https://bugs.kde.org/show_bug.cgi?id=473609
Bug ID: 473609
Summary: Kirigami Gallery crashed in ~ToolBarLayoutDelegate()
Classification: Frameworks and Libraries
Product: frameworks-kirigami
Version: Master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kdelibs-b...@kde.org
Reporter: m...@ratijas.tk
CC: notm...@gmail.com
Target Milestone: Not decided
SUMMARY
backtrace:
#0 __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1 0x00007f2e7fc8e8a3 in __pthread_kill_internal (signo=11,
threadid=<optimized out>) at pthread_kill.c:78
#2 0x00007f2e7fc3e668 in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#3 0x00007f2e798cd989 in KCrash::defaultCrashHandler(int) (sig=11) at
/home/ratijas/kde/src6/kcrash/src/kcrash.cpp:612
#4 0x00007f2e7fc3e710 in <signal handler called> () at /usr/lib/libc.so.6
#5 0x00007f2e80f16d1b in QScopedPointer<QShortcutMapPrivate,
QScopedPointerDeleter<QShortcutMapPrivate> >::get() const (this=<optimized
out>)
at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/corelib/tools/qscopedpointer.h:111
#6 qGetPtrHelper<QScopedPointer<QShortcutMapPrivate,
QScopedPointerDeleter<QShortcutMapPrivate> >
>(QScopedPointer<QShortcutMapPrivate,
QScopedPointerDeleter<QShortcutMapPrivate> >&) (ptr=<optimized out>)
at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/corelib/global/qtclasshelpermacros.h:79
#7 QShortcutMap::d_func() (this=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/gui/kernel/qshortcutmap_p.h:37
#8 QShortcutMap::removeShortcut(int, QObject*, QKeySequence const&)
(this=this@entry=0x148, id=-65, owner=owner@entry=0x564780011ad0, key=...)
at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/gui/kernel/qshortcutmap.cpp:149
#9 0x00007f2e81de458f in
QQuickShortcut::ungrabShortcut(QQuickShortcut::Shortcut&) (shortcut=...,
this=0x564780011ad0)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/quick/util/qquickshortcut.cpp:422
#10 QQuickShortcut::ungrabShortcut(QQuickShortcut::Shortcut&) (shortcut=...,
this=0x564780011ad0)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/quick/util/qquickshortcut.cpp:419
#11 QQuickShortcut::~QQuickShortcut() (this=0x564780011ad0, this=<optimized
out>)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/quick/util/qquickshortcut.cpp:128
#12 0x00007f2e81dcac38 in
QQmlPrivate::QQmlElement<QQuickShortcut>::~QQmlElement() (this=0x564780011ad0,
this=<optimized out>)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/qml/qml/qqmlprivate.h:99
#13 QQmlPrivate::QQmlElement<QQuickShortcut>::~QQmlElement()
(this=0x564780011ad0, this=<optimized out>)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/qml/qml/qqmlprivate.h:99
#14 0x00007f2e8057d57b in QObjectPrivate::deleteChildren()
(this=this@entry=0x56477f52c660)
at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/corelib/kernel/qobject.cpp:2174
#15 0x00007f2e80580d68 in QObject::~QObject() (this=<optimized out>,
this=<optimized out>)
at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/corelib/kernel/qobject.cpp:1112
#16 0x00007f2e7f99fece in QQuickButton::~QQuickButton() (this=0x564780083190,
this=<optimized out>)
at
/usr/src/debug/qt6-declarative/build/include/QtQuickTemplates2/6.5.2/QtQuickTemplates2/private/../../../../../../qtdeclarative-everywhere-src-6.5.2/src/quicktemplates/qquickbutton_p.h:24
#17 QQuickToolButton::~QQuickToolButton() (this=0x564780083190, this=<optimized
out>)
at
/usr/src/debug/qt6-declarative/build/include/QtQuickTemplates2/6.5.2/QtQuickTemplates2/private/../../../../../../qtdeclarative-everywhere-src-6.5.2/src/quicktemplates/qquicktoolbutton_p.h:24
