Bug 426905

Summary: Plasma crashed on Wayland on switching to another virtual desktop
Product: [Plasma] plasmashell Reporter: Patrick Silva <bugseforuns>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED FIXED    
Severity: crash CC: kde, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.19.90   
Target Milestone: 1.0   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Patrick Silva 2020-09-23 13:39:48 UTC 
Application: plasmashell (5.19.90)

Qt Version: 5.15.0
Frameworks Version: 5.75.0
Operating System: Linux 5.4.0-47-generic x86_64
Windowing system: Wayland
Distribution: KDE neon Unstable Edition

-- Information about the crash:
- What I was doing when the application crashed:
I switched to vd 2, opened task manager settings, switched back to vd 1, Plasma crashed.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Content of s_kcrashErrorMessage: (null)
[New LWP 55914]
[New LWP 55959]
[New LWP 56100]
[New LWP 56101]
[New LWP 56102]
[New LWP 56103]
[New LWP 56106]
[New LWP 56108]
[New LWP 56109]
[New LWP 56117]
[New LWP 56123]
[New LWP 56127]
[New LWP 56140]
[New LWP 56956]
[New LWP 56960]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f7190080aff in __GI___poll (fds=fds@entry=0x7ffdebf578e8, nfds=nfds@entry=1, timeout=timeout@entry=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f718c785340 (LWP 55885))]

