Application: kwin_x11 (5.12.8)

Qt Version: 5.9.7
Frameworks Version: 5.55.0
Operating System: Linux 4.12.14-lp151.28.20-default x86_64
Distribution: "openSUSE Leap 15.1"

-- Information about the crash:
- An application blocked composite
- Kwin crash
- From tty i typped "DISPLAY=:0 kwin_x11"
- Kwin works again
- hitting top left to see all windows
- Kwin crash
- drkonqi start

No Kwin scripts added.
No plasmoids added.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb381c33940 (LWP 681))]

Thread 8 (Thread 0x7fb362cf9700 (LWP 927)):
#0  0x00007fb381599296 in ppoll () from /lib64/libc.so.6
#1  0x00007fb37eba6621 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /usr/lib64/libQt5Core.so.5
#2  0x00007fb37eba7d3e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#3  0x00007fb37eb4f90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007fb37e96ddaa in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#5  0x00007fb37909b9f5 in ?? () from /usr/lib64/libQt5Qml.so.5
#6  0x00007fb37e972ced in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007fb37a5b0569 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fb3815a39ef in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fb3475fe700 (LWP 755)):
#0  0x00007fb381599296 in ppoll () from /lib64/libc.so.6
#1  0x00007fb37eba6621 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /usr/lib64/libQt5Core.so.5
#2  0x00007fb37eba7d3e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#3  0x00007fb37eb4f90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007fb37e96ddaa in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#5  0x00007fb37e972ced in ?? () from /usr/lib64/libQt5Core.so.5
#6  0x00007fb37a5b0569 in start_thread () from /lib64/libpthread.so.0
#7  0x00007fb3815a39ef in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fb346dfd700 (LWP 717)):
#0  0x00007fb37a5b68ad in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fb37d87a574 in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007fb37d87a5b9 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x00007fb37a5b0569 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fb3815a39ef in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fb347dff700 (LWP 706)):
#0  0x00007fb37a5b68ad in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fb351b4088b in ?? () from /usr/lib64/dri/r600_dri.so
#2  0x00007fb351b40597 in ?? () from /usr/lib64/dri/r600_dri.so
#3  0x00007fb37a5b0569 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fb3815a39ef in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fb348600700 (LWP 705)):
#0  0x00007fb37a5b68ad in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fb351b4088b in ?? () from /usr/lib64/dri/r600_dri.so
#2  0x00007fb351b40597 in ?? () from /usr/lib64/dri/r600_dri.so
#3  0x00007fb37a5b0569 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fb3815a39ef in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fb361a75700 (LWP 685)):
#0  0x00007fb381599296 in ppoll () from /lib64/libc.so.6
#1  0x00007fb37eba6621 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /usr/lib64/libQt5Core.so.5
#2  0x00007fb37eba7d3e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#3  0x00007fb37eb4f90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007fb37e96ddaa in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#5  0x00007fb37909b9f5 in ?? () from /usr/lib64/libQt5Qml.so.5
#6  0x00007fb37e972ced in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007fb37a5b0569 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fb3815a39ef in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fb3634fa700 (LWP 683)):
#0  0x00007fb37eba7628 in QEventDispatcherUNIXPrivate::markPendingSocketNotifiers() () from /usr/lib64/libQt5Core.so.5
#1  0x00007fb37eba7974 in QEventDispatcherUNIXPrivate::activateSocketNotifiers() () from /usr/lib64/libQt5Core.so.5
#2  0x00007fb37eba8068 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#3  0x00007fb37eb4f90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007fb37e96ddaa in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#5  0x00007fb377f3a9e5 in ?? () from /usr/lib64/libQt5DBus.so.5
#6  0x00007fb37e972ced in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007fb37a5b0569 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fb3815a39ef in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fb381c33940 (LWP 681)):
[KCrash Handler]
#6  0x00007fb3810c8f07 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () from /usr/lib64/libkwin.so.5
#7  0x00007fb37eb4e4af in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /usr/lib64/libQt5Core.so.5
#8  0x00007fb369b21eb0 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /usr/lib64/libQt5XcbQpa.so.5
#9  0x00007fb369b22b3c in QXcbConnection::processXcbEvents() () from /usr/lib64/libQt5XcbQpa.so.5
#10 0x00007fb37eb810a2 in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#11 0x00007fb37f8fb3dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#12 0x00007fb37f902ca4 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#13 0x00007fb37eb518d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#14 0x00007fb37eb5404d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#15 0x00007fb37eba7b54 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#16 0x00007fb369b83e6d in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#17 0x00007fb37eb4f90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#18 0x00007fb37eb589b4 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#19 0x00007fb38186e58b in kdemain () from /usr/lib64/libkdeinit5_kwin_x11.so
#20 0x00007fb3814cbf8a in __libc_start_main () from /lib64/libc.so.6
#21 0x0000557a8166f80a in _start ()
[Inferior 1 (process 681) detached]

The reporter indicates this bug may be a duplicate of or related to bug 412642, bug 404417.

Possible duplicates by query: bug 412993, bug 412642, bug 411943, bug 411251, bug 410839.

Reported using DrKonqi