#18 QQmlPrivate::QQmlElement<QQuickToolButton>::~QQmlElement()
(this=0x564780083190, this=<optimized out>)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/qml/qml/qqmlprivate.h:99
#19 QQmlPrivate::QQmlElement<QQuickToolButton>::~QQmlElement()
(this=0x564780083190, this=<optimized out>)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/qml/qml/qqmlprivate.h:99
#20 0x00007f2e73f3002c in ToolBarLayoutDelegate::~ToolBarLayoutDelegate()
(this=0x56477ff8f6b0, __in_chrg=<optimized out>)
at /home/ratijas/kde/src6/kirigami/src/toolbarlayoutdelegate.cpp:82
#21 0x00007f2e73f30069 in ToolBarLayoutDelegate::~ToolBarLayoutDelegate()
(this=0x56477ff8f6b0, __in_chrg=<optimized out>)
at /home/ratijas/kde/src6/kirigami/src/toolbarlayoutdelegate.cpp:88
#22 0x00007f2e73f2f7f5 in
std::default_delete<ToolBarLayoutDelegate>::operator()(ToolBarLayoutDelegate*)
const
(__ptr=<optimized out>, this=<optimized out>) at
/usr/include/c++/13.2.1/bits/unique_ptr.h:93
#23 std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> >::~unique_ptr()
(this=0x564780020540, __in_chrg=<optimized out>)
at /usr/include/c++/13.2.1/bits/unique_ptr.h:404
#24 std::pair<QObject* const, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >::~pair()
(this=0x564780020538, __in_chrg=<optimized out>) at
/usr/include/c++/13.2.1/bits/stl_pair.h:187
#25 std::__new_allocator<std::__detail::_Hash_node<std::pair<QObject* const,
std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >, false>
>::destroy<std::pair<QObject* const, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > > >(std::pair<QObject* const,
std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >*) (__p=0x564780020538,
this=<optimized out>)
at /usr/include/c++/13.2.1/bits/new_allocator.h:194
#26
std::allocator_traits<std::allocator<std::__detail::_Hash_node<std::pair<QObject*
const, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >, false> >
>::destroy<std::pair<QObject* const, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >
>(std::allocator<std::__detail::_Hash_node<std::pair<QObject* const,
std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >, false> >&, std::pair<QObject*
const, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >*)
(__p=0x564780020538, __a=<optimized out>) at
/usr/include/c++/13.2.1/bits/alloc_traits.h:557
#27
std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<QObject*
const, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >, false> >
>::_M_deallocate_node(std::__detail::_Hash_node<std::pair<QObject* const,
std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >, false>*) (this=<optimized out>,
__n=0x564780020530)
at /usr/include/c++/13.2.1/bits/hashtable_policy.h:2020
#28
std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<QObject*
const, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >, false> >
>::_M_deallocate_nodes(std::__detail::_Hash_node<std::pair<QObject* const,
std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >, false>*) (__n=0x5647800028d0,
this=0x56477f3c8030)
at /usr/include/c++/13.2.1/bits/hashtable_policy.h:2042
#29 std::_Hashtable<QObject*, std::pair<QObject* const,
std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >,
std::allocator<std::pair<QObject* const, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > > >, std::__detail::_Select1st,
std::equal_to<QObject*>, std::hash<QObject*>,
std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash,
std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false,
false, true> >::clear() (this=this@entry=0x56477f3c8030) at
/usr/include/c++/13.2.1/bits/hashtable.h:2509
