https://bugs.kde.org/show_bug.cgi?id=460374
--- Comment #1 from postix <pos...@posteo.eu> ---
```
Core was generated by `/usr/bin/kwin_wayland --wayland-fd 7 --socket wayland-0
--xwayland-fd 8 --xwayl'.
Program terminated with signal SIGSEGV, Segmentation fault.
warning: Section `.reg-xstate/2197' in core file too small.
#0 0x0000561f6336c2af in KWin::Xwl::Dnd::handleClientMessage
(this=0x561f65a36050, event=0x7f9dd400baf0) at
/usr/src/debug/kwin5-5.25.5-1.2.x86_64/src/xwayland/dnd.cpp:125
125 if (drag->handleClientMessage(event)) {
[Current thread is 1 (Thread 0x7f9ddc03c940 (LWP 2197))]
(gdb) bt full
#0 0x0000561f6336c2af in
KWin::Xwl::Dnd::handleClientMessage(xcb_client_message_event_t*)
(this=0x561f65a36050, event=0x7f9dd400baf0) at
/usr/src/debug/kwin5-5.25.5-1.2.x86_64/src/xwayland/dnd.cpp:125
drag = 0x0
__for_range = @0x561f65a360a8: {d = 0x561f6699b800}
__for_begin = 0x561f6699bac0
__for_end = 0x561f6699bac8
#1 0x0000561f6336f9cc in non-virtual thunk to
KWin::Xwl::DataBridge::nativeEventFilter(QByteArray const&, void*, long*) () at
/usr/src/debug/kwin5-5.25.5-1.2.x86_64/src/xwayland/databridge.h:58
#2 0x00007f9ddfe2b6ef in
QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*)
(this=<optimized out>, eventType=..., message=message@entry=0x7f9dd400baf0,
result=result@entry=0x7ffed7167be8) at kernel/qabstracteventdispatcher.cpp:495
filter = <optimized out>
i = 0
scopeLevelCounter = {threadData = 0x561f644bf160}
d = 0x561f64509dd0
#3 0x0000561f63381b10 in KWin::Xwl::Xwayland::dispatchEvents()
(this=0x561f64c1ade0) at
/usr/src/debug/kwin5-5.25.5-1.2.x86_64/src/xwayland/xwayland.cpp:123
event = 0x7f9dd400baf0
result = 0
dispatcher = <optimized out>
connection = 0x561f65a13b70
connectionError = <optimized out>
#4 0x00007f9ddfe6505d in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7ffed7167d20, r=0x561f64c1ade0, this=0x561f6524df50) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
receiver = 0x561f64c1ade0
td = <optimized out>
receiverInSameThread = <optimized out>
senderData = {previous = 0x0, receiver = 0x561f64c1ade0, sender =
0x561f65a30880, signal = 3}
c = 0x561f65a38af0
connections = {d = 0x561f65a3c600}
list = <optimized out>
inSenderThread = true
highestConnectionId = 1
signalVector = 0x561f65a37380
currentThreadId = 0x7f9ddc03c940
sp = <optimized out>
signal_spy_set = 0x0
empty_argv = {0x0}
senderDeleted = false
#5 doActivate<false>(QObject*, int, void**) (sender=0x561f65a30880,
signal_index=3, argv=0x7ffed7167d20) at kernel/qobject.cpp:3919
receiver = 0x561f64c1ade0
td = <optimized out>
receiverInSameThread = <optimized out>
senderData = {previous = 0x0, receiver = 0x561f64c1ade0, sender =
0x561f65a30880, signal = 3}
c = 0x561f65a38af0
connections = {d = 0x561f65a3c600}
list = <optimized out>
inSenderThread = true
highestConnectionId = 1
signalVector = 0x561f65a37380
currentThreadId = 0x7f9ddc03c940
sp = <optimized out>
signal_spy_set = 0x0
empty_argv = {0x0}
senderDeleted = false
#6 0x00007f9ddfe5e4df in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x561f65a30880, m=m@entry=0x7f9de0105880,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffed7167d20)
at kernel/qobject.cpp:3979
#7 0x00007f9ddfe683bf in QSocketNotifier::activated(QSocketDescriptor,