Thread 16 (Thread 0x7f7161f38700 (LWP 56960)):
#0  0x00007f7190080aff in __GI___poll (fds=0x7f714806c280, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f718e9d01ae in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f718e9d02e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f719064aeab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7148134e90, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f71905ef1bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f7161f37d80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f719040d082 in QThread::exec() (this=this@entry=0x55974f3cd970) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f7191d3b6c9 in QQmlThreadPrivate::run() (this=0x55974f3cd970) at qml/ftw/qqmlthread.cpp:155
#7  0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x55974f3cd970) at thread/qthread_unix.cpp:342
#8  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f7162f3a700 (LWP 56956)):
#0  __GI___libc_write (nbytes=135, buf=0x7f7162f39850, fd=2) at ../sysdeps/unix/sysv/linux/write.c:26
#1  __GI___libc_write (fd=2, buf=0x7f7162f39850, nbytes=135) at ../sysdeps/unix/sysv/linux/write.c:24
#2  0x00007f718fffd00d in _IO_new_file_write (f=0x7f71901575c0 <_IO_2_1_stderr_>, data=0x7f7162f39850, n=135) at fileops.c:1176
#3  0x00007f718fffd928 in new_do_write (to_do=<optimized out>, data=0x7f7162f39850 "\033[1;31m[E][000006741.336328][data-loop.c:80 do_loop()] data-loop 0x5597505f5f90: iterate error -9 (Descritor de arquivo inv\303\241lido)\033[0m\n", fp=0x7f71901575c0 <_IO_2_1_stderr_>) at libioP.h:948
#4  _IO_new_file_xsputn (n=135, data=<optimized out>, f=<optimized out>) at fileops.c:1255
#5  _IO_new_file_xsputn (f=0x7f71901575c0 <_IO_2_1_stderr_>, data=<optimized out>, n=135) at fileops.c:1197
#6  0x00007f718fff0f0b in __GI__IO_fputs (str=str@entry=0x7f7162f39850 "\033[1;31m[E][000006741.336328][data-loop.c:80 do_loop()] data-loop 0x5597505f5f90: iterate error -9 (Descritor de arquivo inv\303\241lido)\033[0m\n", fp=0x7f71901575c0 <_IO_2_1_stderr_>) at libioP.h:948
#7  0x00007f71602222c0 in impl_log_logv (object=0x7f717c4f58d8, level=<optimized out>, file=<optimized out>, line=80, func=0x7f7160295b48 "do_loop", fmt=0x7f7160295a78 "data-loop %p: iterate error %d (%s)", args=0x7f7162f39cb0) at ../spa/plugins/support/logger.c:131
#8  0x00007f716026dab0 in pw_log_log () at /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#9  0x00007f716025a1d3 in  () at /lib/x86_64-linux-gnu/libpipewire-0.3.so.0
#10 0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f7137985700 (LWP 56140)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55974c584fc0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55974c584f70, cond=0x55974c584f98) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55974c584f98, mutex=0x55974c584f70) at pthread_cond_wait.c:638
#3  0x00007f719041410b in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55974c584f70) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55974c5847a8, mutex=mutex@entry=0x55974c5847a0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f7192207154 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55974c584798) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55974c584700) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f71922075c9 in QSGRenderThread::run() (this=0x55974c584700) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x55974c584700) at thread/qthread_unix.cpp:342
#9  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f71448ff700 (LWP 56127)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x559747bd5f10) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x559747bd5ec0, cond=0x559747bd5ee8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x559747bd5ee8, mutex=0x559747bd5ec0) at pthread_cond_wait.c:638
#3  0x00007f719041410b in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x559747bd5ec0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x559747bd5da8, mutex=mutex@entry=0x559747bd5da0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f7192207154 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x559747bd5d98) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x559747bd5d00) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f71922075c9 in QSGRenderThread::run() (this=0x559747bd5d00) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x559747bd5d00) at thread/qthread_unix.cpp:342
#9  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f714604e700 (LWP 56123)):
#0  0x00007f7190080aff in __GI___poll (fds=0x7f7138005240, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f718e9d01ae in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f718e9d02e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f719064aeab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7138000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f71905ef1bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f714604dda0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f719040d082 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x559747e49f00) at thread/qthread_unix.cpp:342
#7  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f7161737700 (LWP 56117)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55974484c230) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55974484c1e0, cond=0x55974484c208) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55974484c208, mutex=0x55974484c1e0) at pthread_cond_wait.c:638
#3  0x00007f719041410b in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55974484c1e0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x559744d20c08, mutex=mutex@entry=0x559744d20c00, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f7192207154 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x559744d20bf8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x559744d20b60) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f71922075c9 in QSGRenderThread::run() (this=0x559744d20b60) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x559744d20b60) at thread/qthread_unix.cpp:342
#9  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f716de39700 (LWP 56109)):
#0  __GI___libc_read (nbytes=16, buf=0x7f716de38b50, fd=34) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=34, buf=0x7f716de38b50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f718ea1889f in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f718e9cfcfe in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f718e9d0152 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f718e9d02e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f719064aeab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7158000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f71905ef1bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f716de38d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007f719040d082 in QThread::exec() (this=this@entry=0x559744b0e0e0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f719214230a in QQuickPixmapReader::run() (this=0x559744b0e0e0) at util/qquickpixmapcache.cpp:1008
#10 0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x559744b0e0e0) at thread/qthread_unix.cpp:342
#11 0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f716e9e5700 (LWP 56108)):
