[kde] [Bug 438949] New: Latte dock crash after "desktop effects restart"

Sun Jun 20 15:11:27 BST 2021

https://bugs.kde.org/show_bug.cgi?id=438949

            Bug ID: 438949
           Summary: Latte dock crash after "desktop effects restart"
           Product: kde
           Version: unspecified
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: bertil.bonus at gmail.com
  Target Milestone: ---

Application: latte-dock (0.9.12)

Qt Version: 5.15.3
Frameworks Version: 5.83.0
Operating System: Linux 5.8.0-55-generic x86_64
Windowing System: X11
Drkonqi Version: 5.22.1
Distribution: KDE neon User Edition 5.22

-- Information about the crash:
- Unusual behavior I noticed:

Plasma says "Desktop effects restarted" after comning out of of sleep.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Latte Dock (latte-dock), signal: Segmentation fault

[New LWP 2584]
[New LWP 2620]
[New LWP 2668]
[New LWP 2688]
[New LWP 2693]
[New LWP 2708]
[New LWP 2710]
[New LWP 2747]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x7f9eccd252a4) at ../sysdeps/nptl/futex-internal.h:183
[Current thread is 1 (Thread 0x7f9efec1a8c0 (LWP 2526))]

Thread 9 (Thread 0x7f9ea68be700 (LWP 2747)):
[KCrash Handler]
#4  0x00007f9f035c7c48 in QScreen::handle (this=0x563bdf8bc250) at
kernel/qscreen.cpp:182
#5  0x00007f9efe1d89de in QXcbIntegration::createPlatformOpenGLContext
(this=<optimized out>, context=0x563be074de00) at qxcbintegration.cpp:277
#6  0x00007f9f035e5f01 in QOpenGLContext::create (this=0x563be074de00) at
../../include/QtGui/5.15.3/QtGui/private/../../../../../src/gui/kernel/qguiapplication_p.h:110
#7  0x00007f9f04cc7cb8 in QSGRenderThread::sync
(this=this at entry=0x563be1a63f00, inExpose=inExpose at entry=true,
inGrab=inGrab at entry=false) at scenegraph/qsgthreadedrenderloop.cpp:620
#8  0x00007f9f04cc9d67 in QSGRenderThread::syncAndRender (this=0x563be1a63f00,
grabImage=0x0) at scenegraph/qsgthreadedrenderloop.cpp:778
#9  0x00007f9f04ccdf77 in QSGRenderThread::run (this=0x563be1a63f00) at
scenegraph/qsgthreadedrenderloop.cpp:1043
#10 0x00007f9f02e6ed4c in QThreadPrivate::start (arg=0x563be1a63f00) at
thread/qthread_unix.cpp:329
#11 0x00007f9f01d28609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#12 0x00007f9f029a1293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f9ea79ff700 (LWP 2710)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x563be1b643c0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x563be1b64370,
cond=0x563be1b64398) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x563be1b64398, mutex=0x563be1b64370) at
pthread_cond_wait.c:647
#3  0x00007f9f02e74ebb in QWaitConditionPrivate::wait (deadline=...,
this=0x563be1b64370) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this at entry=0x563be1b64928,
mutex=mutex at entry=0x563be1b64920, deadline=...) at
thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f04ccdb44 in QSGRenderThreadEventQueue::takeEvent (wait=true,
this=0x563be1b64918) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore
(this=this at entry=0x563be1b64880) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f9f04ccdfb9 in QSGRenderThread::run (this=0x563be1b64880) at
scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f9f02e6ed4c in QThreadPrivate::start (arg=0x563be1b64880) at
thread/qthread_unix.cpp:329
#9  0x00007f9f01d28609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#10 0x00007f9f029a1293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9ec8efa700 (LWP 2708)):
#0  0x00007f9f02994aff in __GI___poll (fds=0x7f9ea0004240, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9f0102636e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9f010264a3 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f030afb3b in QEventDispatcherGlib::processEvents
(this=0x7f9ea0000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f9f03053dcb in QEventLoop::exec (this=this at entry=0x7f9ec8ef9cc0,
flags=..., flags at entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f9f02e6dbb2 in QThread::exec (this=<optimized out>) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f9f04951559 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f9f02e6ed4c in QThreadPrivate::start (arg=0x563bdfb4e050) at
