372817 2016-11-23 00:48:51 +0000 Kwin crashes when System Settings are opened 2016-11-23 02:59:17 +0000 1 1 4 Plasma kwin general 5.8.4 Arch Linux Linux RESOLVED DUPLICATE 361236 drkonqi NOR crash --- 0 andrew.lamarra kwin-bugs-null 0 oldest_to_newest 1641294 0 andrew.lamarra 2016-11-23 00:48:51 +0000 Application: kwin_x11 (5.8.4) Qt Version: 5.7.0 Frameworks Version: 5.28.0 Operating System: Linux 4.8.10-1-ARCH x86_64 Distribution: "Arch Linux" -- Information about the crash: - What I was doing when the application crashed: Sometimes Kwin will crash when I open System Settings from the Application Menu. Sometimes it'll crash when I open a specific setting. But not always... The crash can be reproduced sometimes. -- Backtrace: Application: KWin (kwin_x11), signal: Segmentation fault Using host libthread_db library "/usr/lib/libthread_db.so.1". [Current thread is 1 (Thread 0x7f23f631a840 (LWP 816))] Thread 6 (Thread 0x7f23d3fff700 (LWP 1345)): #0 0x00007f23f5d58551 in ppoll () at /usr/lib/libc.so.6 #1 0x00007f23f3405ac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f23f34073b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #3 0x00007f23f33b423a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007f23f31d70f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f23edd4d2d5 in () at /usr/lib/libQt5Qml.so.5 #6 0x00007f23f31dbd78 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f23eefef454 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007f23f5d617df in clone () at /usr/lib/libc.so.6 Thread 5 (Thread 0x7f23be779700 (LWP 923)): #0 0x00007f23eeff510f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0 #1 0x00007f23f234bac4 in () at /usr/lib/libQt5Script.so.5 #2 0x00007f23f234bb09 in () at /usr/lib/libQt5Script.so.5 #3 0x00007f23eefef454 in start_thread () at /usr/lib/libpthread.so.0 #4 0x00007f23f5d617df in clone () at /usr/lib/libc.so.6 Thread 4 (Thread 0x7f23d35de700 (LWP 913)): #0 0x00007f23f5d58551 in ppoll () at /usr/lib/libc.so.6 #1 0x00007f23f3405ac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f23f34073b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #3 0x00007f23f33b423a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007f23f31d70f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f23edd4d2d5 in () at /usr/lib/libQt5Qml.so.5 #6 0x00007f23f31dbd78 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f23eefef454 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007f23f5d617df in clone () at /usr/lib/libc.so.6 Thread 3 (Thread 0x7f23d9d8c700 (LWP 864)): #0 0x00007f23f5d58551 in ppoll () at /usr/lib/libc.so.6 #1 0x00007f23f3405ac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f23f34073b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #3 0x00007f23f33b423a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #4 0x00007f23f31d70f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f23ecf17e55 in () at /usr/lib/libQt5DBus.so.5 #6 0x00007f23f31dbd78 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f23eefef454 in start_thread () at /usr/lib/libpthread.so.0 #8 0x00007f23f5d617df in clone () at /usr/lib/libc.so.6 Thread 2 (Thread 0x7f23dbcad700 (LWP 843)): #0 0x00007f23f5d5848d in poll () at /usr/lib/libc.so.6 #1 0x00007f23f4e988e0 in () at /usr/lib/libxcb.so.1 #2 0x00007f23f4e9a679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1 #3 0x00007f23dc759449 in () at /usr/lib/libQt5XcbQpa.so.5 #4 0x00007f23f31dbd78 in () at /usr/lib/libQt5Core.so.5 #5 0x00007f23eefef454 in start_thread () at /usr/lib/libpthread.so.0 #6 0x00007f23f5d617df in clone () at /usr/lib/libc.so.6 Thread 1 (Thread 0x7f23f631a840 (LWP 816)): [KCrash Handler] #6 0x00007f23edd38810 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib/libQt5Qml.so.5 #7 0x00007f23edd39775 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib/libQt5Qml.so.5 #8 0x00007f23edd43405 in () at /usr/lib/libQt5Qml.so.5 #9 0x00007f23edccc27e in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /usr/lib/libQt5Qml.so.5 #10 0x00007f23edccc347 in QQmlComponentPrivate::completeCreate() () at /usr/lib/libQt5Qml.so.5 #11 0x00007f23edccc1b0 in QQmlComponent::create(QQmlContext*) () at /usr/lib/libQt5Qml.so.5 #12 0x00007f23d80a3cfd in () at /usr/lib/qt/plugins/org.kde.kdecoration2/kwin5_aurorae.so #13 0x00007f23f597661a in () at /usr/lib/libkwin.so.5 #14 0x00007f23f583d7b2 in KWin::Client::createDecoration(QRect const&) () at /usr/lib/libkwin.so.5 #15 0x00007f23f583e416 in KWin::Client::updateDecoration(bool, bool) () at /usr/lib/libkwin.so.5 #16 0x00007f23f58a8b4d in KWin::Client::manage(unsigned int, bool) () at /usr/lib/libkwin.so.5 #17 0x00007f23f581ee14 in KWin::Workspace::createClient(unsigned int, bool) () at /usr/lib/libkwin.so.5 #18 0x00007f23f58927f9 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () at /usr/lib/libkwin.so.5 #19 0x00007f23f33b337f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib/libQt5Core.so.5 #20 0x00007f23dc75ac14 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib/libQt5XcbQpa.so.5 #21 0x00007f23dc75b8a5 in QXcbConnection::processXcbEvents() () at /usr/lib/libQt5XcbQpa.so.5 #22 0x00007f23f33e24b9 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5 #23 0x00007f23f4095e0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #24 0x00007f23f409d581 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #25 0x00007f23f33b5de0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5 #26 0x00007f23f33b856d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5 #27 0x00007f23f34071fa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #28 0x00007f23dc7d20dd in () at /usr/lib/libQt5XcbQpa.so.5 #29 0x00007f23f33b423a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #30 0x00007f23f33bc73c in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5 #31 0x00007f23f6020495 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so #32 0x00007f23f5c99291 in __libc_start_main () at /usr/lib/libc.so.6 #33 0x000000000040069a in _start () Reported using DrKonqi 1641300 1 cfeck 2016-11-23 02:59:17 +0000 This might be fixed with Qt 5.7.1 or Qt 5.6.2. As a workaround, use Breeze decoration. *** This bug has been marked as a duplicate of bug 361236 ***