#30 0x00007f2e73f2bcd2 in std::_Hashtable<QObject*, std::pair<QObject* const,
std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > >,
std::allocator<std::pair<QObject* const, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > > >, std::__detail::_Select1st,
std::equal_to<QObject*>, std::hash<QObject*>,
std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash,
std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false,
false, true> >::~_Hashtable() (this=0x56477f3c8030, __in_chrg=<optimized out>)
at /usr/include/c++/13.2.1/bits/hashtable.h:1593
#31 std::unordered_map<QObject*, std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> >, std::hash<QObject*>,
std::equal_to<QObject*>, std::allocator<std::pair<QObject* const,
std::unique_ptr<ToolBarLayoutDelegate,
std::default_delete<ToolBarLayoutDelegate> > > > >::~unordered_map()
(this=0x56477f3c8030, __in_chrg=<optimized out>) at
/usr/include/c++/13.2.1/bits/unordered_map.h:109
#32 ToolBarLayout::Private::~Private() (this=0x56477f3c7f70,
__in_chrg=<optimized out>) at
/home/ratijas/kde/src6/kirigami/src/toolbarlayout.cpp:35
#33
std::default_delete<ToolBarLayout::Private>::operator()(ToolBarLayout::Private*)
const (this=<optimized out>, __ptr=0x56477f3c7f70)
at /usr/include/c++/13.2.1/bits/unique_ptr.h:99
#34
std::default_delete<ToolBarLayout::Private>::operator()(ToolBarLayout::Private*)
const (__ptr=0x56477f3c7f70, this=<optimized out>)
at /usr/include/c++/13.2.1/bits/unique_ptr.h:93
#35 std::unique_ptr<ToolBarLayout::Private,
std::default_delete<ToolBarLayout::Private> >::~unique_ptr()
(this=0x56477f7170c0, __in_chrg=<optimized out>) at
/usr/include/c++/13.2.1/bits/unique_ptr.h:404
#36 ToolBarLayout::~ToolBarLayout() (this=this@entry=0x56477f7170a0,
__in_chrg=<optimized out>)
at /home/ratijas/kde/src6/kirigami/src/toolbarlayout.cpp:111
#37 0x00007f2e73f111b5 in
QQmlPrivate::QQmlElement<ToolBarLayout>::~QQmlElement() (this=0x56477f7170a0,
__in_chrg=<optimized out>)
at /usr/include/qt6/QtQml/qqmlprivate.h:99
#38 QQmlPrivate::QQmlElement<ToolBarLayout>::~QQmlElement()
(this=0x56477f7170a0, __in_chrg=<optimized out>) at
/usr/include/qt6/QtQml/qqmlprivate.h:99
#39 0x00007f2e8057d57b in QObjectPrivate::deleteChildren()
(this=this@entry=0x56477f6042c0)
at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/corelib/kernel/qobject.cpp:2174
#40 0x00007f2e80580d68 in QObject::~QObject() (this=<optimized out>,
this=<optimized out>)
at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/corelib/kernel/qobject.cpp:1112
#41 0x00007f2e7f9a5aca in
QQmlPrivate::QQmlElement<QQuickControl>::~QQmlElement() (this=0x56477fc537e0,
this=<optimized out>)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/qml/qml/qqmlprivate.h:99
#42 QQmlPrivate::QQmlElement<QQuickControl>::~QQmlElement()
(this=0x56477fc537e0, this=<optimized out>)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/qml/qml/qqmlprivate.h:99
#43 0x00007f2e8057d57b in QObjectPrivate::deleteChildren()
(this=this@entry=0x56477f712220)
at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/corelib/kernel/qobject.cpp:2174
#44 0x00007f2e80580d68 in QObject::~QObject() (this=<optimized out>,
this=<optimized out>)
at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.5.2/src/corelib/kernel/qobject.cpp:1112
#45 0x00007f2e7f9a0b4e in QQuickItemDelegate::~QQuickItemDelegate()
(this=0x56477f489960, this=<optimized out>)
at
/usr/src/debug/qt6-declarative/build/include/QtQuickTemplates2/6.5.2/QtQuickTemplates2/private/../../../../../../qtdeclarative-everywhere-src-6.5.2/src/quicktemplates/qquickitemdelegate_p.h:24
#46 QQmlPrivate::QQmlElement<QQuickItemDelegate>::~QQmlElement()
