https://bugs.kde.org/show_bug.cgi?id=394539
Bug ID: 394539
Summary: KWin crashes when activating Window Overview with top
left hotcorner
Product: kwin
Version: 5.12.5
Platform: Archlinux Packages
OS: Linux
Status: UNCONFIRMED
Keywords: drkonqi
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: otto.rad...@gmail.com
Target Milestone: ---
Application: kwin_x11 (5.12.5)
Qt Version: 5.10.1
Frameworks Version: 5.46.0
Operating System: Linux 4.14.39-1-MANJARO x86_64
Distribution: "Manjaro Linux"
-- Information about the crash:
- What I was doing when the application crashed:
I moved th mouse cursor to the top-left corner to activate Window Overview.
Details about the device:
- XPS 9550 4K with Nvidia 960M
- Manjaro - everything is up-to-date
The crash can be reproduced sometimes.
-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6900aa6840 (LWP 8322))]
Thread 5 (Thread 0x7f68c6f3a700 (LWP 8594)):
#0 0x7f6900432fa6 in ppoll () at /usr/lib/libc.so.6
#1 0x7f68fd831db3 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /usr/lib/libQt5Core.so.5
#2 0x7f68fd83354f in
QEventDispatcherUNIX::processEvents(QFlags) ()
at /usr/lib/libQt5Core.so.5
#3 0x7f68fd7d831b in
QEventLoop::exec(QFlags) () at
/usr/lib/libQt5Core.so.5
#4 0x7f68fd5e771e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5 0x7f68f7f2e319 in () at /usr/lib/libQt5Qml.so.5
#6 0x7f68fd5ecabd in () at /usr/lib/libQt5Core.so.5
#7 0x7f68f9462075 in start_thread () at /usr/lib/libpthread.so.0
#8 0x7f690043d53f in clone () at /usr/lib/libc.so.6
Thread 4 (Thread 0x7f68c6739700 (LWP 8334)):
#0 0x7f68f9467ffc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1 0x7f68fc724f77 in () at /usr/lib/libQt5Script.so.5
#2 0x7f68fc724fb9 in () at /usr/lib/libQt5Script.so.5
#3 0x7f68f9462075 in start_thread () at /usr/lib/libpthread.so.0
#4 0x7f690043d53f in clone () at /usr/lib/libc.so.6
Thread 3 (Thread 0x7f68cde21700 (LWP 8329)):
#0 0x7f6900432fa6 in ppoll () at /usr/lib/libc.so.6
#1 0x7f68fd831db3 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /usr/lib/libQt5Core.so.5
#2 0x7f68fd83354f in
QEventDispatcherUNIX::processEvents(QFlags) ()
at /usr/lib/libQt5Core.so.5
#3 0x7f68fd7d831b in
QEventLoop::exec(QFlags) () at
/usr/lib/libQt5Core.so.5
#4 0x7f68fd5e771e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5 0x7f68f7f2e319 in () at /usr/lib/libQt5Qml.so.5
#6 0x7f68fd5ecabd in () at /usr/lib/libQt5Core.so.5
#7 0x7f68f9462075 in start_thread () at /usr/lib/libpthread.so.0
#8 0x7f690043d53f in clone () at /usr/lib/libc.so.6
Thread 2 (Thread 0x7f68d700 (LWP 8326)):
#0 0x7f6900432fa6 in ppoll () at /usr/lib/libc.so.6
#1 0x7f68fd831db3 in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /usr/lib/libQt5Core.so.5
#2 0x7f68fd83354f in
QEventDispatcherUNIX::processEvents(QFlags) ()
at /usr/lib/libQt5Core.so.5
#3 0x7f68fd7d831b in
QEventLoop::exec(QFlags) () at
/usr/lib/libQt5Core.so.5
#4 0x7f68fd5e771e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5 0x7f68f6dcd416 in () at /usr/lib/libQt5DBus.so.5
#6 0x7f68fd5ecabd in () at /usr/lib/libQt5Core.so.5
#7 0x7f68f9462075 in start_thread () at /usr/lib/libpthread.so.0
#8 0x7f690043d53f in clone () at /usr/lib/libc.so.6
Thread 1 (Thread 0x7f6900aa6840 (LWP 8322)):
[KCrash Handler]
#6 0x55e958ca8290 in ()
#7 0x7f68fff5a84a in KWin::Workspace::workspaceEvent(xcb_generic_event_t*)
() at /usr/lib/libkwin.so.5
#8 0x7f68fd7d6d4f in
QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) ()
at /usr/lib/libQt5Core.so.5
#9 0x7f68e7b303f2 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*)
() at /usr/lib/libQt5XcbQpa.so.5
#10 0x7f68e7b3107e in QXcbConnection::processXcbEvents() () at
/usr/lib/libQt5XcbQpa.so.5
#11 0x7f68fd80b052 in QObject::event(QEvent*) () at
/usr/lib/libQt5Core.so.5
#12 0x7f68fe557fec in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#13 0x7f68fe55f9c6 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#14 0x7f68fd7d9ce0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#15 0x7f68fd7dc946 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#16 0x7f68fd833366 in
QEventDispatcherUNIX::processEvents(QFlags) ()
at /usr/lib/libQt5Core.so.5
#17 0x7f68e7bb671e in () at /usr/lib/libQt5XcbQpa.so.5
#18 0x7f68fd7d831b in
QEventLoop::exec(QFlags) () a
