https://bugs.kde.org/show_bug.cgi?id=403038
Bug ID: 403038
Summary: KWin crashes (occasionally) when running script to
minimize current open window
Product: kwin
Version: 5.14.5
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: beo...@gmail.com
Target Milestone: ---
Application: kwin_x11 (5.14.5)
Qt Version: 5.12.0
Frameworks Version: 5.53.0
Operating System: Linux 4.19.12-1-ck x86_64
Distribution: "Arch Linux"
-- Information about the crash:
The script is below:
```
NUM=$(qdbus org.kde.KWin /Scripting org.kde.kwin.Scripting.loadScript
/home/beojan/.local/share/plasmashell/minimize.js Minimize)
qdbus org.kde.KWin /$NUM org.kde.kwin.Scripting.run
qdbus org.kde.KWin /Scripting org.kde.kwin.Scripting.unloadScript Minimize
```
And the KWin script is:
```
workspace.activeClient.minimized = true;
```
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 0x7f0463fe7840 (LWP 28362))]
Thread 7 (Thread 0x7f04609ea700 (LWP 8746)):
[KCrash Handler]
#6 0x00007f046bc36b60 in QRingBuffer::chop(long long) () at
/usr/lib/libQt5Core.so.5
#7 0x00007f046bcc45f2 in QIODevicePrivate::read(char*, long long, bool) () at
/usr/lib/libQt5Core.so.5
#8 0x00007f046bcc51fe in QIODevice::readAll() () at /usr/lib/libQt5Core.so.5
#9 0x00007f046cfe105f in () at /usr/lib/libkwin.so.5
#10 0x00007f046cfe2341 in () at /usr/lib/libkwin.so.5
#11 0x00007f046bbc39a1 in () at /usr/lib/libQt5Core.so.5
#12 0x00007f046bbbf9cc in () at /usr/lib/libQt5Core.so.5
#13 0x00007f046a9a6a9d in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f046d22cb23 in clone () at /usr/lib/libc.so.6
Thread 6 (Thread 0x7f0445f38700 (LWP 28495)):
#0 0x00007f046a9acafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1 0x00007f046b6a928c in () at /usr/lib/libQt5Script.so.5
#2 0x00007f046b6a92a9 in () at /usr/lib/libQt5Script.so.5
#3 0x00007f046a9a6a9d in start_thread () at /usr/lib/libpthread.so.0
#4 0x00007f046d22cb23 in clone () at /usr/lib/libc.so.6
Thread 5 (Thread 0x7f0447fff700 (LWP 28493)):
#0 0x00007f046a9acafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1 0x00007f0458b80c24 in () at /usr/lib/dri/i965_dri.so
#2 0x00007f0458b80948 in () at /usr/lib/dri/i965_dri.so
#3 0x00007f046a9a6a9d in start_thread () at /usr/lib/libpthread.so.0
#4 0x00007f046d22cb23 in clone () at /usr/lib/libc.so.6
Thread 4 (Thread 0x7f045b4f0700 (LWP 28491)):
#0 0x00007f046d221d16 in ppoll () at /usr/lib/libc.so.6
#1 0x00007f046bdcd46b in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /usr/lib/libQt5Core.so.5
#2 0x00007f046bdce94b in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#3 0x00007f046bd7a58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#4 0x00007f046bbbe5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5 0x00007f046a166b89 in () at /usr/lib/libQt5Qml.so.5
#6 0x00007f046bbbf9cc in () at /usr/lib/libQt5Core.so.5
#7 0x00007f046a9a6a9d in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007f046d22cb23 in clone () at /usr/lib/libc.so.6
Thread 3 (Thread 0x7f04612ee700 (LWP 28413)):
#0 0x00007f046d221d16 in ppoll () at /usr/lib/libc.so.6
#1 0x00007f046bdcd46b in qt_safe_poll(pollfd*, unsigned long, timespec const*)
() at /usr/lib/libQt5Core.so.5
#2 0x00007f046bdce94b in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#3 0x00007f046bd7a58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#4 0x00007f046bbbe5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5 0x00007f0469bd3ba6 in () at /usr/lib/libQt5DBus.so.5
#6 0x00007f046bbbf9cc in () at /usr/lib/libQt5Core.so.5
#7 0x00007f046a9a6a9d in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007f046d22cb23 in clone () at /usr/lib/libc.so.6
Thread 2 (Thread 0x7f046367b700 (LWP 28412)):
#0 0x00007f046d221c21 in poll () at /usr/lib/libc.so.6
#1 0x00007f046bae3630 in () at /usr/lib/libxcb.so.1
#2 0x00007f046bae52db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3 0x00007f0463b7196b in () at /usr/lib/libQt5XcbQpa.so.5
#4 0x00007f046bbbf9cc in () at /usr/lib/libQt5Core.so.5
#5 0x00007f046a9a6a9d in start_thread () at /usr/lib/libpthread.so.0
#6 0x00007f046d22cb23 in clone () at /usr/lib/libc.so.6
Thread 1 (Thread 0x7f0463fe7840 (LWP 28362)):
#0 0x00007f046a9acafc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1 0x00007f046bae383b in () at /usr/lib/libxcb.so.1
#2 0x00007f046bae4fef in () at /usr/lib/libxcb.so.1
#3 0x00007f046bae5103 in xcb_wait_for_reply () at /usr/lib/libxcb.so.1
#4 0x00007f0460a97ea0 in KWin::X11Cursor::doGetPos() () at
/usr/lib/qt/plugins/org.kde.kwin.platforms/KWinX11Platform.so
#5 0x00007f046cef192a in KWin::Cursor::pos() () at /usr/lib/libkwin.so.5
#6 0x00007f046cf45ee0 in KWin::Screens::current() const () at
/usr/lib/libkwin.so.5
#7 0x00007f046cf967f4 in KWin::Toplevel::isOnActiveScreen() const () at
/usr/lib/libkwin.so.5
#8 0x00007f046cf5e2e0 in KWin::Workspace::takeActivity(KWin::AbstractClient*,
QFlags<KWin::Workspace::ActivityFlag>) () at /usr/lib/libkwin.so.5
#9 0x00007f046cec5520 in KWin::Workspace::delayFocus() () at
/usr/lib/libkwin.so.5
#10 0x00007f046bda628c in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#11 0x00007f046bdb2418 in QTimer::timeout(QTimer::QPrivateSignal) () at
/usr/lib/libQt5Core.so.5
#12 0x00007f046bda6b1b in QObject::event(QEvent*) () at
/usr/lib/libQt5Core.so.5
#13 0x00007f046c743e34 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#14 0x00007f046c74b671 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#15 0x00007f046bd7b8f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#16 0x00007f046bdd0955 in QTimerInfoList::activateTimers() () at
/usr/lib/libQt5Core.so.5
#17 0x00007f046bdcea9e in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#18 0x00007f0463b72d4f in () at /usr/lib/libQt5XcbQpa.so.5
#19 0x00007f046bd7a58c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#20 0x00007f046bd82896 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#21 0x00007f046d2feb26 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#22 0x00007f046d155223 in __libc_start_main () at /usr/lib/libc.so.6
#23 0x000055c8e55ae05e in _start ()
[Inferior 1 (process 28362) detached]
Possible duplicates by query: bug 383401.
Reported using DrKonqi
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