QSocketNotifier::Type, QSocketNotifier::QPrivateSignal)
(this=this@entry=0x561f65a30880, _t1=..., _t2=<optimized out>, _t3=...) at
.moc/moc_qsocketnotifier.cpp:178
_a = {0x0, 0x7ffed7167d1c, 0x7ffed7167d18, 0x7ffed7167d17}
#8 0x00007f9ddfe68bc5 in QSocketNotifier::event(QEvent*) (this=0x561f65a30880,
e=<optimized out>) at kernel/qsocketnotifier.cpp:302
d = 0x561f64ac2b70
#9 0x00007f9ddf34b3fe in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=<optimized out>, receiver=0x561f65a30880, e=0x7ffed7167e20) at
kernel/qapplication.cpp:3637
consumed = false
filtered = false
#10 0x00007f9ddfe2e178 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x561f65a30880, event=0x7ffed7167e20) at
kernel/qcoreapplication.cpp:1064
selfRequired = true
result = false
cbdata = {0x561f65a30880, 0x7ffed7167e20, 0x7ffed7167dcf}
d = <optimized out>
threadData = 0x561f644bf160
scopeLevelCounter = {threadData = 0x561f644bf160}
#11 0x00007f9ddfe82ca3 in
QEventDispatcherUNIXPrivate::activateSocketNotifiers() (this=0x561f64509dd0) at
kernel/qeventdispatcher_unix.cpp:304
notifier = 0x561f65a30880
n_activated = 0
event = {_vptr.QEvent = 0x7f9de01051f0 <vtable for QEvent+16>, static
staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata =
0x7f9ddfff50e0 <qt_meta_stringdata_QEvent>, data = 0x7f9ddfff4b20
<qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0,
extradata = 0x0}}, d = 0x0, t = 50, posted = 0, spont = 0, m_accept = 1,
reserved = 6882}
#12 0x00007f9ddfe83167 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:511
d = 0x561f64509dd0
threadData = <optimized out>
include_timers = true
canWait = <optimized out>
tm = <optimized out>
wait_tm = {tv_sec = 4, tv_nsec = 599000000}
nevents = 0
#13 0x0000561f6343e81d in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at qunixeventdispatcher.cpp:63
didSendEvents = <optimized out>
#14 0x00007f9ddfe2cbeb in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffed7167fb0, flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:69
d = 0x561f64842a70
threadData = <optimized out>
locker = {val = 94692826675240}
app = <optimized out>
#15 0x00007f9ddfe34d56 in QCoreApplication::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
threadData = 0x561f644bf160
eventLoop = {<QObject> = {_vptr.QObject = 0x7f9de0104fa8 <vtable for
QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0},
stringdata = 0x7f9ddfff97e0 <qt_meta_stringdata_QObject>, data = 0x7f9ddfff96c0
<qt_meta_data_QObject>, static_metacall = 0x7f9ddfe639d0
<QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x561f64842a70},
static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata =
0x7f9ddfffc780 <qt_meta_stringdata_Qt>, data = 0x7f9ddfff9900
<qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata =
0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x561f63495400
<QObject::staticMetaObject>}, stringdata = 0x7f9ddfff3f60
<qt_meta_stringdata_QEventLoop>, data = 0x7f9ddfff3f00
<qt_meta_data_QEventLoop>, static_metacall = 0x7f9ddfe2c920
<QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}}
returnCode = <optimized out>
#16 0x00007f9de0281e5c in QGuiApplication::exec() () at
kernel/qguiapplication.cpp:1870
#17 0x00007f9ddf34b375 in QApplication::exec() () at
kernel/qapplication.cpp:2829
