out>) at jsruntime/qv4functionobject.cpp:529
#108 0x00007ffff58087a5 in call (d=0x7fffd07fa1f0, this=<optimized out>) at jsruntime/qv4object_p.h:270
#109 QV4::Runtime::callActivationProperty (context=context@entry=0x7fffffffbd80, name=..., callData=...) at jsruntime/qv4runtime.cpp:912
#110 0x00007ffff580216f in QV4::Moth::VME::run (this=this@entry=0x7fffffffbd07, context=context@entry=0x7fffffffbd80, code=<optimized out>, code@entry=0x7fffcc2020c8 "p\037\200\365\377\177", storeJumpTable=storeJumpTable@entry=0x0) at jsruntime/qv4vme_moth.cpp:398
#111 0x00007ffff58040aa in QV4::Moth::VME::exec (ctxt=0x7fffffffbd80, code=0x7fffcc2020c8 "p\037\200\365\377\177") at jsruntime/qv4vme_moth.cpp:738
#112 0x00007ffff57bf225 in QV4::SimpleScriptFunction::call (that=0x7ffff7e0b6b0, callData=<optimized out>) at jsruntime/qv4functionobject.cpp:529
#113 0x00007ffff58087a5 in call (d=0x7fffd07fa098, this=<optimized out>) at jsruntime/qv4object_p.h:270
#114 QV4::Runtime::callActivationProperty (context=context@entry=0x7fffffffc030, name=..., callData=...) at jsruntime/qv4runtime.cpp:912
#115 0x00007ffff580216f in QV4::Moth::VME::run (this=this@entry=0x7fffffffbfb7, context=context@entry=0x7fffffffc030, code=<optimized out>, code@entry=0x7fffcc20dff8 "p\037\200\365\377\177", storeJumpTable=storeJumpTable@entry=0x0) at jsruntime/qv4vme_moth.cpp:398
#116 0x00007ffff58040aa in QV4::Moth::VME::exec (ctxt=0x7fffffffc030, code=0x7fffcc20dff8 "p\037\200\365\377\177") at jsruntime/qv4vme_moth.cpp:738
#117 0x00007ffff57bf225 in QV4::SimpleScriptFunction::call (that=0x7ffff7e0b830, callData=<optimized out>) at jsruntime/qv4functionobject.cpp:529
#118 0x00007ffff589af8b in call (d=<optimized out>, this=<optimized out>) at ../../include/QtQml/5.3.0/QtQml/private/../../../../../src/qml/jsruntime/qv4object_p.h:270
#119 QQmlJavaScriptExpression::evaluate (this=this@entry=0x86a650, context=<optimized out>, function=..., function@entry=..., callData=callData@entry=0x7fffd07fa028, isUndefined=isUndefined@entry=0x0) at qml/qqmljavascriptexpression.cpp:166
#120 0x00007ffff5843436 in QQmlBoundSignalExpression::evaluate (this=<optimized out>, a=a@entry=0x0) at qml/qqmlboundsignal.cpp:289
#121 0x00007ffff58437ea in QQmlBoundSignal_callback (e=<optimized out>, a=0x0) at qml/qqmlboundsignal.cpp:416
#122 0x00007ffff587e30f in QQmlNotifier::emitNotify (endpoint=0x86a0f8, a=a@entry=0x0) at qml/qqmlnotifier.cpp:81
#123 0x00007ffff58225ac in QQmlData::signalEmitted (object=0x865d20, index=30, a=0x0) at qml/qqmlengine.cpp:721
#124 0x00007ffff649e233 in QMetaObject::activate (sender=0x865d20, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x0) at kernel/qobject.cpp:3567
#125 0x00007ffff58199d5 in QQmlVMEMetaObject::activate (this=this@entry=0x8660f0, object=<optimized out>, index=<optimized out>, args=args@entry=0x0) at qml/qqmlvmemetaobject.cpp:1333
#126 0x00007ffff581b55e in QQmlVMEMetaObject::metaCall (this=0x8660f0, c=<optimized out>, _id=<optimized out>, a=<optimized out>) at qml/qqmlvmemetaobject.cpp:849
#127 0x00007ffff581acef in QQmlVMEMetaObject::metaCall (this=0x86ce20, c=QMetaObject::WriteProperty, _id=42, a=0x7fffffffc950) at qml/qqmlvmemetaobject.cpp:978
#128 0x00007ffff581acef in QQmlVMEMetaObject::metaCall (this=0x86a8e0, c=QMetaObject::WriteProperty, _id=42, a=0x7fffffffc950) at qml/qqmlvmemetaobject.cpp:978
#129 0x00007ffff58352fa in QQmlPropertyPrivate::write (object=object@entry=0x865d20, property=..., value=..., context=context@entry=0x81bf30, flags=...) at qml/qqmlproperty.cpp:1322
#130 0x00007ffff583637f in QQmlPropertyPrivate::writeValueProperty (object=object@entry=0x865d20, core=..., value=..., context=context@entry=0x81bf30, flags=...) at qml/qqmlproperty.cpp:1246
