https://bugs.kde.org/show_bug.cgi?id=489072
--- Comment #2 from Arsen Arsenović <ar...@aarsen.me> --- Created attachment 170882 --> https://bugs.kde.org/attachment.cgi?id=170882&action=edit WAYLAND_DEBUG=1 logs from KRunner just before the crash KRunner backtrace: #0 QPlatformScreen::screen (this=this@entry=0x0) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/gui/kernel/qplatformscreen.cpp:115 #1 0x00007ffff4aca191 in QtWaylandClient::QWaylandWindow::handleScreensChanged (this=0x555556a7b830) at /usr/src/debug/dev-qt/qtwayland-6.7.2/qtwayland-everywhere-src-6.7.2/src/client/qwaylandwindow.cpp:1410 #2 0x00007ffff59e9ab5 in QtPrivate::QSlotObjectBase::call (this=0x555555ae6ed0, r=<optimized out>, a=0x7fffffffc2b8) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobjectdefs_impl.h:469 #3 doActivate<false> (sender=0x555555b08c50, signal_index=3, argv=0x7fffffffc2b8) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:4086 #4 0x00007ffff59e9ab5 in QtPrivate::QSlotObjectBase::call (this=0x555555b037e0, r=<optimized out>, a=0x7fffffffc400) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobjectdefs_impl.h:469 #5 doActivate<false> (sender=0x7fffffffcd70, signal_index=9, argv=0x7fffffffc400) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:4086 #6 0x00007ffff59a1857 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7ffff66a1ca0 <QGuiApplication::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffffffc400) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:4146 #7 0x00007ffff5f351b6 in QGuiApplication::screenAdded (this=<optimized out>, _t1=<optimized out>) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2_build/src/gui/Gui_autogen/include/moc_qguiapplication.cpp:421 #8 0x00007ffff5fabb5e in QWindowSystemInterface::handleScreenAdded (platformScreen=<optimized out>, isPrimary=isPrimary@entry=false) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/gui/kernel/qwindowsysteminterface.cpp:727 #9 0x00007ffff4aeeafd in QtWaylandClient::QWaylandDisplay::handleScreenInitialized (this=0x5555555a4d30, screen=<optimized out>, screen@entry=0x7fffdc005e10) at /usr/src/debug/dev-qt/qtwayland-6.7.2/qtwayland-everywhere-src-6.7.2/src/client/qwaylanddisplay.cpp:601 #10 0x00007ffff4aeece3 in QtWaylandClient::QWaylandScreen::maybeInitialize (this=0x7fffdc005e10) at /usr/src/debug/dev-qt/qtwayland-6.7.2/qtwayland-everywhere-src-6.7.2/src/client/qwaylandscreen.cpp:74 #11 QtWaylandClient::QWaylandScreen::maybeInitialize (this=0x7fffdc005e10) at /usr/src/debug/dev-qt/qtwayland-6.7.2/qtwayland-everywhere-src-6.7.2/src/client/qwaylandscreen.cpp:65 #12 0x00007ffff366d38a in ffi_call_unix64 () at /usr/src/debug/dev-libs/libffi-3.4.6/libffi-3.4.6/src/x86/unix64.S:104 #13 0x00007ffff3669481 in ffi_call_int (cif=cif@entry=0x7fffffffc600, fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>, closure=closure@entry=0x0) at /usr/src/debug/dev-libs/libffi-3.4.6/libffi-3.4.6/src/x86/ffi64.c:673 #14 0x00007ffff366c746 in ffi_call (cif=cif@entry=0x7fffffffc600, fn=<optimized out>, rvalue=rvalue@entry=0x0, avalue=avalue@entry=0x7fffffffc6d0) at /usr/src/debug/dev-libs/libffi-3.4.6/libffi-3.4.6/src/x86/ffi64.c:710 #15 0x00007ffff518303f in wl_closure_invoke (closure=closure@entry=0x7fffe00025b0, target=target@entry=0x5555555b24b0, opcode=opcode@entry=2, data=<optimized out>, flags=1) at ../wayland-1.23.0/src/connection.c:1228 #16 0x00007ffff5183889 in dispatch_event (display=display@entry=0x5555555a4f60, queue=queue@entry=0x5555555a5058) at ../wayland-1.23.0/src/wayland-client.c:1670 #17 0x00007ffff5183c63 in dispatch_queue (display=0x5555555a4f60, queue=0x5555555a5058) at ../wayland-1.23.0/src/wayland-client.c:1816 #18 wl_display_dispatch_queue_pending (display=0x5555555a4f60, queue=0x5555555a5058) at ../wayland-1.23.0/src/wayland-client.c:2058 #19 0x00007ffff4adefd5 in QtWaylandClient::EventThread::dispatchQueuePending (this=<optimized out>) at /usr/src/debug/dev-qt/qtwayland-6.7.2/qtwayland-everywhere-src-6.7.2/src/client/qwaylanddisplay.cpp:227 #20 QtWaylandClient::EventThread::readAndDispatchEvents (this=<optimized out>) at /usr/src/debug/dev-qt/qtwayland-6.7.2/qtwayland-everywhere-src-6.7.2/src/client/qwaylanddisplay.cpp:109 #21 QtWaylandClient::EventThread::readAndDispatchEvents (this=<optimized out>) at /usr/src/debug/dev-qt/qtwayland-6.7.2/qtwayland-everywhere-src-6.7.2/src/client/qwaylanddisplay.cpp:94 #22 QtWaylandClient::QWaylandDisplay::flushRequests (this=<optimized out>) at /usr/src/debug/dev-qt/qtwayland-6.7.2/qtwayland-everywhere-src-6.7.2/src/client/qwaylanddisplay.cpp:503 #23 0x00007ffff597d6cb in QObject::event (this=0x5555555a4d30, e=0x7fffe00019f0) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:1452 #24 0x00007ffff6e44535 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5555555a4d30, e=0x7fffe00019f0) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:3287 #25 0x00007ffff5a02658 in QCoreApplication::notifyInternal2 (receiver=0x5555555a4d30, event=0x7fffe00019f0) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1142 #26 0x00007ffff5a0270d 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 #27 0x00007ffff5a2d7fd in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x5555555994c0) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1940 #28 0x00007ffff5a2da6c in QCoreApplication::sendPostedEvents (receiver=<optimized out>, event_type=<optimized out>) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1797 #29 0x00007ffff578b0f7 in postEventSourceDispatch (s=0x5555555a1a70) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qeventdispatcher_glib.cpp:244 #30 0x00007ffff41df335 in g_main_dispatch (context=0x7fffe8000ef0) at ../glib-2.78.6/glib/gmain.c:3476 #31 0x00007ffff424b618 in g_main_context_dispatch_unlocked (context=0x7fffe8000ef0) at ../glib-2.78.6/glib/gmain.c:4284 #32 g_main_context_iterate_unlocked.isra.0 (context=0x7fffe8000ef0, block=<optimized out>, dispatch=1, self=<optimized out>) at ../glib-2.78.6/glib/gmain.c:4349 #33 0x00007ffff41de650 in g_main_context_iteration (context=0x7fffe8000ef0, may_block=1) at ../glib-2.78.6/glib/gmain.c:4414 #34 0x00007ffff5788ee3 in QEventDispatcherGlib::processEvents (this=0x5555555b5a70, flags=...) at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qeventdispatcher_glib.cpp:394 #35 0x00007ffff5a3411a in QEventLoop::exec (this=this@entry=0x7fffffffcc40, 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 #36 0x00007ffff5a34538 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 #37 0x00007ffff5f36590 in QGuiApplication::exec () at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/gui/kernel/qguiapplication.cpp:1926 #38 0x00007ffff6d9f309 in QApplication::exec () at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:2555 #39 0x000055555555def3 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kde-plasma/plasma-workspace-6.1.0/plasma-workspace-6.1.0/krunner/main.cpp:147 In the handleScreensChanged function, newScreen is a null pointer at this point: 1406 void QWaylandWindow::handleScreensChanged() 1407 { 1408 QPlatformScreen *newScreen = calculateScreenFromSurfaceEvents(); 1409 > 1410 if (newScreen->screen() == window()->screen()) 1411 return; 1412 1413 QWindowSystemInterface::handleWindowScreenChanged(window(), newScreen->QPlatformScreen::screen()); 1414 1415 if (fixedToplevelPositions && !QPlatformWindow::parent() && window()->type() != Qt::Popup 1416 && window()->type() != Qt::ToolTip 1417 && geometry().topLeft() != newScreen->geometry().topLeft()) { 1418 auto geometry = this->geometry(); 1419 geometry.moveTo(newScreen->geometry().topLeft()); 1420 setGeometry(geometry); 1421 } 1422 1423 updateScale(); 1424 updateBufferTransform(); 1425 } ... as mSurface->oldestEnteredScreen and QPlatformWindow::screen are both null pointers at that point. Also, (gdb) p mSurface.d->m_screens.d.size $33 = 0 (gdb) ... where mSurface is the member in QWaylandWindow (checked during the execution of QWaylandWindow::calculateScreenFromSurfaceEvents) I re-ran this with WAYLAND_DEBUG=1. Log attached. There might be a long pause in it due to a breakpoint. -- You are receiving this mail because: You are watching all bug changes.
