https://bugs.kde.org/show_bug.cgi?id=506369
Bug ID: 506369
Summary: kwin_wayland crash due to SEGV
Classification: Plasma
Product: kwin
Version First 6.4.1
Reported In:
Platform: NixOS
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: generic-crash
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
kwin_wayland crashed
STEPS TO REPRODUCE
1. Unknown, nothing obvious/noticeable.
OBSERVED RESULT
crash
EXPECTED RESULT
no crash
SOFTWARE/OS VERSIONS
Operating System: NixOS 25.11
KDE Plasma Version: 6.4.1
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.0
Kernel Version: 6.15.3 (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 32 GiB of RAM (31.3 GiB usable)
Graphics Processor: AMD Radeon RX 7900 XTX
ADDITIONAL INFORMATION
```
(gdb) bt
#0 __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1 0x00007f0a2d89cfa3 in __pthread_kill_internal (threadid=<optimized out>,
signo=11) at pthread_kill.c:78
#2 0x00007f0a2d84190e in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#3 0x00007f0a322636f3 in KCrash::defaultCrashHandler (sig=11) at
/build/kcrash-6.15.0/src/kcrash.cpp:605
#4 <signal handler called>
#5 0x00007f0a2eec2769 in QKeySequence::operator[] (this=this@entry=0x254d9af0,
index=4294967295) at
/build/qtbase-everywhere-src-6.9.0/src/gui/kernel/qkeysequence.cpp:1368
#6 0x00007f0a31eab8d3 in KWin::TabBox::areModKeysDepressed (shortcuts=...) at
/build/kwin-6.4.1/src/tabbox/tabbox.cpp:664
#7 KWin::TabBox::TabBox::navigatingThroughWindows (this=0x239a4220,
forward=<optimized out>, shortcut=..., mode=KWin::TabBoxWindowsMode) at
/build/kwin-6.4.1/src/tabbox/tabbox.cpp:694
#8 KWin::TabBox::TabBox::navigatingThroughWindows (this=0x239a4220,
forward=<optimized out>, shortcut=..., mode=KWin::TabBoxWindowsMode) at
/build/kwin-6.4.1/src/tabbox/tabbox.cpp:684
#9 0x00007f0a2e2207ee in QtPrivate::QSlotObjectBase::call (this=0x24b23de0,
r=<optimized out>, a=0x7ffc5b20bbb0) at
/build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobjectdefs_impl.h:461
#10 doActivate<false> (sender=0x24b99cb0, signal_index=7, argv=0x7ffc5b20bbb0)
at /build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobject.cpp:4138
#11 0x00007f0a2e2167a7 in QMetaObject::activate
(sender=sender@entry=0x24b99cb0, m=m@entry=0x7f0a2f1d5f40
<QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=4,
argv=argv@entry=0x7ffc5b20bbb0) at
/build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobject.cpp:4198
#12 0x00007f0a2eeb5f84 in QMetaObject::activate<void, bool> (sender=0x24b99cb0,
mo=0x7f0a2f1d5f40 <QAction::staticMetaObject>, local_signal_index=4, ret=0x0)
at /build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobjectdefs.h:306
#13 QAction::triggered (this=this@entry=0x24b99cb0, _t1=<optimized out>) at
/build/qtbase-everywhere-src-6.9.0/build/src/gui/Gui_autogen/include/moc_qaction.cpp:372
#14 0x00007f0a2eeb930f in QAction::activate (this=0x24b99cb0, event=<optimized
out>) at /build/qtbase-everywhere-src-6.9.0/src/gui/kernel/qaction.cpp:1104
#15 0x00007f0a2e2207ee in QtPrivate::QSlotObjectBase::call (this=0x24ac7b40,
r=<optimized out>, a=0x7ffc5b20bd60) at
/build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobjectdefs_impl.h:461
#16 doActivate<false> (sender=0x24ac7640, signal_index=3, argv=0x7ffc5b20bd60)
at /build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobject.cpp:4138
#17 0x00007f0a2e2167a7 in QMetaObject::activate (sender=<optimized out>,
m=m@entry=0x7f0a2fffe3e0
<OrgKdeKglobalaccelComponentInterface::staticMetaObject>,
local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7ffc5b20bd60) at
/build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobject.cpp:4198
#18 0x00007f0a2fff4465 in QMetaObject::activate<void, QString, QString, long
long> (sender=<optimized out>, mo=0x7f0a2fffe3e0
<OrgKdeKglobalaccelComponentInterface::staticMetaObject>, local_signal_index=0,
ret=0x0) at
/nix/store/l9kvcx3wna1bla7xpy1629hawjqmna4y-qtbase-6.9.0/include/QtCore/qobjectdefs.h:306
#19 OrgKdeKglobalaccelComponentInterface::globalShortcutPressed
(this=<optimized out>, _t1=..., _t2=..., _t3=<optimized out>) at
/build/kglobalaccel-6.15.0/build/src/moc_kglobalaccel_component_interface.cpp:199
#20 OrgKdeKglobalaccelComponentInterface::qt_static_metacall (_o=0x24ac7640,
_c=<optimized out>, _id=<optimized out>, _a=0x7ffc5b20bf58)
at
/build/kglobalaccel-6.15.0/build/src/moc_kglobalaccel_component_interface.cpp:122
#21 0x00007f0a2fff46ff in OrgKdeKglobalaccelComponentInterface::qt_metacall
(this=0x24ac7640, _c=<optimized out>, _id=0, _a=0x7ffc5b20bf58)
at