#0  0x00007f7190080aff in __GI___poll (fds=0x7f715c00c750, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f718e9d01ae in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f718e9d02e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f719064aeab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f715c003870, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f71905ef1bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f716e9e4da0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f719040d082 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x559743c4d960) at thread/qthread_unix.cpp:342
#7  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f716f639700 (LWP 56106)):
#0  0x00007f7190080aff in __GI___poll (fds=0x7f7164004a60, nfds=1, timeout=4410) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f718e9d01ae in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f718e9d02e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f719064aeab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7164000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f71905ef1bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f716f638da0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f719040d082 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x5597443cb320) at thread/qthread_unix.cpp:342
#7  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f71827fc700 (LWP 56103)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55974417b138) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55974417b0e8, cond=0x55974417b110) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55974417b110, mutex=0x55974417b0e8) at pthread_cond_wait.c:638
#3  0x00007f718888897b in cnd_wait (mtx=0x55974417b0e8, cond=0x55974417b110) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55974417c5e0) at ../src/util/u_queue.c:275
#5  0x00007f718888858b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f7182ffd700 (LWP 56102)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55974417b138) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55974417b0e8, cond=0x55974417b110) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55974417b110, mutex=0x55974417b0e8) at pthread_cond_wait.c:638
#3  0x00007f718888897b in cnd_wait (mtx=0x55974417b0e8, cond=0x55974417b110) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55974417c5a0) at ../src/util/u_queue.c:275
#5  0x00007f718888858b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f71837fe700 (LWP 56101)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55974417b138) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55974417b0e8, cond=0x55974417b110) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55974417b110, mutex=0x55974417b0e8) at pthread_cond_wait.c:638
#3  0x00007f718888897b in cnd_wait (mtx=0x55974417b0e8, cond=0x55974417b110) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55974417c3a0) at ../src/util/u_queue.c:275
#5  0x00007f718888858b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f7183fff700 (LWP 56100)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55974417b138) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55974417b0e8, cond=0x55974417b110) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55974417b110, mutex=0x55974417b0e8) at pthread_cond_wait.c:638
#3  0x00007f718888897b in cnd_wait (mtx=0x55974417b0e8, cond=0x55974417b110) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x559744050da0) at ../src/util/u_queue.c:275
#5  0x00007f718888858b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f718a99c700 (LWP 55959)):
#0  0x00007f7190080aff in __GI___poll (fds=0x7f717c004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f718e9d01ae in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f718e9d02e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f719064aeab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f717c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f71905ef1bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f718a99bd80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f719040d082 in QThread::exec() (this=this@entry=0x559743adb520) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f7191d3b6c9 in QQmlThreadPrivate::run() (this=0x559743adb520) at qml/ftw/qqmlthread.cpp:155
#7  0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x559743adb520) at thread/qthread_unix.cpp:342
#8  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f718bc2a700 (LWP 55914)):
#0  0x00007f718ea1d368 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f718e9cf721 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f718e9d00db in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f718e9d02e3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f719064aeab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f7184000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f71905ef1bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f718bc29d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f719040d082 in QThread::exec() (this=this@entry=0x7f7191057d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f7190fd4f2b in QDBusConnectionManager::run() (this=0x7f7191057d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#8  0x00007f719040e20c in QThreadPrivate::start(void*) (arg=0x7f7191057d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:342
#9  0x00007f718f480609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f719008d293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f718c785340 (LWP 55885)):
[KCrash Handler]
#6  QQmlData::wasDeleted(QObject const*) (object=0x559744d046c0) at ../../include/QtQml/5.15.0/QtQml/private/../../../../../src/qml/qml/qqmldata_p.h:342
#7  QV4::QObjectWrapper::wrap(QV4::ExecutionEngine*, QObject*) (engine=0x559743c88990, object=0x559744d046c0) at jsruntime/qv4qobjectwrapper_p.h:213
#8  0x00007f7191b06ceb in QV4::ExecutionEngine::fromVariant(QVariant const&) (this=this@entry=0x559743c88990, variant=...) at jsruntime/qv4engine.cpp:1699
#9  0x00007f7191b94517 in loadProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData const&) (v4=0x559743c88990, object=0x559744cd9560, property=...) at jsruntime/qv4qobjectwrapper.cpp:205
#10 0x00007f7191b956b2 in QV4::QObjectWrapper::getQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*, QQmlPropertyData**) (engine=engine@entry=0x559743c88990, qmlContext=qmlContext@entry=0x55974484b9e0, object=0x559744cd9560, name=0x7f7189d5d578, revisionMode=revisionMode@entry=QV4::QObjectWrapper::CheckRevision, hasProperty=hasProperty@entry=0x7ffdebf58337, property=0x0) at jsruntime/qv4qobjectwrapper.cpp:388
#11 0x00007f7191b6ee9b in QV4::QQmlContextWrapper::lookupInParentContextHierarchy(QV4::Lookup*, QV4::ExecutionEngine*, QV4::Value*) (l=<optimized out>, engine=0x559743c88990, base=0x0) at ../../include/QtQml/5.15.0/QtQml/private/../../../../../src/qml/common/qv4staticvalue_p.h:325
#12 0x00007f716de9a0c5 in  ()
#13 0x0000000000000000 in  ()
[Inferior 1 (process 55885) detached]

Possible duplicates by query: bug 425987, bug 425576, bug 425068, bug 424923, bug 424922.

Reported using DrKonqi
Comment 1 David Redondo 2020-10-08 14:36:16 UTC 
Can you reproduce it? Your other crash was fixed by the libksysguard fix. Could be the same when one vd had such a widget maybe?
Comment 2 Patrick Silva 2020-10-09 11:15:02 UTC 
cannot reproduce on neon unstable, let's consider this fixed.