#131 0x00007ffff58370d5 in QQmlPropertyPrivate::writeBinding (object=0x865d20, core=..., context=0x81bf30, expression=expression@entry=0x869950, result=..., isUndefined=isUndefined@entry=false, flags=...) at qml/qqmlproperty.cpp:1578
#132 0x00007ffff58a21f2 in QQmlBinding::update (this=0x869930, flags=...) at qml/qqmlbinding.cpp:266
---Type <return> to continue, or q <return> to quit---
#133 0x00007ffff58a297e in update (this=<optimized out>) at qml/qqmlbinding_p.h:105
#134 QQmlBinding::expressionChanged (e=<optimized out>) at qml/qqmlbinding.cpp:327
#135 0x00007ffff587e30f in QQmlNotifier::emitNotify (endpoint=0x86e9d8, a=a@entry=0x0) at qml/qqmlnotifier.cpp:81
#136 0x00007ffff58225ac in QQmlData::signalEmitted (object=0x865d20, index=34, a=0x0) at qml/qqmlengine.cpp:721
#137 0x00007ffff649e233 in QMetaObject::activate (sender=0x865d20, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x0) at kernel/qobject.cpp:3567
#138 0x00007ffff58199d5 in QQmlVMEMetaObject::activate (this=this@entry=0x8660f0, object=<optimized out>, index=<optimized out>, args=args@entry=0x0) at qml/qqmlvmemetaobject.cpp:1333
#139 0x00007ffff581b55e in QQmlVMEMetaObject::metaCall (this=0x8660f0, c=<optimized out>, _id=<optimized out>, a=<optimized out>) at qml/qqmlvmemetaobject.cpp:849
#140 0x00007ffff581acef in QQmlVMEMetaObject::metaCall (this=0x86ce20, c=QMetaObject::WriteProperty, _id=46, a=0x7fffffffd200) at qml/qqmlvmemetaobject.cpp:978
#141 0x00007ffff581acef in QQmlVMEMetaObject::metaCall (this=0x86a8e0, c=QMetaObject::WriteProperty, _id=46, a=0x7fffffffd200) at qml/qqmlvmemetaobject.cpp:978
#142 0x00007ffff58352fa in QQmlPropertyPrivate::write (object=object@entry=0x865d20, property=..., value=..., context=context@entry=0x863fa0, flags=...) at qml/qqmlproperty.cpp:1322
#143 0x00007ffff583637f in QQmlPropertyPrivate::writeValueProperty (object=object@entry=0x865d20, core=..., value=..., context=context@entry=0x863fa0, flags=...) at qml/qqmlproperty.cpp:1246
#144 0x00007ffff58370d5 in QQmlPropertyPrivate::writeBinding (object=0x865d20, core=..., context=0x863fa0, expression=expression@entry=0x86c410, result=..., isUndefined=isUndefined@entry=false, flags=...) at qml/qqmlproperty.cpp:1578
#145 0x00007ffff58a21f2 in QQmlBinding::update (this=0x86c3f0, flags=...) at qml/qqmlbinding.cpp:266
#146 0x00007ffff58a297e in update (this=<optimized out>) at qml/qqmlbinding_p.h:105
#147 QQmlBinding::expressionChanged (e=<optimized out>) at qml/qqmlbinding.cpp:327
#148 0x00007ffff587e30f in QQmlNotifier::emitNotify (endpoint=0x86ea10, a=a@entry=0x0) at qml/qqmlnotifier.cpp:81
#149 0x00007ffff58225ac in QQmlData::signalEmitted (object=0x7f3260, index=3, a=0x0) at qml/qqmlengine.cpp:721
#150 0x00007ffff649e233 in QMetaObject::activate (sender=0x7f3260, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3567
#151 0x00007ffff649edd7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7ffff7dd8a00 <QTestRootObject::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3546
#152 0x00007ffff7bcac4c in windowShownChanged (this=<optimized out>) at .moc/quicktest.moc:187
#153 setWindowShown (value=true, this=<optimized out>) at quicktest.cpp:103
#154 quick_test_main (argc=9, argv=<optimized out>, name=<optimized out>, sourceDir=<optimized out>) at quicktest.cpp:375
#155 0x00007ffff7819ec5 in __libc_start_main (main=0x4005e0 <main(int, char**)>, argc=9, argv=0x7fffffffdac8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffdab8) at libc-start.c:287
#156 0x000000000040061c in _start ()
This bug was fixed in the package qtdeclarative-
---------------
qtdeclarative-
* debian/
- Cherry-pick a fix for a crash happening in some new code (LP: #1369930)
-- Timo Jyrinki <email address hidden> Tue, 16 Sep 2014 08:45:09 +0000