/build/kglobalaccel-6.15.0/build/src/moc_kglobalaccel_component_interface.cpp:179
#22 0x00007f0a2f463d66 in QDBusConnectionPrivate::deliverCall
(this=0x7f0a20001690, object=0x24ac7640, msg=..., metaTypes=..., slotIdx=5) at
/build/qtbase-everywhere-src-6.9.0/src/dbus/qdbusintegrator.cpp:1007
#23 0x00007f0a2e211aea in QObject::event (this=0x24ac7640, e=0x7f0a20025d60) at
/build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qobject.cpp:1431
#24 0x00007f0a2f7a19fd in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x24ac7640, e=0x7f0a20025d60) at
/build/qtbase-everywhere-src-6.9.0/src/widgets/kernel/qapplication.cpp:3301
#25 0x00007f0a2e1b4408 in QCoreApplication::notifyInternal2
(receiver=0x24ac7640, event=0x7f0a20025d60) at
/build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qcoreapplication.cpp:1106
#26 0x00007f0a2e1b466d in QCoreApplication::sendEvent (receiver=<optimized
out>, event=<optimized out>) at
/build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qcoreapplication.cpp:1546
#27 0x00007f0a2e1b8258 in QCoreApplicationPrivate::sendPostedEvents
(receiver=receiver@entry=0x0, event_type=event_type@entry=0,
data=data@entry=0x231b0830)
at
/build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qcoreapplication.cpp:1879
#28 0x00007f0a2e390e52 in QEventDispatcherUNIX::processEvents (this=0x231d7b20,
flags=...) at
/build/qtbase-everywhere-src-6.9.0/src/corelib/kernel/qeventdispatcher_unix.cpp:418
#29 0x00007f0a2eff2bb2 in QUnixEventDispatcherQPA::processEvents
(this=<optimized out>, flags=...) at
/build/qtbase-everywhere-src-6.9.0/src/gui/platform/unix/qunixeventdispatcher.cpp:27
#30 0x00007f0a2e1c2d2b in QEventLoop::exec (this=this@entry=0x7ffc5b20c4a0,
flags=..., flags@entry=...) at
/build/qtbase-everywhere-src-6.9.0/src/corelib/global/qflags.h:77
#31 0x00007f0a2e1bdf21 in QCoreApplication::exec () at
/build/qtbase-everywhere-src-6.9.0/src/corelib/global/qflags.h:77
#32 0x00007f0a2e9f056d in QGuiApplication::exec () at
/build/qtbase-everywhere-src-6.9.0/src/gui/kernel/qguiapplication.cpp:1993
#33 0x00007f0a2f7a1969 in QApplication::exec () at
/build/qtbase-everywhere-src-6.9.0/src/widgets/kernel/qapplication.cpp:2568
#34 0x0000000000448d9e in main (argc=<optimized out>, argv=<optimized out>) at
/build/kwin-6.4.1/src/main_wayland.cpp:638
(gdb) frame 6
Downloading source file /build/kwin-6.4.1/src/tabbox/tabbox.cpp
#6 0x00007f0a31eab8d3 in KWin::TabBox::areModKeysDepressed (shortcuts=...) at
/build/kwin-6.4.1/src/tabbox/tabbox.cpp:664
664 const Qt::KeyboardModifiers mod = seq[seq.count() -
1].keyboardModifiers();
(gdb) l
659 if (shortcuts.isEmpty()) {
660 return false;
661 }
662
663 for (const QKeySequence &seq : shortcuts) {
664 const Qt::KeyboardModifiers mod = seq[seq.count() -
1].keyboardModifiers();
665 const Qt::KeyboardModifiers mods =
input()->modifiersRelevantForGlobalShortcuts();
666
667 if ((mod & Qt::ShiftModifier) &&
mods.testFlag(Qt::ShiftModifier)) {
668 return true;
(gdb) p seq.count
$7 = {int (const QKeySequence * const)} 0x7f0a2eec1c90 <QKeySequence::count()
const>
(gdb) info locals
mod = <optimized out>
mods = <optimized out>
seq = @0x254d9af0: {static staticMetaObject = {d = {superdata = {direct = 0x0},
stringdata = 0x7f0a2f0d70b8
<QKeySequence::qt_staticMetaObjectStaticContent<(anonymous
namespace)::qt_meta_tag_ZN12QKeySequenceE_t>+728>,
data = 0x7f0a2f0d6de0
<QKeySequence::qt_staticMetaObjectStaticContent<(anonymous
namespace)::qt_meta_tag_ZN12QKeySequenceE_t>>, static_metacall = 0x0,
relatedMetaObjects = 0x0,
metaTypes = 0x7f0a2f1c6fc0
<QKeySequence::qt_staticMetaObjectRelocatingContent<(anonymous
namespace)::qt_meta_tag_ZN12QKeySequenceE_t>>, extradata = 0x0}}, d =
0x256cf870}
__for_range = <optimized out>
__for_begin = <optimized out>
__for_end = <optimized out>
(gdb) frame 5
#5 0x00007f0a2eec2769 in QKeySequence::operator[] (this=this@entry=0x254d9af0,
index=4294967295) at
/build/qtbase-everywhere-src-6.9.0/src/gui/kernel/qkeysequence.cpp:1368
1368 return QKeyCombination::fromCombined(d->key[index]);
(gdb) l
1363 sequence. This can only be used to read an element.
1364 */
1365 QKeyCombination QKeySequence::operator[](uint index) const
1366 {
1367 Q_ASSERT_X(index < QKeySequencePrivate::MaxKeyCount,
"QKeySequence::operator[]", "index out of range");
1368 return QKeyCombination::fromCombined(d->key[index]);
1369 }
1370
1371
1372 /*!
(gdb) p d
$8 = (QKeySequencePrivate *) 0x256cf870
(gdb) p d->key
$10 = {0, 0, 0, 0}
(gdb) p index
$11 = 4294967295
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