https://bugs.kde.org/show_bug.cgi?id=454103
Bug ID: 454103
Summary: KWin crashes sporadically after switching desktops
using slide effect
Product: kwin
Version: unspecified
Platform: Compiled Sources
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: isma...@gmail.com
Target Milestone: ---
Application: kwin_x11 (5.24.80)
(Compiled from sources)
Qt Version: 5.15.3
Frameworks Version: 5.95.0
Operating System: Linux 5.15.0-30-generic x86_64
Windowing System: X11
Distribution: Ubuntu 22.04 LTS
DrKonqi: 5.24.80 [KCrashBackend]
-- Information about the crash:
After switching desktops using slide effect, KWin crashes sporadically.
This is not common but has happened several times in the last few days (at
least on X11).
I haven't been able to narrow down what may trigger it, or to reproduce it
consistently.
The crash can be reproduced sometimes.
-- Backtrace:
Application: KWin (kwin_x11), signal: Aborted
Content of s_kcrashErrorMessage: std::unique_ptr<char []> = {get() = 0x0}
[KCrash Handler]
#5 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140408050842048)
at ./nptl/pthread_kill.c:44
#6 __pthread_kill_internal (signo=6, threadid=140408050842048) at
./nptl/pthread_kill.c:78
#7 __GI___pthread_kill (threadid=140408050842048, signo=signo@entry=6) at
./nptl/pthread_kill.c:89
#8 0x00007fb350e56476 in __GI_raise (sig=sig@entry=6) at
../sysdeps/posix/raise.c:26
#9 0x00007fb350e3c7f3 in __GI_abort () at ./stdlib/abort.c:79
#10 0x00007fb3522e1ba3 in () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fb3522e0ff0 in qt_assert_x(char const*, char const*, char const*,
int) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fb3537ca923 in KWin::WindowItem::unrefVisible(int)
(this=0x560f0c99cae0, reason=4) at
/home/isma/kde/src/kwin/src/windowitem.cpp:107
#13 0x00007fb3535ed064 in KWin::EffectWindowImpl::unrefVisible(int)
(this=0x7fb34401ae70, reason=4) at /home/isma/kde/src/kwin/src/effects.cpp:1926
#14 0x0000560f0abe7549 in KWin::SlideEffect::finishedSwitching()
(this=0x560f0bfbf4d0) at
/home/isma/kde/src/kwin/src/effects/slide/slide.cpp:389
#15 0x0000560f0abe6ce6 in KWin::SlideEffect::postPaintScreen()
(this=0x560f0bfbf4d0) at
/home/isma/kde/src/kwin/src/effects/slide/slide.cpp:307
#16 0x00007fb3535e75a5 in KWin::EffectsHandlerImpl::postPaintScreen()
(this=0x560f0b6de960) at /home/isma/kde/src/kwin/src/effects.cpp:387
#17 0x0000560f0abb4fb4 in KWin::DimInactiveEffect::postPaintScreen()
(this=0x560f0bfe2d40) at
/home/isma/kde/src/kwin/src/effects/diminactive/diminactive.cpp:155
#18 0x00007fb3535e75a5 in KWin::EffectsHandlerImpl::postPaintScreen()
(this=0x560f0b6de960) at /home/isma/kde/src/kwin/src/effects.cpp:387
#19 0x00007fb3536d92c6 in KWin::Scene::postPaint() (this=0x560f0b3670f0) at
/home/isma/kde/src/kwin/src/scene.cpp:397
#20 0x00007fb3536d7b20 in KWin::SceneDelegate::postPaint()
(this=0x560f0b43f930) at /home/isma/kde/src/kwin/src/scene.cpp:121
#21 0x00007fb353580cd4 in KWin::Compositor::postPaintPass(KWin::RenderLayer*)
(this=0x560f0b345c40, layer=0x560f0b78d560) at
/home/isma/kde/src/kwin/src/composite.cpp:706
#22 0x00007fb353580a7d in KWin::Compositor::composite(KWin::RenderLoop*)
(this=0x560f0b345c40, renderLoop=0x560f0b2790c0) at
/home/isma/kde/src/kwin/src/composite.cpp:677
#23 0x00007fb353581f65 in KWin::X11Compositor::composite(KWin::RenderLoop*)
(this=0x560f0b345c40, renderLoop=0x560f0b2790c0) at
/home/isma/kde/src/kwin/src/composite.cpp:921
#24 0x00007fb35358043c in
KWin::Compositor::handleFrameRequested(KWin::RenderLoop*) (this=0x560f0b345c40,
renderLoop=0x560f0b2790c0) at /home/isma/kde/src/kwin/src/composite.cpp:624
#25 0x00007fb353589639 in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>,
QtPrivate::List<KWin::RenderLoop*>, void, void
(KWin::Compositor::*)(KWin::RenderLoop*)>::call(void
