https://bugs.kde.org/show_bug.cgi?id=451571
Bug ID: 451571
Summary: kwin_wayland crashes when disconnecting monitor
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: nicolas.fe...@gmx.de
Target Milestone: ---
Sometimes when unplugging an external monitor kwin crashes
#0 KWin::DrmPipeline::pageFlipped(std::chrono::duration<long, std::ratio<1l,
1000000000l> >) (this=0x55631c6ac5f0, timestamp=...) at
/home/nico/kde/src/kwin/src/backends/drm/drm_pipeline.cpp:414
#1 0x00007ff468805fcd in KWin::DrmPipeline::~DrmPipeline()
(this=0x55631c6ac5f0, __in_chrg=<optimized out>) at
/home/nico/kde/src/kwin/src/backends/drm/drm_pipeline.cpp:43
#2 0x00007ff4687e45bc in
QScopedPointerDeleter<KWin::DrmPipeline>::cleanup(KWin::DrmPipeline*)
(pointer=0x55631c6ac5f0) at
/home/nico/kde/usr/include/QtCore/qscopedpointer.h:60
#3 0x00007ff4687e32ff in QScopedPointer<KWin::DrmPipeline,
QScopedPointerDeleter<KWin::DrmPipeline> >::~QScopedPointer()
(this=0x55631c6ac1f8, __in_chrg=<optimized out>) at
/home/nico/kde/usr/include/QtCore/qscopedpointer.h:107
#4 0x00007ff4687e5dbc in KWin::DrmConnector::~DrmConnector()
(this=0x55631c6ac1d0, __in_chrg=<optimized out>) at
/home/nico/kde/src/kwin/src/backends/drm/drm_object_connector.h:54
#5 0x00007ff4687e5de4 in KWin::DrmConnector::~DrmConnector()
(this=0x55631c6ac1d0, __in_chrg=<optimized out>) at
/home/nico/kde/src/kwin/src/backends/drm/drm_object_connector.h:54
#6 0x00007ff4687f58a4 in KWin::DrmGpu::updateOutputs() (this=0x55631c43b320)
at /home/nico/kde/src/kwin/src/backends/drm/drm_gpu.cpp:297
#7 0x00007ff4687cc753 in KWin::DrmBackend::updateOutputs()
(this=0x55631c427cf0) at
/home/nico/kde/src/kwin/src/backends/drm/drm_backend.cpp:314
#8 0x00007ff4687cc018 in KWin::DrmBackend::handleUdevEvent()
(this=0x55631c427cf0) at
/home/nico/kde/src/kwin/src/backends/drm/drm_backend.cpp:256
#9 0x00007ff4687d865e in QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void, void (KWin::DrmBackend::*)()>::call(void
(KWin::DrmBackend::*)(), KWin::DrmBackend*, void**)
(f=(void (KWin::DrmBackend::*)(KWin::DrmBackend * const)) 0x7ff4687cb96a
<KWin::DrmBackend::handleUdevEvent()>, o=0x55631c427cf0, arg=0x7ffdd5caaa20) at
/home/nico/kde/usr/include/QtCore/qobjectdefs_impl.h:152
#10 0x00007ff4687d795a in QtPrivate::FunctionPointer<void
(KWin::DrmBackend::*)()>::call<QtPrivate::List<>, void>(void
(KWin::DrmBackend::*)(), KWin::DrmBackend*, void**)
(f=(void (KWin::DrmBackend::*)(KWin::DrmBackend * const)) 0x7ff4687cb96a
<KWin::DrmBackend::handleUdevEvent()>, o=0x55631c427cf0, arg=0x7ffdd5caaa20) at
/home/nico/kde/usr/include/QtCore/qobjectdefs_impl.h:185
#11 0x00007ff4687d65ad in QtPrivate::QSlotObject<void (KWin::DrmBackend::*)(),
QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*)
(which=1, this_=0x55631c43b2d0, r=0x55631c427cf0, a=0x7ffdd5caaa20,
ret=0x0) at /home/nico/kde/usr/include/QtCore/qobjectdefs_impl.h:418
#12 0x00007ff46fd66613 in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7ffdd5caaa20, r=0x55631c427cf0, this=0x55631c43b2d0) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#13 doActivate<false>(QObject*, int, void**) (sender=0x55631c439a20,
signal_index=3, argv=0x7ffdd5caaa20) at kernel/qobject.cpp:3886
#14 0x00007ff46fd5fadf in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**)
(sender=sender@entry=0x55631c439a20, m=m@entry=0x7ff470002100
<QSocketNotifier::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdd5caaa20)
at kernel/qobject.cpp:3946
#15 0x00007ff46fd69aff in QSocketNotifier::activated(QSocketDescriptor,
QSocketNotifier::Type, QSocketNotifier::QPrivateSignal)
(this=this@entry=0x55631c439a20, _t1=..., _t2=<optimized out>, _t3=...) at
.moc/moc_qsocketnotifier.cpp:178
#16 0x00007ff46fd6a2fb in QSocketNotifier::event(QEvent*) (this=0x55631c439a20,
e=0x7ffdd5caab40) at kernel/qsocketnotifier.cpp:302
#17 0x00007ff46e92e69f in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=<optimized out>, receiver=0x55631c439a20, e=0x7ffdd5caab40) at
kernel/qapplication.cpp:3632
#18 0x00007ff46fd2fe7a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55631c439a20, event=0x7ffdd5caab40) at
kernel/qcoreapplication.cpp:1064
#19 0x00007ff46fd8487b in
QEventDispatcherUNIXPrivate::activateSocketNotifiers() (this=0x55631c3bced0) at
kernel/qeventdispatcher_unix.cpp:304
#20 0x00007ff46fd84cdb in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:511
#21 0x000055631a3c2bfd in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at qunixeventdispatcher.cpp:63
#22 0x00007ff46fd2e87b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffdd5caacd0, flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:69
#23 0x00007ff46fd36b50 in QCoreApplication::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#24 0x000055631a298805 in main(int, char**) (argc=14, argv=0x7ffdd5cab138) at
/home/nico/kde/src/kwin/src/main_wayland.cpp:727
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