Bug 366513

Application: kwin_x11 (5.7.3)

Qt Version: 5.6.1
Frameworks Version: 5.24.0
Operating System: Linux 4.6.4-301.fc24.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
Update Fedora 23 to Fedora 24 with dnf upgrade plugin;
Try login to Plasma Encvironment;

Some times later try update Fedora 24 to latest stable packets, including plasma*.
Try to login in Plasma-environment.

- Unusual behavior I noticed:
Message-box about "kwin crashed (Segfault)" appear;
Start-menu, Quick-Launch, Taskbar and application tray NOT appear;
But X-server live, i can run applications with Alt-F1 and switch between appications with Alt-Tab.
Graphical desktop (Icons, widgets) not appear;

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff430f58940 (LWP 4505))]

Thread 4 (Thread 0x7ff40e188700 (LWP 4517)):
#0  0x00007ff44405cbd0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff449a8bbc4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007ff449a8bc09 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007ff4440575ca in start_thread () from /lib64/libpthread.so.0
#4  0x00007ff4411d0ead in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7ff40f705700 (LWP 4516)):
#0  0x00007ff4411c7103 in select () from /lib64/libc.so.6
#1  0x00007ff441fc76df in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007ff441fc8dd4 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib64/libQt5Core.so.5
#3  0x00007ff441fc930a in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007ff441f7a5ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007ff441dd9343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007ff448cda8f5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007ff441ddd99a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007ff4440575ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007ff4411d0ead in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7ff423fff700 (LWP 4512)):
#0  0x00007ff4411c7103 in select () from /lib64/libc.so.6
#1  0x00007ff441fc76df in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007ff441fc8dd4 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /lib64/libQt5Core.so.5
#3  0x00007ff441fc930a in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007ff441f7a5ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007ff441dd9343 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007ff443b55559 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#7  0x00007ff441ddd99a in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007ff4440575ca in start_thread () from /lib64/libpthread.so.0
#9  0x00007ff4411d0ead in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ff430f58940 (LWP 4505)):
[KCrash Handler]
#6  0x00007ff41369b2f5 in nv30_fp_state_bind () from /usr/lib64/dri/nouveau_dri.so
#7  0x00007ff41351d0ce in cso_delete_fragment_shader () from /usr/lib64/dri/nouveau_dri.so
#8  0x00007ff4133d32e1 in destroy_program_variants () from /usr/lib64/dri/nouveau_dri.so
#9  0x00007ff4133d33c4 in destroy_shader_program_variants_cb () from /usr/lib64/dri/nouveau_dri.so
#10 0x00007ff4132e4c3d in _mesa_HashWalk () from /usr/lib64/dri/nouveau_dri.so
#11 0x00007ff4133a0731 in st_destroy_context () from /usr/lib64/dri/nouveau_dri.so
#12 0x00007ff4135122dd in dri_destroy_context () from /usr/lib64/dri/nouveau_dri.so
#13 0x00007ff4135114c3 in driDestroyContext () from /usr/lib64/dri/nouveau_dri.so
#14 0x00007ff43f3343af in dri2_destroy_context () from /lib64/libGL.so.1
#15 0x00007ff43f3078d9 in glXDestroyContext () from /lib64/libGL.so.1
#16 0x00007ff44ab9f401 in QGLXContext::~QGLXContext() () from /usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#17 0x00007ff44ab9f429 in QGLXContext::~QGLXContext() () from /usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#18 0x00007ff4422f0a0b in QOpenGLContext::destroy() () from /lib64/libQt5Gui.so.5
#19 0x00007ff4422f0fe7 in QOpenGLContext::~QOpenGLContext() () from /lib64/libQt5Gui.so.5
#20 0x00007ff4422f0ff9 in QOpenGLContext::~QOpenGLContext() () from /lib64/libQt5Gui.so.5
#21 0x00007ff4491a07f9 in QSGGuiThreadRenderLoop::windowDestroyed(QQuickWindow*) () from /lib64/libQt5Quick.so.5
#22 0x00007ff4491d2f78 in QQuickWindow::~QQuickWindow() () from /lib64/libQt5Quick.so.5
#23 0x00007ff40e414bb1 in QQmlPrivate::QQmlElement<PlasmaQuick::Dialog>::~QQmlElement() () from /usr/lib64/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#24 0x00007ff441faa4fc in QObjectPrivate::deleteChildren() () from /lib64/libQt5Core.so.5
#25 0x00007ff441fab5ff in QObject::~QObject() () from /lib64/libQt5Core.so.5
#26 0x00007ff44a4b71fb in QQmlPrivate::QQmlElement<KWin::TabBox::SwitcherItem>::~QQmlElement() () from /lib64/libkwin.so.5
#27 0x00007ff44a4b56b7 in KWin::TabBox::TabBoxHandlerPrivate::~TabBoxHandlerPrivate() () from /lib64/libkwin.so.5
#28 0x00007ff44a4b5858 in KWin::TabBox::TabBoxHandler::~TabBoxHandler() () from /lib64/libkwin.so.5
#29 0x00007ff44a4a57c3 in KWin::TabBox::TabBoxHandlerImpl::~TabBoxHandlerImpl() () from /lib64/libkwin.so.5
#30 0x00007ff441faa4fc in QObjectPrivate::deleteChildren() () from /lib64/libQt5Core.so.5
#31 0x00007ff441fab5ff in QObject::~QObject() () from /lib64/libQt5Core.so.5
#32 0x00007ff44a4abe69 in KWin::TabBox::TabBox::~TabBox() () from /lib64/libkwin.so.5
#33 0x00007ff441faa4fc in QObjectPrivate::deleteChildren() () from /lib64/libQt5Core.so.5
#34 0x00007ff441fab5ff in QObject::~QObject() () from /lib64/libQt5Core.so.5
#35 0x00007ff44a360826 in KWin::Workspace::~Workspace() () from /lib64/libkwin.so.5
#36 0x00007ff44a3609a9 in KWin::Workspace::~Workspace() () from /lib64/libkwin.so.5
#37 0x00007ff44a785956 in KWin::ApplicationX11::lostSelection() () from /lib64/libkdeinit5_kwin_x11.so
#38 0x00007ff441fa3b92 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#39 0x00007ff442d62f3b in KSelectionOwner::filterEvent(void*) () from /lib64/libKF5WindowSystem.so.5
#40 0x00007ff441f7969c in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /lib64/libQt5Core.so.5
#41 0x00007ff42a3aa775 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /lib64/libQt5XcbQpa.so.5
#42 0x00007ff42a3ab70b in QXcbConnection::processXcbEvents() () from /lib64/libQt5XcbQpa.so.5
#43 0x00007ff441fa4bd9 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#44 0x00007ff44280ec0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#45 0x00007ff4428140ef in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#46 0x00007ff441f7b7aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#47 0x00007ff441f7d84f in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#48 0x00007ff441fc91e2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#49 0x00007ff42a41d7dd in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5XcbQpa.so.5
#50 0x00007ff441f7a5ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#51 0x00007ff441f8217c in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#52 0x00007ff44a7870d6 in kdemain () from /lib64/libkdeinit5_kwin_x11.so
#53 0x00007ff4410ee731 in __libc_start_main () from /lib64/libc.so.6
#54 0x000055d0e7c5bcf9 in _start ()

Reported using DrKonqi