Application: plasmashell (6.1.2) (Compiled from sources) Qt Version: 6.7.2 Frameworks Version: 6.3.0 Operating System: Linux 6.9.8-gentoo-x86_64 x86_64 Windowing System: Wayland Distribution: "Gentoo Linux" DrKonqi: 6.1.2 [CoredumpBackend] -- Information about the crash: I was on my first virtual desktop, then I wanted to move to second one to check something in display configuration, so I right-clicked on desktop, then… boom. The reporter is unsure if this crash is reproducible. -- Backtrace (Reduced): #4 std::__atomic_base<int>::fetch_add (this=0x2f00, __i=1, __m=std::memory_order_acq_rel) at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/atomic_base.h:629 #5 QAtomicOps<int>::ref<int> (_q_value=<error reading variable: Cannot access memory at address 0x2f00>) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/thread/qatomic_cxx11.h:259 [...] #7 QtSharedPointer::ExternalRefCountData::getAndRef (obj=obj@entry=0x5595ad50cc00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/tools/qsharedpointer.cpp:1456 #8 0x00007f2a0932e744 in QWeakPointer<QObject>::QWeakPointer<QObject, true> (this=<optimized out>, ptr=0x5595ad50cc00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/tools/qsharedpointer_impl.h:733 #9 QWeakPointer<QObject>::assign<QObject> (this=0x5595b01bdd20, ptr=0x5595ad50cc00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/tools/qsharedpointer_impl.h:728 Reported using DrKonqi
Created attachment 171503 [details] New crash information added by DrKonqi DrKonqi auto-attaching complete backtrace.
The (reduced) backtrace looks very similar to #489638 and QWindowPrivate::connectToScreen() is also involved, but klipper is not. Marking as a related bug.
Thread 1 (Thread 0x7f2a02e00a00 (LWP 3276)): [KCrash Handler] #4 std::__atomic_base<int>::fetch_add (this=0x2f00, __i=1, __m=std::memory_order_acq_rel) at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/atomic_base.h:629 #5 QAtomicOps<int>::ref<int> (_q_value=<error reading variable: Cannot access memory at address 0x2f00>) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/thread/qatomic_cxx11.h:259 #6 QBasicAtomicInteger<int>::ref (this=0x2f00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/thread/qbasicatomic.h:47 #7 QtSharedPointer::ExternalRefCountData::getAndRef (obj=obj@entry=0x5595ad50cc00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/tools/qsharedpointer.cpp:1456 #8 0x00007f2a0932e744 in QWeakPointer<QObject>::QWeakPointer<QObject, true> (this=<optimized out>, ptr=0x5595ad50cc00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/tools/qsharedpointer_impl.h:733 #9 QWeakPointer<QObject>::assign<QObject> (this=0x5595b01bdd20, ptr=0x5595ad50cc00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/tools/qsharedpointer_impl.h:728 #10 QPointer<QScreen>::operator= (this=0x5595b01bdd20, p=0x5595ad50cc00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qpointer.h:71 #11 QWindowPrivate::connectToScreen (this=0x5595b01bdbd0, screen=0x5595ad50cc00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/gui/kernel/qwindow.cpp:490 #12 0x00007f2a09332da7 in QWindowPrivate::setTopLevelScreen (this=0x5595b01bdbd0, newScreen=0x5595ad50cc00, recreate=<optimized out>) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/gui/kernel/qwindow.cpp:515 #13 0x00007f2a0ae6d48b in QWidgetPrivate::setScreen (this=this@entry=0x5595aa6c2a70, screen=0x5595ad50cc00) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qwidget.cpp:2440 #14 0x00007f2a0ad5c838 in QMenuPrivate::popup (this=0x5595aa6c2a70, p=..., atAction=0x0, positionFunction=...) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/widgets/widgets/qmenu.cpp:2343 #15 0x00007f2a0ad5ca2f in QMenu::popup (this=<optimized out>, p=<optimized out>, atAction=<optimized out>) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/widgets/widgets/qmenu.cpp:2313 #16 0x00007f2a0b40dc29 in ??? () at /usr/lib64/libPlasmaQuick.so.6 #17 0x00007f2a0a4b5110 in QQuickItemPrivate::deliverPointerEvent (this=this@entry=0x5595a89798e0, event=event@entry=0x7fffea617800) at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/quick/items/qquickitem.cpp:5615 #18 0x00007f2a0a4b521b in QQuickItem::event (this=0x5595a87094c0, ev=0x7fffea617800) at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/quick/items/qquickitem.cpp:9019 #19 