thread/qthread_unix.cpp:329
#8  0x00007f9f01d28609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#9  0x00007f9f029a1293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f9ec97fb700 (LWP 2693)):
#0  0x00007f9f0299712b in __GI___select (nfds=59, readfds=0x7f9ec97faca0,
writefds=0x0, exceptfds=0x0, timeout=0x7f9ec97fac90) at
../sysdeps/unix/sysv/linux/select.c:41
#1  0x00007f9ef6e69991 in ?? () from
/usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.460.84
#2  0x00007f9ef6e6747a in ?? () from
/usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.460.84
#3  0x00007f9f01d28609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#4  0x00007f9f029a1293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f9ed19bd700 (LWP 2688)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x563be0c62714) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x563be0c626c0,
cond=0x563be0c626e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x563be0c626e8, mutex=0x563be0c626c0) at
pthread_cond_wait.c:647
#3  0x00007f9f02e74ebb in QWaitConditionPrivate::wait (deadline=...,
this=0x563be0c626c0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this at entry=0x563be0bb48d8,
mutex=mutex at entry=0x563be0bb48d0, deadline=...) at
thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f04ccdb44 in QSGRenderThreadEventQueue::takeEvent (wait=true,
this=0x563be0bb48c8) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore
(this=this at entry=0x563be0bb4830) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f9f04ccdfb9 in QSGRenderThread::run (this=0x563be0bb4830) at
scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f9f02e6ed4c in QThreadPrivate::start (arg=0x563be0bb4830) at
thread/qthread_unix.cpp:329
#9  0x00007f9f01d28609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#10 0x00007f9f029a1293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f9eefa7f700 (LWP 2668)):
#0  0x00007f9f010734dd in g_mutex_lock () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9f01025f2a in g_main_context_dispatch () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9f01026400 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f010264a3 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9f030afb3b in QEventDispatcherGlib::processEvents
(this=0x7f9ee8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f9f03053dcb in QEventLoop::exec (this=this at entry=0x7f9eefa7ecc0,
flags=..., flags at entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f9f02e6dbb2 in QThread::exec (this=<optimized out>) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f9f04951559 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f9f02e6ed4c in QThreadPrivate::start (arg=0x563bdfa3e850) at
thread/qthread_unix.cpp:329
#9  0x00007f9f01d28609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#10 0x00007f9f029a1293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f9efcea0700 (LWP 2620)):
#0  0x00007f9f030af9e8 in postEventSourcePrepare (s=0x7f9ef0004bb0,
timeout=0x7f9efce9fae4) at kernel/qeventdispatcher_glib.cpp:252
#1  0x00007f9f010258ef in g_main_context_prepare () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9f0102629b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9f010264a3 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9f030afb3b in QEventDispatcherGlib::processEvents
(this=0x7f9ef0000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f9f03053dcb in QEventLoop::exec (this=this at entry=0x7f9efce9fcb0,
flags=..., flags at entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f9f02e6dbb2 in QThread::exec (this=this at entry=0x7f9f03395d80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f9f03311f4b in QDBusConnectionManager::run (this=0x7f9f03395d80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:179
#8  0x00007f9f02e6ed4c in QThreadPrivate::start (arg=0x7f9f03395d80 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:329