(KWin::Compositor::*)(KWin::RenderLoop*), KWin::Compositor*, void**) (f=(void
(KWin::Compositor::*)(class KWin::Compositor * const, class KWin::RenderLoop
*)) 0x7fb353580408 <KWin::Compositor::handleFrameRequested(KWin::RenderLoop*)>,
o=0x560f0b345c40, arg=0x7ffff15dc250) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:152
#26 0x00007fb353589285 in QtPrivate::FunctionPointer<void
(KWin::Compositor::*)(KWin::RenderLoop*)>::call<QtPrivate::List<KWin::RenderLoop*>,
void>(void (KWin::Compositor::*)(KWin::RenderLoop*), KWin::Compositor*, void**)
(f=(void (KWin::Compositor::*)(class KWin::Compositor * const, class
KWin::RenderLoop *)) 0x7fb353580408
<KWin::Compositor::handleFrameRequested(KWin::RenderLoop*)>, o=0x560f0b345c40,
arg=0x7ffff15dc250) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:185
#27 0x00007fb353588a9f in QtPrivate::QSlotObject<void
(KWin::Compositor::*)(KWin::RenderLoop*), QtPrivate::List<KWin::RenderLoop*>,
void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*)
(which=1, this_=0x560f0b5e7dc0, r=0x560f0b345c40, a=0x7ffff15dc250, ret=0x0) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:418
#28 0x00007fb352542783 in () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007fb35351f3c0 in KWin::RenderLoop::frameRequested(KWin::RenderLoop*)
(this=0x560f0b2790c0, _t1=0x560f0b2790c0) at
/home/isma/kde/build/kwin/src/kwin_autogen/EWIEGA46WW/moc_renderloop.cpp:206
#30 0x00007fb3536be6d3 in KWin::RenderLoopPrivate::dispatch()
(this=0x560f0b27bc20) at /home/isma/kde/src/kwin/src/renderloop.cpp:152
#31 0x00007fb3536bde89 in operator()() const (__closure=0x560f0b2786a0) at
/home/isma/kde/src/kwin/src/renderloop.cpp:32
#32 0x00007fb3536beddb in QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void,
KWin::RenderLoopPrivate::RenderLoopPrivate(KWin::RenderLoop*)::<lambda()>
>::call(struct {...} &, void **) (f=..., arg=0x7ffff15dc450) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:146
#33 0x00007fb3536bedad in
QtPrivate::Functor<KWin::RenderLoopPrivate::RenderLoopPrivate(KWin::RenderLoop*)::<lambda()>,
0>::call<QtPrivate::List<>, void>(struct {...} &, void *, void **) (f=...,
arg=0x7ffff15dc450) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:256
#34 0x00007fb3536bed7c in
QtPrivate::QFunctorSlotObject<KWin::RenderLoopPrivate::RenderLoopPrivate(KWin::RenderLoop*)::<lambda()>,
0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *,
void **, bool *) (which=1, this_=0x560f0b278690, r=0x560f0b2790c0,
a=0x7ffff15dc450, ret=0x0) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:443
#35 0x00007fb352542783 in () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007fb3525467ee in QTimer::timeout(QTimer::QPrivateSignal) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007fb35253832f in QObject::event(QEvent*) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007fb351672713 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x0000560f0aba120f in KWin::ApplicationX11::notify(QObject*, QEvent*)
(this=0x7ffff15dc890, o=0x560f0b27bc38, e=0x7ffff15dc600) at
/home/isma/kde/src/kwin/src/main_x11.cpp:287
#40 0x00007fb35250ae2a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007fb3525633db in QTimerInfoList::activateTimers() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#42 0x00007fb352561897 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007fb34b6a3142 in () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#44 0x00007fb35250974b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007fb352511ce4 in QCoreApplication::exec() () at
/lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x0000560f0aba2af9 in main(int, char**) (argc=3, argv=0x7ffff15dca48) at
/home/isma/kde/src/kwin/src/main_x11.cpp:501
[Inferior 1 (process 17351) detached]
Reported using DrKonqi
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