0x00007f2a0aeeb695 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5595a87094c0, e=0x7fffea617800) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:3287 #20 0x00007f2a08dda628 in QCoreApplication::notifyInternal2 (receiver=0x5595a87094c0, event=0x7fffea617800) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1142 #21 0x00007f2a08dda6dd in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1583 #22 0x00007f2a0a2bf42e in QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem (this=this@entry=0x5595a86a3280, item=0x5595a87094c0, isGrabber=isGrabber@entry=false, pointerEvent=pointerEvent@entry=0x7fffea617800, handlersOnly=<optimized out>) at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/quick/util/qquickdeliveryagent.cpp:2322 #23 0x00007f2a0a2c00e7 in QQuickDeliveryAgentPrivate::deliverPressOrReleaseEvent (this=this@entry=0x5595a86a3280, event=event@entry=0x7fffea617800, handlersOnly=handlersOnly@entry=false) at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/quick/util/qquickdeliveryagent.cpp:2262 #24 0x00007f2a0a2c14b0 in QQuickDeliveryAgentPrivate::deliverPointerEvent (this=this@entry=0x5595a86a3280, event=event@entry=0x7fffea617800) at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/quick/util/qquickdeliveryagent.cpp:1943 #25 0x00007f2a0a2c24b6 in QQuickDeliveryAgentPrivate::handleMouseEvent (this=this@entry=0x5595a86a3280, event=event@entry=0x7fffea617800) at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/quick/util/qquickdeliveryagent.cpp:1675 #26 0x00007f2a0a2c3d5b in QQuickDeliveryAgent::event (this=<optimized out>, ev=0x7fffea617800) at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/quick/util/qquickdeliveryagent.cpp:746 #27 0x00007f2a0a43d501 in QQuickWindow::event (this=<optimized out>, event=<optimized out>) at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/quick/items/qquickwindow.cpp:1564 #28 0x00007f2a0aeeb695 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5595a86a7580, e=0x7fffea617800) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:3287 #29 0x00007f2a08dda628 in QCoreApplication::notifyInternal2 (receiver=0x5595a86a7580, event=0x7fffea617800) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1142 #30 0x00007f2a08dda6ed in QCoreApplication::sendSpontaneousEvent (receiver=<optimized out>, event=<optimized out>) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1597 #31 0x00007f2a092e034b in QGuiApplicationPrivate::processMouseEvent (e=0x7f29e86ba8c0) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/gui/kernel/qguiapplication.cpp:2327 #32 0x00007f2a0933803c in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/gui/kernel/qwindowsysteminterface.cpp:1114 #33 0x00007f2a09733394 in userEventSourceDispatch (source=<optimized out>) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/gui/platform/unix/qeventdispatcher_glib.cpp:38 #34 0x00007f2a07600834 in ??? () at /usr/lib64/libglib-2.0.so.0 #35 0x00007f2a07603977 in ??? () at /usr/lib64/libglib-2.0.so.0 #36 0x00007f2a07603fa0 in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0 #37 0x00007f2a08ba9943 in QEventDispatcherGlib::processEvents (this=0x5595a705c370, flags=...) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qeventdispatcher_glib.cpp:394 #38 0x00007f2a08e034c2 in QEventLoop::exec (this=this@entry=0x7fffea617bb0, flags=..., flags@entry=...) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/global/qflags.h:34 #39 0x00007f2a08e03658 in QCoreApplication::exec () at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/global/qflags.h:74 #40 0x0000559590a62c4e in ??? () #41 0x00007f2a086c326e in ??? () at /usr/lib64/libc.so.6 #42 0x00007f2a086c3329 in __libc_start_main () at /usr/lib64/libc.so.6 #43 0x0000559590a62cf5 in ??? ()
Very similar to Bug 489638, but likely has a slightly different root cause. Can you get debug symbols and attach a new backtrace that shows us something more useful in place of > #16 0x00007f2a0b40dc29 in ??? () at /usr/lib64/libPlasmaQuick.so.6 ? Instructions can be found at https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl.
Never mind, found the duplicate: Bug 487435. The missing symbol points to ContainmentItem::mousePressEvent. *** This bug has been marked as a duplicate of bug 487435 ***
*** This bug has been marked as a duplicate of bug 484261 ***