397367 2018-08-11 09:34:06 +0000 segmentation fault on gitunstable when changing between tabs in system settings 2018-08-24 07:49:15 +0000 1 1 2 Applications systemsettings general unspecified Neon Linux RESOLVED FIXED drkonqi NOR crash --- 0 brentonhorne77 plasma-bugs-null ethanarm juanmgeo kde loic.grobol https://commits.kde.org/kdeclarative/be68566c38aeca3d53e29cab82865f9d579505d1 0 oldest_to_newest 1771394 0 brentonhorne77 2018-08-11 09:34:06 +0000 Application: systemsettings5 (5.13.80) Qt Version: 5.11.1 Frameworks Version: 5.49.0 Operating System: Linux 4.15.0-30-generic x86_64 Distribution: KDE neon Developer Edition -- Information about the crash: - What I was doing when the application crashed: I was changing between tabs in system settings. It does not always trigger a crash but still it usually doesn't take long for a crash to occur when continually changing tabs in system settings. Specifically I was tweaking aesthetics in it (e.g. window decorations, icons, plasma theme, etc.). The crash can be reproduced every time. -- Backtrace: Application: System Settings (systemsettings5), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7fdb5a066840 (LWP 7520))] Thread 6 (Thread 0x7fdb1f90c700 (LWP 7527)): #0 0x00007fdb55fa697e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x00007fdb4e9c1998 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fdb4e9c236b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fdb4e9c254c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007fdb55fa6a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fdb55f4adea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fdb55d75b8a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007fdb53a748b5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #8 0x00007fdb55d80aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007fdb50d806db in start_thread (arg=0x7fdb1f90c700) at pthread_create.c:463 #10 0x00007fdb5567388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7fdb27126700 (LWP 7526)): #0 0x00007fdb55666bf9 in __GI___poll (fds=0x7fdb20003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007fdb4e9c2439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fdb4e9c254c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fdb55fa6a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fdb55f4adea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fdb55d75b8a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fdb53a748b5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007fdb55d80aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fdb50d806db in start_thread (arg=0x7fdb27126700) at pthread_create.c:463 #9 0x00007fdb5567388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7fdb2ef1d700 (LWP 7525)): #0 0x00007fdb55666bf9 in __GI___poll (fds=0x7fdb28004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007fdb4e9c2439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fdb4e9c254c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fdb55fa6a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fdb55f4adea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fdb55d75b8a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fdb53a748b5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007fdb55d80aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fdb50d806db in start_thread (arg=0x7fdb2ef1d700) at pthread_create.c:463 #9 0x00007fdb5567388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7fdb3d1ce700 (LWP 7523)): #0 0x00007fdb4ea07cd9 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007fdb4e9c19a3 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fdb4e9c236b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fdb4e9c254c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007fdb55fa6a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fdb55f4adea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fdb55d75b8a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007fdb563eee45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #8 0x00007fdb55d80aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007fdb50d806db in start_thread (arg=0x7fdb3d1ce700) at pthread_create.c:463 #10 0x00007fdb5567388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7fdb469ad700 (LWP 7522)): #0 0x00007fdb55666bf9 in __GI___poll (fds=0x7fdb469acc68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007fdb50944747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007fdb5094636a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007fdb49344129 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #4 0x00007fdb55d80aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fdb50d806db in start_thread (arg=0x7fdb469ad700) at pthread_create.c:463 #6 0x00007fdb5567388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7fdb5a066840 (LWP 7520)): [KCrash Handler] #6 0x00007fdb53fc6691 in QQuickWindow::mouseGrabberItem() const () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007fdb53fc87a7 in QQuickWindowPrivate::removeGrabber(QQuickItem*, bool, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #8 0x00007fdb53fb5ad0 in QQuickItemPrivate::derefWindow() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #9 0x00007fdb53fb6047 in QQuickItem::setParentItem(QQuickItem*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #10 0x00007fdb53fb7a6c in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #11 0x00007fdb27b9719d in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Templates.2/libqtquicktemplates2plugin.so #12 0x00007fdb55f7c660 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #13 0x00007fdb53fb4aeb in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #14 0x00007fdb56f68e8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #15 0x00007fdb56f7045f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #16 0x00007fdb55f4cab8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #17 0x00007fdb55f4f5fd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #18 0x00007fdb55fa7453 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #19 0x00007fdb4e9c2287 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #20 0x00007fdb4e9c24c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #21 0x00007fdb4e9c254c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #22 0x00007fdb55fa6a7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #23 0x00007fdb493ceed1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #24 0x00007fdb55f4adea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #25 0x00007fdb55f53fa0 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #26 0x0000555b4ae6de69 in ?? () #27 0x00007fdb55573b97 in __libc_start_main (main=0x555b4ae6da80, argc=1, argv=0x7ffc4fc504f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc4fc504e8) at ../csu/libc-start.c:310 #28 0x0000555b4ae6deea in _start () Reported using DrKonqi 1771406 1 kde 2018-08-11 10:29:08 +0000 I haven't seen the same crash happened to me when switching between modules in System Settings, eg. going from widget style to look and feel kcms. 1771412 2 brentonhorne77 2018-08-11 10:56:10 +0000 For me it doesn't happen instantly. If I tweak the settings and switch between tabs a few times it happens. 1772388 3 kde 2018-08-17 12:03:20 +0000 *** Bug 397547 has been marked as a duplicate of this bug. *** 1773727 4 kde 2018-08-23 09:09:33 +0000 *** Bug 397772 has been marked as a duplicate of this bug. *** 1773731 5 kde 2018-08-23 09:28:03 +0000 Git commit be68566c38aeca3d53e29cab82865f9d579505d1 by Kai Uwe Broulik. Committed on 23/08/2018 at 09:27. Pushed by broulik into branch 'master'. Attach property to "delegate" Otherwise crashes when switching between KCMs Differential Revision: https://phabricator.kde.org/D15017 M +2 -1 src/qmlcontrols/kcmcontrols/qml/GridDelegate.qml https://commits.kde.org/kdeclarative/be68566c38aeca3d53e29cab82865f9d579505d1 1773916 6 kde 2018-08-24 07:49:15 +0000 *** Bug 397807 has been marked as a duplicate of this bug. ***