Comment # 15
on bug 107213
from Shmerl
I managed to make it produce a core. It's from kwin_wayland. After installing
needed debug symbol packages, here is a backtrace:
Core was generated by `/usr/bin/kwin_wayland --xwayland --libinput
--exit-with-session=/usr/lib/x86_64'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007eff59760f30 in wl_closure_init (message=message@entry=0x7,
size=size@entry=52, num_arrays=num_arrays@entry=0x7eff5140858c,
args=args@entry=0x0) at ../src/connection.c:562
562 ../src/connection.c: No such file or directory.
[Current thread is 1 (Thread 0x7eff51409700 (LWP 7249))]
(gdb) bt
#0 0x00007eff59760f30 in wl_closure_init (message=message@entry=0x7,
size=size@entry=52, num_arrays=num_arrays@entry=0x7eff5140858c,
args=args@entry=0x0) at ../src/connection.c:562
#1 0x00007eff59761aa0 in wl_connection_demarshal (connection=0x7eff440053e0,
size=size@entry=52, objects=objects@entry=0x7eff440052e8, message=0x7) at
../src/connection.c:698
#2 0x00007eff5975fae8 in queue_event (len=52, display=0x7eff44005270) at
../src/wayland-client.c:1364
#3 read_events (display=0x7eff44005270) at ../src/wayland-client.c:1466
#4 wl_display_read_events (display=display@entry=0x7eff44005270) at
../src/wayland-client.c:1549
#5 0x00007eff59760169 in wl_display_dispatch_queue (display=0x7eff44005270,
queue=0x7eff44005338) at ../src/wayland-client.c:1788
#6 0x00007eff5d123933 in
KWayland::Client::ConnectionThread::Private::<lambda()>::operator()
(__closure=0x7eff44009550) at ./src/client/connection_thread.cpp:129
#7 QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void,
KWayland::Client::ConnectionThread::Private::setupSocketNotifier()::<lambda()>
>::call (arg=<optimized out>,
f=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:128
#8
QtPrivate::Functor<KWayland::Client::ConnectionThread::Private::setupSocketNotifier()::<lambda()>,
0>::call<QtPrivate::List<>, void> (arg=<optimized out>, f=...)
at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:238
#9
QtPrivate::QFunctorSlotObject<KWayland::Client::ConnectionThread::Private::setupSocketNotifier()::<lambda()>,
0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *,
void **, bool *) (which=<optimized out>, this_=0x7eff44009540, r=<optimized
out>, a=<optimized out>, ret=<optimized out>)
at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:421
#10 0x00007eff5e606910 in QtPrivate::QSlotObjectBase::call (a=0x7eff514087d0,
r=0x564a80be84f0, this=0x7eff44009540) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#11 QMetaObject::activate(QObject*, int, int, void**) () at
kernel/qobject.cpp:3754
#12 0x00007eff5e606dd7 in QMetaObject::activate
(sender=sender@entry=0x7eff44009440, m=m@entry=0x7eff5e863c60
<QSocketNotifier::staticMetaObject>,
local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7eff514087d0) at kernel/qobject.cpp:3633
#13 0x00007eff5e611ff9 in QSocketNotifier::activated
(this=this@entry=0x7eff44009440, _t1=<optimized out>, _t2=...) at
.moc/moc_qsocketnotifier.cpp:136
#14 0x00007eff5e612341 in QSocketNotifier::event (this=0x7eff44009440,
e=0x7eff51408a30) at kernel/qsocketnotifier.cpp:266
#15 0x00007eff5e9cb4a1 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007eff5e9d2ae0 in QApplication::notify(QObject*, QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007eff5e5dd579 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at
../../include/QtCore/5.11.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:307
#18 0x00007eff5e62fe4a in QCoreApplication::sendEvent (event=0x7eff51408a30,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#19 socketNotifierSourceDispatch(_GSource*, int (*)(void*), void*) () at
kernel/qeventdispatcher_glib.cpp:106
#20 0x00007eff5a647287 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007eff5a6474c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007eff5a64754c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007eff5e62f223 in QEventDispatcherGlib::processEvents
(this=0x7eff44000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#24 0x00007eff5e5dc24b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
../../include/QtCore/../../src/corelib/global/qflags.h:140
#25 0x00007eff5e42b176 in QThread::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:120
#26 0x00007eff5e434d47 in QThreadPrivate::start(void*) () at
thread/qthread_unix.cpp:367
#27 0x00007eff5efb5f2a in start_thread (arg=0x7eff51409700) at
pthread_create.c:463
#28 0x00007eff5e0fdedf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
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