#18 0x0000561f6336a9a0 in main(int, char**) (argc=<optimized out>,
argv=<optimized out>) at
/usr/src/debug/kwin5-5.25.5-1.2.x86_64/src/main_wayland.cpp:642
environment = {d = {d = 0x561f644fdf60}}
a = {<KWin::ApplicationWaylandAbstract> = {<KWin::Application> =
{<QApplication> = {<QGuiApplication> = {<QCoreApplication> = {<QObject> =
{_vptr.QObject = 0x561f63496e20 <vtable for KWin::ApplicationWayland+16>,
static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata =
0x7f9ddfff97e0 <qt_meta_stringdata_QObject>, data = 0x7f9ddfff96c0
<qt_meta_data_QObject>, static_metacall = 0x7f9ddfe639d0
<QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x561f64501950},
static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata =
0x7f9ddfffc780 <qt_meta_stringdata_Qt>, data = 0x7f9ddfff9900
<qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata =
0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x561f63495400
<QObject::staticMetaObject>}, stringdata = 0x7f9ddfff4660
<qt_meta_stringdata_QCoreApplication>, data = 0x7f9ddfff4540
<qt_meta_data_QCoreApplication>, static_metacall = 0x7f9ddfe2f990
<QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int,
void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self =
0x7ffed7168240}, static staticMetaObject = {d = {superdata = {direct =
0x7f9de0105140 <QCoreApplication::staticMetaObject>}, stringdata =
0x7f9de0714800 <qt_meta_stringdata_QGuiApplication>, data = 0x7f9de0714580
<qt_meta_data_QGuiApplication>, static_metacall = 0x7f9de0287640
<QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int,
void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject
= {d = {superdata = {direct = 0x7f9de0814fc0
<QGuiApplication::staticMetaObject>}, stringdata = 0x7f9ddf6fa8c0
<qt_meta_stringdata_QApplication>, data = 0x7f9ddf6fa740
<qt_meta_data_QApplication>, static_metacall = 0x7f9ddf34ef10
<QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d =
{superdata = {direct = 0x7f9ddf85ef80 <QApplication::staticMetaObject>},
stringdata = 0x7f9de13682e0
<_ZL36qt_meta_stringdata_KWin__Application.lto_priv.0>, data = 0x7f9de135fa40
<_ZL30qt_meta_data_KWin__Application.lto_priv.0>, static_metacall =
0x7f9de10ecc30 <KWin::Application::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}},
m_eventFilters = {<QListSpecialMethods<QPointer<KWin::X11EventFilterContainer>
>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value
= std::atomic<int> = { -1 }}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d
= 0x561f65a35b60}, d = 0x561f65a35b60}}, m_genericEventFilters =
{<QListSpecialMethods<QPointer<KWin::X11EventFilterContainer> >> = {<No data
fields>}, {p = {static shared_null = {ref = {atomic = {_q_value =
std::atomic<int> = { -1 }}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d =
0x561f63495770 <QListData::shared_null>}, d = 0x561f63495770
<QListData::shared_null>}}, m_eventFilter = {d = 0x561f6452c110}, m_configLock
= false, m_config = {d = 0x561f64516940}, m_kxkbConfig = {d = 0x561f64557c40},
m_operationMode = KWin::Application::OperationModeXwayland, m_x11Time =
8656414, m_rootWindow = 966, m_connection = 0x561f65a13b70, m_defaultScreen =
0x561f65a00c1c, m_useKActivities = true, m_platform = 0x561f64557b80,
