Application: kwin_x11 (5.8.5)

Qt Version: 5.6.2
Frameworks Version: 5.29.0
Operating System: Linux 4.8.16-200.fc24.x86_64 x86_64
Distribution: "Fedora release 24 (Twenty Four)"

-- Information about the crash:
- What I was doing when the application crashed:
I rebooted the system (4.8.16-200.fc24.x86_64), entered userid/passwd, and the environment came up.  I then open 3 terminals. Everything was still good.  Finally, I opened KSysGuard from the KMenu and then Kwin crashed.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff917476940 (LWP 2706))]

Thread 6 (Thread 0x7ff90cf76700 (LWP 3181)):
#0  0x00007ff92750b343 in select () at /lib64/libc.so.6
#1  0x00007ff92830cbcf in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /lib64/libQt5Core.so.5
#2  0x00007ff92830e2c4 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /lib64/libQt5Core.so.5
#3  0x00007ff92830e7fa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007ff9282bf81a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007ff92811e353 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007ff92ee77525 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007ff9281229ba in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007ff92a3a65ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff9275150ed in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7ff8fe7fd700 (LWP 2841)):
#0  0x00007ff92a3abbd0 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007ff92fc241a4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007ff92fc241e9 in  () at /lib64/libQt5Script.so.5
#3  0x00007ff92a3a65ca in start_thread () at /lib64/libpthread.so.0
#4  0x00007ff9275150ed in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7ff8fffff700 (LWP 2792)):
#0  0x00007ff92750b343 in select () at /lib64/libc.so.6
#1  0x00007ff92830cbcf in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /lib64/libQt5Core.so.5
#2  0x00007ff92830e2c4 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /lib64/libQt5Core.so.5
#3  0x00007ff92830e7fa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007ff9282bf81a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007ff92811e353 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007ff92ee77525 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007ff9281229ba in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007ff92a3a65ca in start_thread () at /lib64/libpthread.so.0
#9  0x00007ff9275150ed in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7ff90e7ce700 (LWP 2740)):
#0  0x00007ffd01eb4947 in  ()
#1  0x00007ffd01eb4bd9 in clock_gettime ()
#2  0x00007ff9275236f6 in clock_gettime () at /lib64/libc.so.6
#3  0x00007ff9281beda3 in qt_gettime() () at /lib64/libQt5Core.so.5
#4  0x00007ff92830ed59 in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#5  0x00007ff92830f155 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#6  0x00007ff92830e79a in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007ff9282bf81a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#8  0x00007ff92811e353 in QThread::exec() () at /lib64/libQt5Core.so.5
#9  0x00007ff929ea2559 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#10 0x00007ff9281229ba in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#11 0x00007ff92a3a65ca in start_thread () at /lib64/libpthread.so.0
#12 0x00007ff9275150ed in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7ff90fe91700 (LWP 2733)):
#0  0x00007ff92750956d in poll () at /lib64/libc.so.6
#1  0x00007ff929c73f80 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007ff929c75b79 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007ff910b3ff99 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007ff9281229ba in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007ff92a3a65ca in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff9275150ed in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7ff917476940 (LWP 2706)):
[KCrash Handler]
#6  0x00007ff92ee62c10 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /lib64/libQt5Qml.so.5
#7  0x00007ff92ee63967 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /lib64/libQt5Qml.so.5
#8  0x00007ff92ee6d105 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /lib64/libQt5Qml.so.5
#9  0x00007ff92edf717e in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /lib64/libQt5Qml.so.5
#10 0x00007ff92edf7247 in QQmlComponentPrivate::completeCreate() () at /lib64/libQt5Qml.so.5
#11 0x00007ff92edf70b0 in QQmlComponent::create(QQmlContext*) () at /lib64/libQt5Qml.so.5
#12 0x00007ff90c411987 in Aurorae::Decoration::init() () at /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007ff930641459 in KWin::Decoration::DecorationBridge::createDecoration(KWin::AbstractClient*) () at /lib64/libkwin.so.5
#14 0x00007ff930520ea2 in KWin::Client::createDecoration(QRect const&) () at /lib64/libkwin.so.5
#15 0x00007ff930521a8d in KWin::Client::updateDecoration(bool, bool) () at /lib64/libkwin.so.5
#16 0x00007ff930580aa5 in KWin::Client::manage(unsigned int, bool) () at /lib64/libkwin.so.5
#17 0x00007ff930503284 in KWin::Workspace::createClient(unsigned int, bool) () at /lib64/libkwin.so.5
#18 0x00007ff93056ddec in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () at /lib64/libkwin.so.5
#19 0x00007ff9282be8cc in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /lib64/libQt5Core.so.5
#20 0x00007ff910b41965 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /lib64/libQt5XcbQpa.so.5
#21 0x00007ff910b4294b in QXcbConnection::processXcbEvents() () at /lib64/libQt5XcbQpa.so.5
#22 0x00007ff9282e9e19 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#23 0x00007ff928b4ee4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#24 0x00007ff928b5432f in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#25 0x00007ff9282c09da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#26 0x00007ff9282c2a8f in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#27 0x00007ff92830e6d2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#28 0x00007ff910bb51ad in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5XcbQpa.so.5
#29 0x00007ff9282bf81a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#30 0x00007ff9282c73bc in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#31 0x00007ff9309450c6 in kdemain () at /lib64/libkdeinit5_kwin_x11.so
#32 0x00007ff927432731 in __libc_start_main () at /lib64/libc.so.6
#33 0x000055c348f4fce9 in _start ()

Possible duplicates by query: bug 374681, bug 374491, bug 374129, bug 374100, bug 374002.

Reported using DrKonqi