Bug 366126

Application: kwin_x11 (5.7.1)

Qt Version: 5.6.1
Frameworks Version: 5.24.0
Operating System: Linux 4.6.4-201.fc23.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
On my secondary monitor I tried to add a new panel, because it disappeared after kde update

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 0x7f2b9568e940 (LWP 1768))]

Thread 6 (Thread 0x7f2b8e031700 (LWP 1820)):
#0  0x00007f2ba5b99b1d in poll () from /lib64/libc.so.6
#1  0x00007f2ba82ef272 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007f2ba82f0ee7 in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f2b8eadd039 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007f2ba67a400c in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f2ba8a1861a in start_thread () from /lib64/libpthread.so.0
#6  0x00007f2ba5ba559d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f2b8c93d700 (LWP 1833)):
#0  0x00007f2ba5b9b8a3 in select () from /lib64/libc.so.6
#1  0x00007f2ba698b03f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007f2ba698c6ee in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib64/libQt5Core.so.5
#3  0x00007f2ba698cc02 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f2ba693f25a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f2ba679fbd4 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f2ba851c675 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#7  0x00007f2ba67a400c in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f2ba8a1861a in start_thread () from /lib64/libpthread.so.0
#9  0x00007f2ba5ba559d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f2b8670c700 (LWP 1887)):
#0  0x00007f2ba5b9b8a3 in select () from /lib64/libc.so.6
#1  0x00007f2ba698b03f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007f2ba698c6ee in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib64/libQt5Core.so.5
#3  0x00007f2ba698cc02 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f2ba693f25a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f2ba679fbd4 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f2bad6ac7f5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f2ba67a400c in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f2ba8a1861a in start_thread () from /lib64/libpthread.so.0
#9  0x00007f2ba5ba559d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f2b7a879700 (LWP 1947)):
#0  0x00007f2ba8a1db20 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f2bae45b2e4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007f2bae45b329 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007f2ba8a1861a in start_thread () from /lib64/libpthread.so.0
#4  0x00007f2ba5ba559d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f2aee866700 (LWP 2325)):
#0  0x00007f2ba5b9b8a3 in select () from /lib64/libc.so.6
#1  0x00007f2ba698b03f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007f2ba698c6ee in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib64/libQt5Core.so.5
#3  0x00007f2ba698cc02 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f2ba693f25a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f2ba679fbd4 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f2bad6ac7f5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f2ba67a400c in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f2ba8a1861a in start_thread () from /lib64/libpthread.so.0
#9  0x00007f2ba5ba559d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f2b9568e940 (LWP 1768)):
[KCrash Handler]
#6  0x00007f2bad698739 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () from /lib64/libQt5Qml.so.5
#7  0x00007f2bad69964a in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () from /lib64/libQt5Qml.so.5
#8  0x00007f2bad6a296f in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () from /lib64/libQt5Qml.so.5
#9  0x00007f2bad62f36e in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () from /lib64/libQt5Qml.so.5
#10 0x00007f2bad62f437 in QQmlComponentPrivate::completeCreate() () from /lib64/libQt5Qml.so.5
#11 0x00007f2bad62f2a0 in QQmlComponent::create(QQmlContext*) () from /lib64/libQt5Qml.so.5
#12 0x00007f2b8672b187 in Aurorae::Decoration::init() () from /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007f2baee66431 in KWin::Decoration::DecorationBridge::createDecoration(KWin::AbstractClient*) () from /lib64/libkwin.so.5
#14 0x00007f2baed4ee59 in KWin::Client::createDecoration(QRect const&) () from /lib64/libkwin.so.5
#15 0x00007f2baed4f813 in KWin::Client::updateDecoration(bool, bool) () from /lib64/libkwin.so.5
#16 0x00007f2baedab401 in KWin::Client::manage(unsigned int, bool) () from /lib64/libkwin.so.5
#17 0x00007f2baed32aef in KWin::Workspace::createClient(unsigned int, bool) () from /lib64/libkwin.so.5
#18 0x00007f2baed98df4 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () from /lib64/libkwin.so.5
#19 0x00007f2ba693e33c in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /lib64/libQt5Core.so.5
#20 0x00007f2b8eae0fb5 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /lib64/libQt5XcbQpa.so.5
#21 0x00007f2b8eae1f16 in QXcbConnection::processXcbEvents() () from /lib64/libQt5XcbQpa.so.5
#22 0x00007f2ba6968871 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#23 0x00007f2ba71d010c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#24 0x00007f2ba71d5646 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#25 0x00007f2ba69403ea in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#26 0x00007f2ba694240a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#27 0x00007f2ba698cae2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#28 0x00007f2b8eb50fdd in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5XcbQpa.so.5
#29 0x00007f2ba693f25a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#30 0x00007f2ba6946bdc in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#31 0x00007f2baf15f636 in kdemain () from /lib64/libkdeinit5_kwin_x11.so
#32 0x00007f2ba5ac3580 in __libc_start_main () from /lib64/libc.so.6
#33 0x000055fd3ff80d49 in _start ()

Possible duplicates by query: bug 366097, bug 366096, bug 365988, bug 365896, bug 365842.

Reported using DrKonqi