m_terminating = false}, static staticMetaObject = {d = {superdata = {direct =
0x561f63495d60 <KWin::Application::staticMetaObject>}, stringdata =
0x7f9de135fa00
<_ZL51qt_meta_stringdata_KWin__ApplicationWaylandAbstract.lto_priv.0>, data =
0x7f9de135f9c0 <_ZL45qt_meta_data_KWin__ApplicationWaylandAbstract.lto_priv.0>,
static_metacall = 0x7f9de10ee030
<KWin::ApplicationWaylandAbstract::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}},
static staticMetaObject = {d = {superdata = {direct = 0x7f9de1476220
<KWin::ApplicationWaylandAbstract::staticMetaObject>}, stringdata =
0x561f63447040 <qt_meta_stringdata_KWin__ApplicationWayland>, data =
0x561f63445680 <qt_meta_data_KWin__ApplicationWayland>, static_metacall =
0x561f6336c0f0 <KWin::ApplicationWayland::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}},
m_startXWayland = true, m_applicationsToStart = {<QList<QString>> =
{<QListSpecialMethods<QString>> = {<No data fields>}, {p = {d = 0x561f63495770
<QListData::shared_null>}, d = 0x561f63495770 <QListData::shared_null>}}, <No
data fields>}, m_inputMethodServerToStart = {d = 0x561f63495ea0
<QArrayData::shared_null>}, m_environment = {d = {d = 0x561f65a34850}},
m_sessionArgument = {d = 0x561f63495ea0 <QArrayData::shared_null>}, m_xwayland
= 0x561f64c1ade0, m_xwaylandListenFds = {d = 0x561f6455cf30}, m_xwaylandDisplay
= {d = 0x561f64541f20}, m_xwaylandXauthority = {d = 0x561f6454e780},
m_settingsWatcher = {value = 0x561f6455cd90, d = 0x561f64557850}}
availablePlugins = {d = 0x561f64537610}
hasPlugin = {__availablePlugins = @0x7ffed71681f8}
hasSizeOption = <optimized out>
hasOutputCountOption = <optimized out>
hasX11Option = <optimized out>
hasVirtualOption = true
hasWaylandOption = true
hasDrmOption = <optimized out>
xwaylandOption = {d = {d = 0x561f645370f0}}
waylandSocketOption = {d = {d = 0x561f64536a50}}
x11DisplayOption = {d = {d = 0x561f64536800}}
waylandDisplayOption = {d = {d = 0x561f64539970}}
virtualFbOption = {d = {d = 0x561f64539930}}
widthOption = {d = {d = 0x561f64541c60}}
heightOption = {d = {d = 0x561f6454aa80}}
scaleOption = {d = {d = 0x561f64541ca0}}
outputCountOption = {d = {d = 0x561f6453a350}}
waylandSocketFdOption = {d = {d = 0x561f64539830}}
xwaylandListenFdOption = {d = {d = 0x561f64539870}}
xwaylandDisplayOption = {d = {d = 0x561f6453af20}}
xwaylandXAuthorityOption = {d = {d = 0x561f6453af60}}
replaceOption = {d = {d = 0x561f6453ae20}}
parser = {d = 0x561f6451c020}
drmOption = {d = {d = 0x561f6454e3a0}}
inputMethodOption = {d = {d = 0x561f6454e4a0}}
listBackendsOption = {d = {d = 0x561f6454e600}}
screenLockerOption = {d = {d = 0x561f6454e6a0}}
noScreenLockerOption = {d = {d = 0x561f6454e740}}
noGlobalShortcutsOption = {d = {d = 0x561f6454e840}}
noActivitiesOption = {d = {d = 0x561f6454e8e0}}
exitWithSessionOption = {d = {d = 0x561f6454e980}}
pluginName = {d = 0x561f63461480
<KWin::s_drmPlugin::{lambda()#1}::operator()() const::qstring_literal>}
initialWindowSize = {wd = 1024, ht = 768}
deviceIdentifier = {d = 0x561f63495ea0 <QArrayData::shared_null>}
outputCount = 1
outputScale = 1
pluginIt = <optimized out>
server = <optimized out>
flags = {i = <optimized out>}
socketName = {d = 0x561f64541e30}
```
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