https://bugs.kde.org/show_bug.cgi?id=483884
Bug ID: 483884
Summary: systemsettings asserts at
"Q_ASSERT(m()->internalClass->vtable)" frequently when
Qt is built in debug mode
Classification: Applications
Product: systemsettings
Version: master
Platform: Compiled Sources
OS: Other
Status: REPORTED
Keywords: geezer-jobs, qt6
Severity: crash
Priority: NOR
Component: generic-crash
Assignee: plasma-b...@kde.org
Reporter: qydwhotm...@gmail.com
Target Milestone: ---
SUMMARY
Qt 6.8, debug build, qtdeclarative at
https://invent.kde.org/qt/qt/qtdeclarative/-/commit/2bc1c820902261a46d35d8f7c0eefa7adc2be909
https://bugreports.qt.io/browse/QTBUG-119274 might be related
`QML_DISABLE_DISK_CACHE=1` can work around it.
STEPS TO REPRODUCE
1. Open systemsettings
2. Click Search
OBSERVED RESULT
Assert
EXPECTED RESULT
No assert
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version: 6.0.80
KDE Frameworks Version:
Qt Version: 6.8.0
ADDITIONAL INFORMATION
(gdb) bt
#0 QV4::Value::as<QV4::QObjectWrapper>() const (this=0x7ffff2609a80)
at /home/qydw/kde/src/qtdeclarative/src/qml/jsruntime/qv4value_p.h:136
#1 0x00007ffff6b7aee2 in QV4::Value::as<QV4::QObjectWrapper>()
(this=<optimized out>)
at /home/qydw/kde/src/qtdeclarative/src/qml/jsruntime/qv4value_p.h:151
#2 0x00007ffff6c760b8 in QV4::(anonymous
namespace)::markWeakValues(QV4::GCStateMachine*, QV4::(anonymous
namespace)::ExtraData&)
(that=0x7178c0, stateData=std::variant [index 1] = {...})
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm.cpp:749
#3 0x00007ffff6c7678e in QV4::GCStateMachine::transition()
(this=0x7178c0)
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm.cpp:1473
#4 0x00007ffff6c77345 in QV4::GCStateMachine::step()
(this=<optimized out>)
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm_p.h:79
#5 QV4::MemoryManager::runGC() (this=this@entry=0x657740)
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm.cpp:1258
#6 0x00007ffff6babb3f in QV4::MemoryManager::allocate(QV4::BlockAllocator*,
unsigned long) (this=0x657740, allocator=0x657750, size=size@entry=96)
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm_p.h:396
#7 0x00007ffff6c786f2 in QV4::MemoryManager::allocData(unsigned long)
(this=<optimized out>, size=size@entry=96)
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm.cpp:1004
#8 0x00007ffff6c7881d in
QV4::MemoryManager::allocObjectWithMemberData(QV4::VTable const*, unsigned int)
(this=this@entry=0x657740, vtable=vtable@entry=0x7ffff6fd8560
<QV4::QQmlTypeWrapper::static_vtbl>, nMembers=<optimized out>)
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm.cpp:1016
#9 0x00007ffff6da4b7f in
QV4::MemoryManager::allocateObject<QV4::QQmlTypeWrapper>(QV4::Heap::InternalClass*)
(this=this@entry=0x657740, ic=0x7fffd8690600)
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm_p.h:248
#10 0x00007ffff6da4bfb in
QV4::MemoryManager::allocateObject<QV4::QQmlTypeWrapper>(QV4::InternalClass*)
(this=this@entry=0x657740, ic=ic@entry=0x7fffd89bf5d8)
at /home/qydw/kde/src/qtdeclarative/src/qml/jsruntime/qv4managed_p.h:189
#11 0x00007ffff6da4ca0 in
QV4::MemoryManager::allocateObject<QV4::QQmlTypeWrapper>() (this=0x657740)
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm_p.h:268
#12 0x00007ffff6da4cde in QV4::MemoryManager::allocate<QV4::QQmlTypeWrapper,
QV4::Heap::QQmlTypeWrapper::TypeNameMode&, QObject*&, QQmlTypePrivate
const*>(QV4::Heap::QQmlTypeWrapper::TypeNameMode&, QObject*&, QQmlTypePrivate
const*&&) (this=<optimized out>)
at /home/qydw/kde/src/qtdeclarative/src/qml/memory/qv4mm_p.h:301
#13 0x00007ffff6da3c60 in QV4::QQmlTypeWrapper::create(QV4::ExecutionEngine*,
QObject*, QQmlType const&, QV4::Heap::QQmlTypeWrapper::TypeNameMode)
(engine=<optimized out>, o=<optimized out>,
o@entry=0x28e0cb0, t=..., mode=<optimized out>)
at /home/qydw/kde/src/qtdeclarative/src/qml/qml/qqmltypewrapper.cpp:148
#14 0x00007ffff6da48ae in QV4::QQmlTypeWrapper::virtualGet(QV4::Managed const*,
QV4::PropertyKey, QV4::Value const*, bool*)
(m=m@entry=0x7fffd89bf5b8, id=..., receiver=receiver@entry=0x7fffd89bf5b8,
hasProperty=hasProperty@entry=0x0)
at /home/qydw/kde/src/qtdeclarative/src/qml/qml/qqmltypewrapper_p.h:67
#15 0x00007ffff6b7a779 in QV4::Object::get(QV4::StringOrSymbol*, bool*,
QV4::Value const*) const
(this=this@entry=0x7fffd89bf5b8, name=name@entry=0x7fffd89bf5c0,
hasProperty=hasProperty@entry=0x0, receiver=0x7fffd89bf5b8, receiver@entry=0x0)
at /home/qydw/kde/src/qtdeclarative/src/qml/jsruntime/qv4object_p.h:271
#16 0x00007ffff6bec81d in QV4::Lookup::getterFallback(QV4::Lookup*,
QV4::ExecutionEngine*, QV4::Value const&)
(l=0x91d6b0, engine=<optimized out>, object=<optimized out>)
at /home/qydw/kde/src/qtdeclarative/src/qml/jsruntime/qv4lookup.cpp:204
#17 0x00007ffff6c35737 in QV4::Runtime::GetLookup::call(QV4::ExecutionEngine*,
QV4::Function*, QV4::Value const&, int)
(engine=0x6772d0, f=<optimized out>, base=..., index=<optimized out>)
at /home/qydw/kde/src/qtdeclarative/src/qml/jsruntime/qv4runtime.cpp:1150
#18 0x00007fffe3e26173 in ()
#19 0x0000000000000000 in ()
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