Created attachment 156718 [details] coredump description, bt and bt full SUMMARY kwin-wayland in plasma 5.27 consistently crashes when switching window decorations from custom theme to breeze. Breeze theme has some configurations: window specific overrides -> match .* ; border size -> no border ; hide window title bar. when it is enabled, window border size -> theme's default (no borders) STEPS TO REPRODUCE 1. enable a custom theme (e.g. materia) 2. observe no crash 3. switch to breeze 4. kwin crashes OBSERVED RESULT kwin crashes EXPECTED RESULT kwin shouldn't crash SOFTWARE/OS VERSIONS Operating System: Fedora Linux 37 KDE Plasma Version: 5.27.1 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8 Kernel Version: 6.1.13-200.fc37.x86_64 (64-bit) Graphics Platform: Wayland Processors: 16 × 12th Gen Intel® Core™ i5-1240P Memory: 31,0 GiB of RAM Graphics Processor: Mesa Intel® Graphics Manufacturer: HP Product Name: HP EliteBook 840 14 inch G9 Notebook PC ADDITIONAL INFORMATION not sure if kwin also crashed before 5.27. see coredump description, bt and bt full attached.
for quick view, bt: #0 std::__atomic_base<int>::load(std::memory_order) const (__m=std::memory_order::relaxed, this=0x0) at /usr/include/c++/12/bits/atomic_base.h:486 #1 QAtomicOps<int>::loadRelaxed<int>(std::atomic<int> const&) (_q_value=<error reading variable: Cannot access memory at address 0x0>) at /usr/include/qt5/QtCore/qatomic_cxx11.h:239 #2 QBasicAtomicInteger<int>::loadRelaxed() const (this=0x0) at /usr/include/qt5/QtCore/qbasicatomic.h:107 #3 QtPrivate::RefCount::ref() (this=0x0) at /usr/include/qt5/QtCore/qrefcount.h:55 #4 QList<KWin::SceneDelegate*>::QList(QList<KWin::SceneDelegate*> const&) (l=<error reading variable: Cannot access memory at address 0xc>..., this=0x7fffdd903fe8) at /usr/include/qt5/QtCore/qlist.h:856 #5 KWin::Scene::delegates() const (this=0x56186b90ccb0) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/src/scene/scene.cpp:124 #6 0x00007fd28209fbe7 in KWin::Item::scheduleRepaintInternal(QRegion const&) (this=this@entry=0x56186b6d3c30, region=...) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/src/scene/item.cpp:301 #7 0x00007fd2820a0f21 in KWin::Item::updateEffectiveVisibility() (this=this@entry=0x56186b6d3c30) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/src/scene/item.cpp:401 #8 0x00007fd2820a2555 in KWin::Item::setParentItem(KWin::Item*) (this=this@entry=0x56186b6d3c30, item=item@entry=0x0) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/src/scene/item.cpp:86 #9 0x00007fd2820a3026 in KWin::Item::~Item() (this=0x56186b6d3c30, this=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/src/scene/item.cpp:25 #10 0x00007fd281fdd24e in KWin::SurfaceItem::~SurfaceItem() (this=0x56186b6d3c30, this=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/redhat-linux-build/src/kwin_autogen/QSLIUTEOWB/../../../../src/scene/surfaceitem.h:21 #11 KWin::SurfaceItemInternal::~SurfaceItemInternal() (this=0x56186b6d3c30, this=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/redhat-linux-build/src/kwin_autogen/QSLIUTEOWB/../../../../src/scene/surfaceitem_internal.h:22 #12 KWin::SurfaceItemInternal::~SurfaceItemInternal() (this=0x56186b6d3c30, this=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/redhat-linux-build/src/kwin_autogen/QSLIUTEOWB/../../../../src/scene/surfaceitem_internal.h:22 #13 0x00007fd2820a8364 in std::default_delete<KWin::SurfaceItem>::operator()(KWin::SurfaceItem*) const (__ptr=<optimized out>, this=<optimized out>) at /usr/include/c++/12/bits/unique_ptr.h:95 #14 std::unique_ptr<KWin::SurfaceItem, std::default_delete<KWin::SurfaceItem> >::~unique_ptr() (this=0x56186b47a188, this=<optimized out>) at /usr/include/c++/12/bits/unique_ptr.h:396 #15 KWin::WindowItem::~WindowItem() (this=0x56186b47a090, this=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/src/scene/windowitem.cpp:57 #16 0x00007fd281fdcfcb in KWin::WindowItemInternal::~WindowItemInternal() (this=0x56186b47a090, this=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/redhat-linux-build/src/kwin_autogen/QSLIUTEOWB/../../../../src/scene/windowitem.h:116 #17 KWin::WindowItemInternal::~WindowItemInternal() (this=0x56186b47a090, this=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/redhat-linux-build/src/kwin_autogen/QSLIUTEOWB/../../../../src/scene/windowitem.h:116 #18 0x00007fd282117756 in std::default_delete<KWin::WindowItem>::operator()(KWin::WindowItem*) const (__ptr=<optimized out>, this=<optimized out>) at /usr/include/c++/12/bits/unique_ptr.h:89 #19 std::unique_ptr<KWin::WindowItem, std::default_delete<KWin::WindowItem> >::~unique_ptr() (this=0x56186b642f90, this=<optimized out>) at /usr/include/c++/12/bits/unique_ptr.h:396 #20 KWin::Window::~Window() (this=0x56186b642e60, this=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/src/window.cpp:133 #21 0x00007fd28202bc8d in KWin::Deleted::~Deleted() (this=0x56186b642e60, this=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/src/deleted.cpp:50 #22 0x00007fd2806c7f71 in QObject::event(QEvent*) (this=0x56186b642e60, e=0x56186b4e83a0) at kernel/qobject.cpp:1334 #23 0x00007fd27fdaed62 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x56186b642e60, e=0x56186b4e83a0) at kernel/qapplication.cpp:3640 #24 0x00007fd28069d4e8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x56186b642e60, event=0x56186b4e83a0) at kernel/qcoreapplication.cpp:1064 #25 0x00007fd2806a0854 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=data@entry=0x56186ad82c60) at kernel/qcoreapplication.cpp:1821 #26 0x00007fd2806ebb45 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x56186ad86630, flags=...) at kernel/qeventdispatcher_unix.cpp:468 #27 0x000056186a583c51 in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () #28 0x00007fd28069bf3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffdd904470, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69 #29 0x00007fd2806a4002 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121 #30 0x00007fd280b5fad0 in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1863 #31 0x00007fd27fdaecd9 in QApplication::exec() () at kernel/qapplication.cpp:2832 #32 0x000056186a4a4c61 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kwin-5.27.1-2.fc37.x86_64/src/main_wayland.cpp:628
*** This bug has been marked as a duplicate of bug 466313 ***