https://bugs.kde.org/show_bug.cgi?id=430699

            Bug ID: 430699
           Summary: KWin stopped after going to sleep
           Product: kwin
           Version: 5.20.4
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Application: kwin_x11 (5.20.4)

Qt Version: 5.15.2
Frameworks Version: 5.77.0
Operating System: Linux 5.4.0-58-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.20

-- Information about the crash:
- What I was doing when the application crashed:

Bug occured after logging in after sleep. Causes VisualStudio Code to fail
rendering [artifacts]

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault

[New LWP 1604]
[New LWP 1606]
[New LWP 1657]
[New LWP 1754]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f72703e0aff in __GI___poll (fds=0x7fffc123fbe8, nfds=1, timeout=1000) at
../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f726a8998c0 (LWP 1601))]

Thread 5 (Thread 0x7f7261b7e700 (LWP 1754)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x7f727019dfd8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f727019df88,
cond=0x7f727019dfb0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f727019dfb0, mutex=0x7f727019df88) at
pthread_cond_wait.c:638
#3  0x00007f72700a063a in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f72700a065f in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f726fb96609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f72703ed293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f7262dee700 (LWP 1657)):
#0  0x00007f72703e0bf6 in __ppoll (fds=fds@entry=0x7f7250000d78,
nfds=nfds@entry=1, timeout=<optimized out>, timeout@entry=0x0,
sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:44
#1  0x00007f72709d3eb9 in ppoll (__ss=<optimized out>, __timeout=<optimized
out>, __nfds=<optimized out>, __fds=<optimized out>) at
/usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7f7250000d78) at
kernel/qcore_unix.cpp:132
#3  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7f7250000d78) at
kernel/qcore_unix.cpp:129
#4  qt_safe_poll(pollfd*, unsigned long, timespec const*) (fds=0x7f7250000d78,
nfds=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:155
#5  0x00007f72709d5563 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at
../../include/QtCore/../../src/corelib/tools/qarraydata.h:211
#6  0x00007f727097c1ab in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f7262dedcc0, flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f7270796a12 in QThread::exec() (this=<optimized out>) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f726f11ffa9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f7270797bac in QThreadPrivate::start(void*) (arg=0x5613a5a3b740) at
thread/qthread_unix.cpp:329
#10 0x00007f726fb96609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#11 0x00007f72703ed293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f7268f8f700 (LWP 1606)):
#0  0x00007f72703e0bf6 in __ppoll (fds=fds@entry=0x7f725c00c108,
nfds=nfds@entry=1, timeout=<optimized out>, timeout@entry=0x0,
sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:44
#1  0x00007f72709d3eb9 in ppoll (__ss=<optimized out>, __timeout=<optimized
out>, __nfds=<optimized out>, __fds=<optimized out>) at
/usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7f725c00c108) at
kernel/qcore_unix.cpp:132
#3  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7f725c00c108) at
kernel/qcore_unix.cpp:129
#4  qt_safe_poll(pollfd*, unsigned long, timespec const*) (fds=0x7f725c00c108,
nfds=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:155
#5  0x00007f72709d5563 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at
../../include/QtCore/../../src/corelib/tools/qarraydata.h:211
#6  0x00007f727097c1ab in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f7268f8ecb0, flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f7270796a12 in QThread::exec() (this=<optimized out>) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f7271ac1f4b in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f7270797bac in QThreadPrivate::start(void*) (arg=0x7f7271b45d80) at
thread/qthread_unix.cpp:329
#10 0x00007f726fb96609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#11 0x00007f72703ed293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f7269eac700 (LWP 1604)):
#0  0x00007f72703e0aff in __GI___poll (fds=0x7f7269eabbe8, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f72706a9c1a in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f72706ab90a in xcb_wait_for_event () at
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f7269f87d58 in QXcbEventQueue::run() (this=0x5613a5588010) at
qxcbeventqueue.cpp:228
#4  0x00007f7270797bac in QThreadPrivate::start(void*) (arg=0x5613a5588010) at
thread/qthread_unix.cpp:329
#5  0x00007f726fb96609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f72703ed293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f726a8998c0 (LWP 1601)):
[KCrash Handler]
#4  0x00007f727027c449 in KWin::ContrastEffect::uploadRegion(QVector2D*&,
QRegion const&) (this=this@entry=0x5613a57d2d30, map=@0x7fffc1240528:
0x7f726066b520, region=...) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qrect.h:269
#5  0x00007f727027c509 in
KWin::ContrastEffect::uploadGeometry(KWin::GLVertexBuffer*, QRegion const&)
(this=this@entry=0x5613a57d2d30, vbo=vbo@entry=0x5613a582dab0, region=...) at
