Bug 369591

Application: kwin_x11 (5.7.4)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.7.0-1-amd64 x86_64
Distribution: Debian GNU/Linux stable-updates (sid)

-- Information about the crash:
- What I was doing when the application crashed:
after downloading the system doesn't connect to a Wi Fi access point produces a cyclic request of the password of the access point without any further connection. after several attempts to connect you receive an error message, and the wonderful overview you are connecting to the access point.
- Custom settings of the application:

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc4506ac940 (LWP 1080))]

Thread 6 (Thread 0x7fc423fff700 (LWP 1591)):
#0  0x00007fc4501c719f in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fc4501b3245 in select () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fc44e038d3f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fc44e03a7e4 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc44e03acfa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc44dfe519a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc44de0ae53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc448898a55 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fc44de0fd78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc44973a464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fc4501ba97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7fc4237fe700 (LWP 1120)):
#0  0x00007fc44974018f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fc44d1a9574 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fc44d1a95b9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fc44973a464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fc4501ba97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7fc42f7fe700 (LWP 1109)):
#0  0x00007fc4501b3253 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fc44e038d3f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fc44e03a7e4 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fc44e03acfa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc44dfe519a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc44de0ae53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc448898a55 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fc44de0fd78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc44973a464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fc4501ba97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7fc436001700 (LWP 1093)):
#0  0x00007fc4501b3253 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fc44e038d3f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fc44e03a7e4 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fc44e03acfa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc44dfe519a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc44de0ae53 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc4507d1525 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fc44de0fd78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc44973a464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fc4501ba97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7fc437b5d700 (LWP 1087)):
#0  0x00007fc4501b150d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fc44f33d150 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc44f33eee9 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc438602a79 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fc44de0fd78 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc44973a464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fc4501ba97f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7fc4506ac940 (LWP 1080)):
[KCrash Handler]
#6  0x00007fc448883e50 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fc448884ba7 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fc44888e705 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fc44881852e in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fc4488185f7 in QQmlComponentPrivate::completeCreate() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007fc448818460 in QQmlComponent::create(QQmlContext*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007fc434216fd7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007fc44fddfd19 in ?? () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#14 0x00007fc44fcc6339 in KWin::Client::createDecoration(QRect const&) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#15 0x00007fc44fcc6cfd in KWin::Client::updateDecoration(bool, bool) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#16 0x00007fc44fd23656 in KWin::Client::manage(unsigned int, bool) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#17 0x00007fc44fca979f in KWin::Workspace::createClient(unsigned int, bool) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#18 0x00007fc44fd10a97 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () from /usr/lib/x86_64-linux-gnu/libkwin.so.5
#19 0x00007fc44dfe42df in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007fc438604455 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007fc4386053eb in QXcbConnection::processXcbEvents() () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#22 0x00007fc44e015729 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fc44e923bec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007fc44e92908f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fc44dfe7450 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fc44dfe93cc in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fc44e03abe2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fc4386770ad in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#29 0x00007fc44dfe519a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007fc44dfed99c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fc450479216 in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_kwin_x11.so
#32 0x00007fc4500f22b1 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#33 0x00000000004006d9 in _start ()

Possible duplicates by query: bug 369534, bug 369013, bug 368993, bug 367951, bug 367862.

Reported using DrKonqi