(this=0x56477f489960, this=<optimized out>)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/qml/qml/qqmlprivate.h:99
#47 QQmlPrivate::QQmlElement<QQuickItemDelegate>::~QQmlElement()
(this=0x56477f489960, this=<optimized out>)
at
/usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.5.2/src/qml/qml/qqmlprivate.h:99
#48 0x00007f2e73ef1a17 in
qDeleteAll<QList<QQuickItem*>::const_iterator>(QList<QQuickItem*>::const_iterator,
QList<QQuickItem*>::const_iterator)
(end=..., begin=...) at /usr/include/qt6/QtCore/qalgorithms.h:27
#49 qDeleteAll<QList<QQuickItem*> >(QList<QQuickItem*> const&) (c=<optimized
out>) at /usr/include/qt6/QtCore/qalgorithms.h:35
#50 DelegateCache::~DelegateCache()
(this=0x7f2e73f6e9d0 <QGlobalStatic<QtGlobalStatic::Holder<(anonymous
namespace)::Q_QGS_s_delegateCache> >::instance()::holder>, __in_chrg=<optimized
out>) at /home/ratijas/kde/src6/kirigami/src/delegaterecycler.cpp:63
#51 0x00007f2e73ef1c79 in QtGlobalStatic::Holder<(anonymous
namespace)::Q_QGS_s_delegateCache>::~Holder()
(this=<optimized out>, __in_chrg=<optimized out>) at
/usr/include/qt6/QtCore/qglobalstatic.h:43
#52 0x00007f2e7fc40cc6 in __run_exit_handlers
(status=0, listp=0x7f2e7fe3e680 <__exit_funcs>,
run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at
exit.c:111
#53 0x00007f2e7fc40e10 in __GI_exit (status=<optimized out>) at exit.c:141
#54 0x00007f2e7fc27cd7 in __libc_start_call_main
(main=main@entry=0x56477d6cd430 <main(int, char**)>, argc=argc@entry=1,
argv=argv@entry=0x7ffc047e0518)
at ../sysdeps/nptl/libc_start_call_main.h:74
#55 0x00007f2e7fc27d8a in __libc_start_main_impl
(main=0x56477d6cd430 <main(int, char**)>, argc=1, argv=0x7ffc047e0518,
init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7ffc047e0508) at ../csu/libc-start.c:360
#56 0x000056477d6cd995 in _start ()
STEPS TO REPRODUCE
1. Open Kirigami Gallery
2. Open «Grid view of Cards» page
3. Scroll down until it starts printing lots errors like this:
qrc:/contents/ui/gallery/CardsGridViewGallery.qml:75: TypeError: Cannot read
property 'title' of null
qrc:/contents/ui/gallery/CardsGridViewGallery.qml:76: TypeError: Cannot read
property 'image' of null
qrc:/contents/ui/gallery/CardsGridViewGallery.qml:90: TypeError: Cannot read
property 'actions' of null
qrc:/contents/ui/gallery/CardsGridViewGallery.qml:89: TypeError: Cannot read
property 'actions' of null
qrc:/contents/ui/gallery/CardsGridViewGallery.qml:85: TypeError: Cannot read
property 'actions' of null
qrc:/contents/ui/gallery/CardsGridViewGallery.qml:84: TypeError: Cannot read
property 'actions' of null
qrc:/contents/ui/gallery/CardsGridViewGallery.qml:80: TypeError: Cannot read
property 'text' of null
In my observations, only few errors are not sufficient. You have to scroll
really far away from the top. Aim straight for the bottom of the page.
4. Quit the app.
OBSERVED RESULT
Crashes during destruction of ToolBarLayoutDelegate, deep in QQuickButton and
QQuickShortcut::ungrabShortcut.
EXPECTED RESULT
Should not crash.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: git/master
Qt Version: 6.5.2
ADDITIONAL INFORMATION
Not sure if this is upstream Qt bug or ours. Destructor ~ToolBarLayoutDelegate
deletes owned items with a plain C++ `delete` keyword. But even though they are
directly owned, I'm not sure it is very well supported, unlike deleteLater().
However, on a closer look, this is not a regular destructor crash. This is
coming from ~DelegateCache() during __run_exit_handlers! So that makes me think
DelegateCache is buggy.
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