Application: systemsettings5 (5.5.5) Qt Version: 5.5.1 Operating System: Linux 4.4.0-31-generic i686 Distribution: Ubuntu 16.04.1 LTS -- Information about the crash: - What I was doing when the application crashed: - Unusual behavior I noticed: I was just cheking the system settings, then it crashed . The whole window freezed and then the crashed message was shown -- Backtrace: Application: System Settings (systemsettings5), signal: Segmentation fault Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0xb2525800 (LWP 2875))] Thread 5 (Thread 0xab8d3b40 (LWP 2901)): #0 0xb77cec31 in __kernel_vsyscall () #1 0xb5d30f8f in poll () at ../sysdeps/unix/syscall-template.S:84 #2 0xb4ae2b10 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0 #3 0xb4ad410c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #4 0xb4ad4529 in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0 #5 0xa4279955 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0 #6 0xb4afb00a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #7 0xb4c1c2b5 in start_thread (arg=0xab8d3b40) at pthread_create.c:333 #8 0xb5d3b16e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114 Thread 4 (Thread 0x95c61b40 (LWP 2900)): #0 0xb77cec31 in __kernel_vsyscall () #1 0xb5d30f8f in poll () at ../sysdeps/unix/syscall-template.S:84 #2 0xb4ae2b10 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0 #3 0xb4ad410c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #4 0xb4ad4244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0 #5 0xb4ad42a0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #6 0xb4afb00a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #7 0xb4c1c2b5 in start_thread (arg=0x95c61b40) at pthread_create.c:333 #8 0xb5d3b16e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114 Thread 3 (Thread 0x9c487b40 (LWP 2899)): #0 0xb4b1a48d in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0 #1 0xb4ad3adc in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0 #2 0xb4ad40a1 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #3 0xb4ad4244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0 #4 0xb623cb14 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #5 0xb61e1953 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #6 0xb61e1daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #7 0xb6007f1d in QThread::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #8 0xb54cfaff in ?? () from /usr/lib/i386-linux-gnu/libQt5Qml.so.5 #9 0xb600d43b in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #10 0xb4c1c2b5 in start_thread (arg=0x9c487b40) at pthread_create.c:333 #11 0xb5d3b16e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114 Thread 2 (Thread 0xb20e8b40 (LWP 2876)): #0 0xb77cec31 in __kernel_vsyscall () #1 0xb5d30f8f in poll () at ../sysdeps/unix/syscall-template.S:84 #2 0xb4c9641d in ?? () from /usr/lib/i386-linux-gnu/libxcb.so.1 #3 0xb4c9859b in xcb_wait_for_event () from /usr/lib/i386-linux-gnu/libxcb.so.1 #4 0xb222e273 in ?? () from /usr/lib/i386-linux-gnu/libQt5XcbQpa.so.5 #5 0xb600d43b in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #6 0xb4c1c2b5 in start_thread (arg=0xb20e8b40) at pthread_create.c:333 #7 0xb5d3b16e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114 Thread 1 (Thread 0xb2525800 (LWP 2875)): [KCrash Handler] #7 0x00000000 in ?? () #8 0xb621855f in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #9 0xaedfb55c in KParts::PartManager::~PartManager() () from /usr/lib/i386-linux-gnu/libKF5Parts.so.5 #10 0xaedfb74a in KParts::PartManager::~PartManager() () from /usr/lib/i386-linux-gnu/libKF5Parts.so.5 #11 0xb6212970 in QObjectPrivate::deleteChildren() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #12 0xb621bf4c in QObject::~QObject() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #13 0xaedf35b8 in KParts::Part::~Part() () from /usr/lib/i386-linux-gnu/libKF5Parts.so.5 #14 0xaedf518e in KParts::ReadOnlyPart::~ReadOnlyPart() () from /usr/lib/i386-linux-gnu/libKF5Parts.so.5 #15 0xaf03ccb1 in KHTMLPart::~KHTMLPart() () from /usr/lib/i386-linux-gnu/libKF5KHtml.so.5 #16 0xaf03cdfa in KHTMLPart::~KHTMLPart() () from /usr/lib/i386-linux-gnu/libKF5KHtml.so.5 #17 0xb62135d4 in qDeleteInEventHandler(QObject*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #18 0xb6215269 in QObject::event(QEvent*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #19 0xb6d6815a in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQt5Widgets.so.5 #20 0xb6d6d81c in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQt5Widgets.so.5 #21 0xb61e481f in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #22 0xb61e6eff in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #23 0xb61e73e7 in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #24 0xb623c703 in ?? () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #25 0xb4ad3ed9 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0 #26 0xb4ad4179 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #27 0xb4ad4244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0 #28 0xb623caf3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #29 0xb2263a81 in ?? () from /usr/lib/i386-linux-gnu/libQt5XcbQpa.so.5 #30 0xb61e1953 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #31 0xb61e1daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #32 0xb61ea385 in QCoreApplication::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5 #33 0xb67a9931 in QGuiApplication::exec() () from /usr/lib/i386-linux-gnu/sse2/libQt5Gui.so.5 #34 0xb6d64024 in QApplication::exec() () from /usr/lib/i386-linux-gnu/libQt5Widgets.so.5 #35 0x08053fc0 in main () Possible duplicates by query: bug 368230, bug 367884, bug 366515, bug 366489, bug 364754. Reported using DrKonqi
I 've had similar behaviour in kubuntu 16.04 Crashes happened when navigating in system settings in workspace theme tab and desktop behaviour tab. But I couldnt reproduce it in kubuntu 16.10 , system settings version 5.7.5 Kubuntu 16.10 KDE Plasma Version : 5.7.5 KDE Frameworks Version : 5.26.0 Qt Version : 5.6.1 Kernel Version : 4.8.0-22-generic OS Type: 64-bit
Alexey, your crash is likely unrelated. Please report it separately with your backtrace. *** This bug has been marked as a duplicate of bug 355711 ***