https://bugs.kde.org/show_bug.cgi?id=436287
Bug ID: 436287
Summary: Crash when opening Discover (maybe fwupd?) with a
tablet connected
Product: kwin
Version: git master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: aleix...@kde.org
Target Milestone: ---
Below is the backtrace, I reproduced it once when running fwupdmgr (which
Discover supports as well as a backend). It somehow re-adds a tablet.
I haven't been able to put my finger where the problem is exactly.
#0 KWaylandServer::TabletSeatV2Interface::addTabletPad(QString const&, QString
const&, QStringList const&, unsigned int, unsigned int, unsigned int, unsigned
int, unsigned int, KWaylandServer::TabletV2Interface*)
(this=0x561f8dc3ddc0, sysname=<optimized out>, name=<optimized out>,
paths=<optimized out>, buttons=<optimized out>, rings=<optimized out>,
strips=<optimized out>, modes=<optimized out>, currentMode=<optimized out>,
tablet=<optimized out>) at
/home/apol/devel/frameworks/kwayland-server/src/server/tablet_v2_interface.cpp:727
#1 0x00007f56fb991807 in
KWin::TabletInputFilter::integrateDevice(KWin::LibInput::Device*)
(this=0x561f8da42870, device=0x561f8d93ed90) at
/home/apol/devel/frameworks/kwin/src/input.cpp:1612
#2 0x00007f56fb9a3fec in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>,
QtPrivate::List<KWin::LibInput::Device*>, void, void
(KWin::TabletInputFilter::*)(KWin::LibInput::Device*)>::call(void
(KWin::TabletInputFilter::*)(KWin::LibInput::Device*),
KWin::TabletInputFilter*, void**) (f=
(void (KWin::TabletInputFilter::*)(KWin::TabletInputFilter * const,
KWin::LibInput::Device *)) 0x7f56fb9913e0
<KWin::TabletInputFilter::integrateDevice(KWin::LibInput::Device*)>,
o=0x561f8da42870, arg=0x7ffc0f57d760) at
/home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:152
#3 0x00007f56fb9a3f48 in QtPrivate::FunctionPointer<void
(KWin::TabletInputFilter::*)(KWin::LibInput::Device*)>::call<QtPrivate::List<KWin::LibInput::Device*>,
void>(void (KWin::TabletInputFilter::*)(KWin::LibInput::Device*),
KWin::TabletInputFilter*, void**) (f=
(void (KWin::TabletInputFilter::*)(KWin::TabletInputFilter * const,
KWin::LibInput::Device *)) 0x7f56fb9913e0
<KWin::TabletInputFilter::integrateDevice(KWin::LibInput::Device*)>,
o=0x561f8da42870, arg=0x7ffc0f57d760) at
/home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:185
#4 0x00007f56fb9a3e75 in QtPrivate::QSlotObject<void
(KWin::TabletInputFilter::*)(KWin::LibInput::Device*),
QtPrivate::List<KWin::LibInput::Device*>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1,
this_=0x561f8da9d5a0, r=0x561f8da42870, a=0x7ffc0f57d760, ret=0x0)
at /home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:418
#5 0x00007f56f89163d6 in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7ffc0f57d760, r=0x561f8da42870, this=0x561f8da9d5a0) at
../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/kernel/qobjectdefs_impl.h:398
#6 doActivate<false>(QObject*, int, void**) (sender=0x561f8cf19180,
signal_index=18, argv=0x7ffc0f57d760) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qobject.cpp:3886
#7 0x00007f56fb853136 in
KWin::LibInput::Connection::deviceAdded(KWin::LibInput::Device*)
(this=0x561f8cf19180, _t1=0x561f8d93ed90) at
src/kwin_autogen/PCJB6APXE6/moc_connection.cpp:724
#8 0x00007f56fb9e2773 in KWin::LibInput::Connection::processEvents()
(this=0x561f8cf19180) at
/home/apol/devel/frameworks/kwin/src/libinput/connection.cpp:376
#9 0x00007f56fb98edfc in
KWin::InputRedirection::setupLibInput()::$_3::operator()() const
(this=0x561f8cf317a0) at /home/apol/devel/frameworks/kwin/src/input.cpp:2315
#10 0x00007f56fb98eda6 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void,
KWin::InputRedirection::setupLibInput()::$_3>::call(KWin::InputRedirection::setupLibInput()::$_3&,
void**) (f=..., arg=0x7f56e801b028) at
/home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:146
#11 0x00007f56fb98ed71 in
QtPrivate::Functor<KWin::InputRedirection::setupLibInput()::$_3,
0>::call<QtPrivate::List<>,
void>(KWin::InputRedirection::setupLibInput()::$_3&, void*, void**) (f=...,
arg=0x7f56e801b028) at
/home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:256
#12 0x00007f56fb98ed1c in
QtPrivate::QFunctorSlotObject<KWin::InputRedirection::setupLibInput()::$_3, 0,
QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*) (which=1, this_=0x561f8cf31790, r=0x561f8cee6540,
a=0x7f56e801b028, ret=0x0) at
/home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:443
#13 0x00007f56f890be21 in QObject::event(QEvent*) (this=0x561f8cee6540,
e=0x7f56e801afe0) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qobject.cpp:1314
#14 0x00007f56f98aa17f in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=<optimized out>, receiver=0x561f8cee6540, e=0x7f56e801afe0) at
/home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3632
#15 0x00007f56f88dfdfa in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x561f8cee6540, event=0x7f56e801afe0) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1064
#16 0x00007f56f88e2831 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) (receiver=0x0, event_type=0, data=0x561f8ce17580) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1821
#17 0x00007f56f89346aa in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x561f8ce58150, flags=...) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_unix.cpp:468
#18 0x0000561f8cb706fd in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at
/home/apol/devel/frameworks/qt5/qtbase/src/platformsupport/eventdispatchers/qunixeventdispatcher.cpp:63
#19 0x00007f56f88de7ab in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffc0f57e050, flags=..., flags@entry=...) at
../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/global/qflags.h:69
#20 0x00007f56f88e6a30 in QCoreApplication::exec() () at
../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/global/qflags.h:121
#21 0x0000561f8cb3f3f0 in main(int, char**) (argc=5, argv=0x7ffc0f57eb78) at
/home/apol/devel/frameworks/kwin/src/main_wayland.cpp:729
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