#9  0x00007f9f01d28609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#10 0x00007f9f029a1293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f9efdad5700 (LWP 2584)):
#0  0x00007f9f02994aff in __GI___poll (fds=0x7f9efdad4be8, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9f05144c1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f9f0514690a in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f9efe1ffe88 in QXcbEventQueue::run (this=0x563bdf7c5570) at
qxcbeventqueue.cpp:228
#4  0x00007f9f02e6ed4c in QThreadPrivate::start (arg=0x563bdf7c5570) at
thread/qthread_unix.cpp:329
#5  0x00007f9f01d28609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007f9f029a1293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f9efec1a8c0 (LWP 2526)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x7f9eccd252a4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f9eccd25250,
cond=0x7f9eccd25278) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f9eccd25278, mutex=0x7f9eccd25250) at
pthread_cond_wait.c:647
#3  0x00007f9f02e74ebb in QWaitConditionPrivate::wait (deadline=...,
this=0x7f9eccd25250) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x563be1a63f58,
deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f9f04ccc137 in QSGThreadedRenderLoop::polishAndSync
(this=this at entry=0x563bdfe716c0, w=w at entry=0x7f9ef800f080,
inExpose=inExpose at entry=true) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  0x00007f9f04ccd028 in QSGThreadedRenderLoop::handleExposure
(this=0x563bdfe716c0, window=<optimized out>) at
scenegraph/qsgthreadedrenderloop.cpp:1375
#7  0x00007f9f04ccda3b in QSGThreadedRenderLoop::exposureChanged
(this=0x563bdfe716c0, window=0x563be0650430) at
scenegraph/qsgthreadedrenderloop.cpp:1269
#8  0x00007f9f035abe1d in QWindow::event (this=this at entry=0x563be0650430,
ev=ev at entry=0x7ffe57e967e0) at kernel/qwindow.cpp:2438
#9  0x00007f9f04d37e9b in QQuickWindow::event (this=0x563be0650430,
e=0x7ffe57e967e0) at items/qquickwindow.cpp:1902
#10 0x00007f9f053b9473 in PlasmaQuick::Dialog::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#11 0x00007f9f03e28dc3 in QApplicationPrivate::notify_helper
(this=this at entry=0x563bdf7c0bd0, receiver=receiver at entry=0x563be0650430,
e=e at entry=0x7ffe57e967e0) at kernel/qapplication.cpp:3632
#12 0x00007f9f03e31bb8 in QApplication::notify (this=0x7ffe57e96dd0,
receiver=0x563be0650430, e=0x7ffe57e967e0) at kernel/qapplication.cpp:3156
#13 0x00007f9f030552ca in QCoreApplication::notifyInternal2
(receiver=0x563be0650430, event=0x7ffe57e967e0) at
../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#14 0x00007f9f035a1823 in QGuiApplicationPrivate::processExposeEvent
(e=0x563be1ddce50) at kernel/qguiapplication.cpp:3258
#15 0x00007f9f035a1a5b in QGuiApplicationPrivate::processWindowSystemEvent
(e=0x563be1ddce50) at kernel/qguiapplication.cpp:2070
#16 0x00007f9f035797ac in QWindowSystemInterface::sendWindowSystemEvents
(flags=flags at entry=...) at kernel/qwindowsysteminterface.cpp:1169
#17 0x00007f9efe200eae in xcbSourceDispatch (source=<optimized out>) at
qxcbeventdispatcher.cpp:105
#18 0x00007f9f0102617d in g_main_context_dispatch () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f9f01026400 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f9f010264a3 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f9f030afb22 in QEventDispatcherGlib::processEvents
(this=0x563bdf8e9470, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#22 0x00007f9f03053dcb in QEventLoop::exec (this=this at entry=0x7ffe57e96ac0,
flags=..., flags at entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#23 0x00007f9f0305bf84 in QCoreApplication::exec () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#24 0x0000563bded5c41b in main (argc=<optimized out>, argv=<optimized out>) at
./app/main.cpp:285
[Inferior 1 (process 2526) detached]

The reporter indicates this bug may be a duplicate of or related to bug 433050.

Reported using DrKonqi
This report was filed against 'kde' because the product 'latte-dock' could not
be located in Bugzilla. Add it to drkonqi's mappings file!

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