https://bugs.kde.org/show_bug.cgi?id=383055
Bug ID: 383055
Summary: crash when dragging a gtk3 window with touchscreen
Product: kwin
Version: git master
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: notm...@gmail.com
Target Milestone: ---
version: xdgv6 branch, but tracking here to not forget
if a gtk3 window is dragged from its CSD with mouse or touchpad, it works
correctly, if it's dragged with the touchscreen, kwin crashes with the
following backtrace:
#0 0x00007ff8863f8fc3 in __dynamic_cast () from
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
#1 0x00007ff8886b179e in KWin::Workspace::workspaceEvent (this=0x211f080,
e=0x24df340) at /home/diau/git/kf5/kde/workspace/kwin/events.cpp:364
#2 0x00007ff8886a58ea in KWin::XcbEventFilter::nativeEventFilter
(this=0x1686d20, eventType=..., message=0x24df340, result=0x7fff0800c9e8)
at /home/diau/git/kf5/kde/workspace/kwin/main.cpp:420
#3 0x00007ff886b9390f in QAbstractEventDispatcher::filterNativeEvent
(this=<optimized out>, eventType=..., message=0x24df340, result=0x7fff0800c9e8)
at kernel/qabstracteventdispatcher.cpp:467
#4 0x0000000000408349 in
KWin::ApplicationWayland::<lambda()>::operator()(void) const
(__closure=0x2146870)
at /home/diau/git/kf5/kde/workspace/kwin/main_wayland.cpp:176
#5 0x000000000040e8eb in QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void,
KWin::ApplicationWayland::continueStartupWithX()::<lambda()>
>::call(KWin::ApplicationWayland::<lambda()> &, void **) (f=...,
arg=0x7fff0800cb60) at /opt/kde5/include/QtCore/qobjectdefs_impl.h:130
#6 0x000000000040e66e in
QtPrivate::Functor<KWin::ApplicationWayland::continueStartupWithX()::<lambda()>,
0>::call<QtPrivate::List<>, void>(KWin::ApplicationWayland::<lambda()> &, void
*, void **) (f=..., arg=0x7fff0800cb60) at
/opt/kde5/include/QtCore/qobjectdefs_impl.h:240
#7 0x000000000040e0a1 in
QtPrivate::QFunctorSlotObject<KWin::ApplicationWayland::continueStartupWithX()::<lambda()>,
0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *,
void **, bool *) (which=1, this_=0x2146860, r=0x7fff0800d000, a=0x7fff0800cb60,
ret=0x0) at /opt/kde5/include/QtCore/qobject_impl.h:168
#8 0x00007ff886bc6d11 in QtPrivate::QSlotObjectBase::call (a=<optimized out>,
r=0x7fff0800d000, this=<optimized out>)
at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#9 QMetaObject::activate (sender=sender@entry=0x164b470,
signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x0)
at kernel/qobject.cpp:3749
#10 0x00007ff886bc71d7 in QMetaObject::activate (sender=sender@entry=0x164b470,
m=m@entry=0x7ff886e71240 <QAbstractEventDispatcher::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at
kernel/qobject.cpp:3628
#11 0x00007ff886b932fc in QAbstractEventDispatcher::aboutToBlock
(this=this@entry=0x164b470) at .moc/moc_qabstracteventdispatcher.cpp:139
#12 0x00007ff886bee18b in QEventDispatcherUNIX::processEvents (this=0x164b470,
flags=..., flags@entry=...) at kernel/qeventdispatcher_unix.cpp:477
#13 0x00007ff871f58e3b in QUnixEventDispatcherQPA::processEvents
(this=<optimized out>, flags=...) at qunixeventdispatcher.cpp:68
#14 0x00007ff886b949db in QEventLoop::processEvents
(this=this@entry=0x7fff0800cd30, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:134
#15 0x00007ff886b94e54 in QEventLoop::exec (this=this@entry=0x7fff0800cd30,
flags=flags@entry=...) at kernel/qeventloop.cpp:212
#16 0x00007ff886b9e8a0 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1291
#17 0x00007ff880588e24 in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1679
#18 0x00007ff886feb917 in QApplication::exec () at kernel/qapplication.cpp:2905
#19 0x000000000040d576 in main (argc=4, argv=0x7fff0800d268) at
/home/diau/git/kf5/kde/workspace/kwin/main_wayland.cpp:763
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