https://bugs.kde.org/show_bug.cgi?id=501588
--- Comment #3 from bugs...@haug.wtf --- |Ahm, I'm not into KDE nor Qt. This info was gathered by a tool. Looking at the sources @ qt.io (https://code.qt.io/cgit/qt/qtbase.git/tree/src/plugins/platforms/xcb/qxcbscreen.h?h=6.8.2), that's the first frames of the callstack. Bug |499383 seems in a different code area. |1: xcb_screen_t *screen() const { return m_screen; } ||2: xcb_screen_t *screen() const { return m_virtualDesktop->screen(); } ||3: xcb_window_t root() const { return screen()->root; } ||4: auto reply = Q_XCB_REPLY(xcb_translate_coordinates, xcb_connection(), xcb_window(), xcbScreen()->root(), 0, 0); 5: | |case XCB_FOCUS_OUT: HANDLE_PLATFORM_WINDOW_EVENT(xcb_focus_out_event_t, event, handleFocusOutEvent);||..... A segmentation fault at (1) is most likely due to a crab ||QXcbScreen::|/|m_virtualDesktop|/ |pointer. S.b. wants to handle an event while ||/QXcbScreen/'s ||virtual desktop is gone. M.b. also the QXcbScreen instance is already deleted at this time. That could be because desktop configuration was being changed in that moment because I closed the laptop lid and thus the laptop screen was deactivated. At some higher level of the callstack, events need to be stopped before deleting ||the virtual desktop||||| On 17.03.25 20:18, Nate Graham wrote: > https://bugs.kde.org/show_bug.cgi?id=501588 > > Nate Graham<n...@kde.org> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > Summary|Plasmashell crashed after |On X11, Plasmashell crashed > |closing laptop lid right |after closing laptop lid > |after login. |right after login > Keywords| |X11-only > CC| |n...@kde.org > > --- Comment #2 from Nate Graham<n...@kde.org> --- > Thread 1 (Thread 0x7f0ea106dd80 (LWP 3165)): > [KCrash Handler] > #5 0x00007f0e93196898 in QXcbVirtualDesktop::screen (this=<optimized out>) at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/plugins/platforms/xcb/qxcbscreen.h:38 > #6 QXcbScreen::screen (this=<optimized out>) at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/plugins/platforms/xcb/qxcbscreen.h:152 > #7 QXcbScreen::root (this=<optimized out>) at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/plugins/platforms/xcb/qxcbscreen.h:153 > #8 QXcbWindow::handleConfigureNotifyEvent (this=0x55c6bb1bb760, > event=0x7f0e8400d860) at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/plugins/platforms/xcb/qxcbwindow.cpp:1815 > #9 0x00007f0e93156058 in QXcbConnection::handleXcbEvent > (this=this@entry=0x55c6b8c35fa0, event=event@entry=0x7f0e8400d860) at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/plugins/platforms/xcb/qxcbconnection.cpp:634 > #10 0x00007f0e93157407 in QXcbConnection::processXcbEvents > (this=0x55c6b8c35fa0, flags=...) at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/plugins/platforms/xcb/qxcbconnection.cpp:1086 > #11 0x00007f0e931788ff in xcbSourceDispatch (source=<optimized out>) at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/plugins/platforms/xcb/qxcbeventdispatcher.cpp:55 > #12 0x00007f0ea61b428c in g_main_dispatch (context=0x7f0e8c000f00) at > ../glib/gmain.c:3357 > #13 g_main_context_dispatch_unlocked (context=0x7f0e8c000f00) at > ../glib/gmain.c:4208 > #14 0x00007f0ea62147b8 in g_main_context_iterate_unlocked.isra.0 > (context=context@entry=0x7f0e8c000f00, block=block@entry=1, > dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4273 > #15 0x00007f0ea61b5783 in g_main_context_iteration (context=0x7f0e8c000f00, > may_block=1) at ../glib/gmain.c:4338 > #16 0x00007f0ea79ef2b3 in QEventDispatcherGlib::processEvents > (this=0x55c6b8cb0820, flags=...) at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:399 > #17 0x00007f0ea7700993 in QEventLoop::exec (this=this@entry=0x7ffd9e6dccd0, > flags=..., flags@entry=...) at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/global/qflags.h:34 > #18 0x00007f0ea76fbf6e in QCoreApplication::exec () at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/corelib/global/qflags.h:74 > #19 0x00007f0ea7ed7d3d in QGuiApplication::exec () at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/gui/kernel/qguiapplication.cpp:1975 > #20 0x00007f0ea9a3d929 in QApplication::exec () at > /usr/src/debug/qt6-qtbase-6.8.2-3.fc41.x86_64/src/widgets/kernel/qapplication.cpp:2564 > #21 0x000055c6878f32fe in main (argc=<optimized out>, argv=<optimized out>) at > /usr/src/debug/plasma-workspace-6.3.2-1.fc41.x86_64/shell/main.cpp:191 > > Not seeing any KDE code in the backtrace; could be a Qt issue. Maybe it's the > X11 equivalent of Bug 499383? > -- You are receiving this mail because: You are watching all bug changes.