./effects/backgroundcontrast/contrast.cpp:328
#6  0x00007f727027e342 in KWin::ContrastEffect::doContrast(KWin::EffectWindow*,
QRegion const&, QRect const&, float, QMatrix4x4 const&)
(this=this@entry=0x5613a57d2d30, w=w@entry=0x7f725c0114e0, shape=...,
screen=..., opacity=1, screenProjection=...) at
./effects/backgroundcontrast/contrast.cpp:471
#7  0x00007f727027ec31 in KWin::ContrastEffect::drawWindow(KWin::EffectWindow*,
int, QRegion const&, KWin::WindowPaintData&) (this=0x5613a57d2d30, w=<optimized
out>, mask=<optimized out>, region=..., data=...) at
./effects/backgroundcontrast/contrast.cpp:447
#8  0x00007f7271d8da05 in
KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion const&,
KWin::WindowPaintData&) (this=0x5613a56f1600, w=<optimized out>,
mask=<optimized out>, region=..., data=...) at ./effects.cpp:463
#9  0x00007f72701e6d8e in KWin::BlurEffect::drawWindow(KWin::EffectWindow*,
int, QRegion const&, KWin::WindowPaintData&) (this=<optimized out>,
w=<optimized out>, mask=<optimized out>, region=..., data=...) at
./effects/blur/blur.cpp:593
#10 0x00007f7271d8da05 in
KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion const&,
KWin::WindowPaintData&) (this=0x5613a56f1600, w=<optimized out>,
mask=<optimized out>, region=..., data=...) at ./effects.cpp:463
#11 0x00007f7271d8d8ed in
KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&,
KWin::WindowPaintData&) (this=0x5613a56f1600, w=0x7f725c0114e0, mask=2,
region=..., data=...) at ./effects.cpp:429
#12 0x00007f7271d8d8a7 in
KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&,
KWin::WindowPaintData&) (this=0x5613a56f1600, w=0x7f725c0114e0, mask=2,
region=..., data=...) at ./effects.cpp:426
#13 0x00007f7271d8d8a7 in
KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion const&,
KWin::WindowPaintData&) (this=this@entry=0x5613a56f1600, w=0x7f725c0114e0,
mask=mask@entry=2, region=..., data=...) at ./effects.cpp:426
#14 0x00007f7271e18315 in KWin::Scene::paintWindow(KWin::Scene::Window*, int,
QRegion const&, KWin::WindowQuadList const&) (this=0x7f7264003fa0,
w=0x5613a58c6fe0, mask=2, _region=..., quads=...) at ./scene.cpp:472
#15 0x00007f7271e1570f in KWin::Scene::paintSimpleScreen(int, QRegion const&)
(this=<optimized out>, orig_mask=0, region=...) at ./scene.cpp:384
#16 0x00007f7271e115c6 in KWin::Scene::finalPaintScreen(int, QRegion const&,
KWin::ScreenPaintData&) (this=0x7f7264003fa0, mask=<optimized out>, region=...,
data=...) at ./scene.cpp:188
#17 0x00007f7271d8d6b2 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion
const&, KWin::ScreenPaintData&) (this=0x5613a56f1600, mask=<optimized out>,
region=..., data=...) at ./effects.cpp:383
#18 0x00007f7271d8d6b2 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion
const&, KWin::ScreenPaintData&) (this=0x5613a56f1600, mask=<optimized out>,
region=..., data=...) at ./effects.cpp:383
#19 0x00007f7271e17684 in KWin::Scene::paintScreen(int*, QRegion const&,
QRegion const&, QRegion*, QRegion*, QMatrix4x4 const&, QRect const&, double)
(this=this@entry=0x7f7264003fa0, mask=mask@entry=0x7fffc1240e28, damage=...,
repaint=..., updateRegion=updateRegion@entry=0x7fffc1240e10,
validRegion=validRegion@entry=0x7fffc1240e18, projection=...,
outputGeometry=..., screenScale=1) at ./scene.cpp:135
#20 0x00007f7261b9bc48 in KWin::SceneOpenGL::paint(QRegion const&,
QList<KWin::Toplevel*> const&) (this=0x7f7264003fa0, damage=..., toplevels=...)
at ./plugins/scenes/opengl/scene_opengl.h:115
#21 0x00007f7271d53b3f in KWin::Compositor::performCompositing()
(this=0x5613a5710120) at ./composite.cpp:689
#22 0x00007f72709ab155 in QObject::event(QEvent*) (this=0x5613a5710120,
e=0x7fffc1241290) at kernel/qobject.cpp:1336
#23 0x00007f7271454dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x5613a55846f0, receiver=receiver@entry=0x5613a5710120,
e=e@entry=0x7fffc1241290) at kernel/qapplication.cpp:3632
#24 0x00007f727145dbb8 in QApplication::notify(QObject*, QEvent*)
(this=0x7fffc1241510, receiver=0x5613a5710120, e=0x7fffc1241290) at
kernel/qapplication.cpp:3156
#25 0x00007f727097d69a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x5613a5710120, event=0x7fffc1241290) at
../../include/QtCore/5.15.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#26 0x00007f72709d72f0 in QTimerInfoList::activateTimers()
(this=this@entry=0x5613a558be08) at kernel/qtimerinfo_unix.cpp:643
#27 0x00007f72709d49c0 in QEventDispatcherUNIXPrivate::activateTimers()
(this=this@entry=0x5613a558bd80) at kernel/qeventdispatcher_unix.cpp:249
#28 0x00007f72709d56b7 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:516
#29 0x00007f7269f89132 in
QXcbUnixEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x5613a5645f70, flags=...) at qxcbeventdispatcher.cpp:60
#30 0x00007f727097c1ab in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fffc1241430, flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#31 0x00007f7270984354 in QCoreApplication::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#32 0x00005613a51cea2d in main(int, char**) (argc=<optimized out>,
argv=0x7fffc12416b8) at ./main_x11.cpp:484
[Inferior 1 (process 1601) detached]

The reporter indicates this bug may be a duplicate of or related to bug 423295,
bug 416498, bug 416472.

Possible duplicates by query: bug 423295, bug 419177, bug 418068, bug 416886,
bug 416498.

Reported using DrKonqi

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