466689 2023-03-02 01:30:16 +0000 System Settings Crash After Applying Global Theme 2023-03-02 22:38:56 +0000 1 1 2 Applications systemsettings general 5.27.2 Kubuntu Linux RESOLVED DUPLICATE 446111 drkonqi NOR crash --- 0 z_mikowski plasma-bugs-null nate 0 oldest_to_newest 2213165 0 z_mikowski 2023-03-02 01:30:16 +0000 Application: systemsettings (5.27.2) Qt Version: 5.15.3 Frameworks Version: 5.102.0 Operating System: Linux 5.19.0-32-generic x86_64 Windowing System: X11 Distribution: Ubuntu 22.04.2 LTS DrKonqi: 5.27.2 [KCrashBackend] -- Information about the crash: Steps to Reproduce: 1. Open System Settings > Appearance > Global Theme 2. Select a different theme than the current (for this crash, I selected Breeze Dark IIRC) 3. In the "Apply Breeze Dark" dialog, check [x] Appearance settings and [x] Desktop and window layout 4. Click [ Apply ] button Expected Results: 1. Theme should be applied as selected. 2. System settings should not crash. Actual Results: 1. Theme is applied as selected (Good!) 2. System settings crashes (BAD) This behamatches closed bug 458405 which is marked as a duplicate of bug 446111. However, I have been able to reproduce, and the failure mode may vbe different. This is also on Plasma 5.27.2. Frequency: Estimated below 5%. While this crash occured once, I tried 20 additional times using the same system settings instance each time, and it occurred again on the 20th attempt. The detail listed is: Executable: systemsettings PID 50,622 Signal: Segmentation fault (11) Time 3/1/23 5:27 PM The reporter is unsure if this crash is reproducible. -- Backtrace: Application: System Settings (systemsettings), signal: Segmentation fault [KCrash Handler] #4 0x00007fc7c2e7df00 in QQuickWindowPrivate::sendFilteredPointerEventImpl(QQuickPointerEvent*, QQuickItem*, QQuickItem*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #5 0x00007fc7c2e7de19 in QQuickWindowPrivate::sendFilteredPointerEventImpl(QQuickPointerEvent*, QQuickItem*, QQuickItem*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #6 0x00007fc7c2e7de19 in QQuickWindowPrivate::sendFilteredPointerEventImpl(QQuickPointerEvent*, QQuickItem*, QQuickItem*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007fc7c2e7de19 in QQuickWindowPrivate::sendFilteredPointerEventImpl(QQuickPointerEvent*, QQuickItem*, QQuickItem*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #8 0x00007fc7c2e7ebde in QQuickWindowPrivate::deliverToPassiveGrabbers(QVector<QPointer<QQuickPointerHandler> > const&, QQuickPointerEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #9 0x00007fc7c2e84ed5 in QQuickWindowPrivate::deliverMouseEvent(QQuickPointerMouseEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #10 0x00007fc7c2e8665f in QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #11 0x00007fc7c4f4d5a5 in QWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #12 0x00007fc7c576c713 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #13 0x00007fc7c4ab9e3a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #14 0x00007fc7c39470ab in QQuickWidget::mouseReleaseEvent(QMouseEvent*) () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5 #15 0x00007fc7c57af4ee in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #16 0x00007fc7c576c713 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007fc7c5774364 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #18 0x00007fc7c4ab9e3a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #19 0x00007fc7c5772e47 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #20 0x00007fc7c57c8d40 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #21 0x00007fc7c57cbfd5 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #22 0x00007fc7c576c713 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #23 0x00007fc7c4ab9e3a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #24 0x00007fc7c4f41307 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #25 0x00007fc7c4f16a2c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #26 0x00007fc7bf0f8d6e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #27 0x00007fc7c3320d3b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #28 0x00007fc7c33756c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #29 0x00007fc7c331e3e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #30 0x00007fc7c4b130b8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #31 0x00007fc7c4ab875b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #32 0x00007fc7c4ac0cf4 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #33 0x000055bfc47ce5f6 in ?? () #34 0x00007fc7c4029d90 in __libc_start_call_main (main=main@entry=0x55bfc47cdaa0, argc=argc@entry=1, argv=argv@entry=0x7fff5abf20b8) at ../sysdeps/nptl/libc_start_call_main.h:58 #35 0x00007fc7c4029e40 in __libc_start_main_impl (main=0x55bfc47cdaa0, argc=1, argv=0x7fff5abf20b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5abf20a8) at ../csu/libc-start.c:392 #36 0x000055bfc47cef85 in ?? () [Inferior 1 (process 46421) detached] Reported using DrKonqi 2213432 1 nate 2023-03-02 20:30:23 +0000 The backtrace is identical to the one in Bug 446111, which was fixed with a backported patch in the KDE Qt patch collection. I see that you're using: "Qt Version: 5.15.3" which is rather old at this point and definitely doesn't have it. I recommend upgrading to 5.15.8 + the KDE patches. Hopefully that'll fix it. *** This bug has been marked as a duplicate of bug 446111 *** 2213485 2 z_mikowski 2023-03-02 22:25:23 +0000 Thank you Nate! > I recommend upgrading to 5.15.8 + the KDE patches. Agreed. Please point me to a document on how to do this if you know one exists. I looked around for a few minutes, and didn't easily find anything. 2213488 3 nate 2023-03-02 22:38:56 +0000 See https://community.kde.org/Qt5PatchCollection which should have some info in there about it.