Application: dolphin (20.03.70)

Qt Version: 5.13.2
Frameworks Version: 5.67.0
Operating System: Linux 5.0.0-37-generic x86_64
Windowing system: Wayland
Distribution: KDE neon Unstable Edition

-- Information about the crash:
- What I was doing when the application crashed:
I was using Wayland session, I opened Dolphin, opened a folder containing a png file,
right-clicked on such png file, selected "Properties", closed "Propperties" window by clicking on "Cancel" button,
closed Dolphin by middle-clicking its entry in the task manager.  Then Plasma shown the crash notification.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd8b30a2800 (LWP 21618))]

Thread 4 (Thread 0x7fd881354700 (LWP 23816)):
#0  0x00007fd8a283d8b6 in pa_fdsem_after_poll () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#1  0x00007fd8a285535d in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#2  0x00007fd8a669a108 in pa_mainloop_dispatch () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fd8a669a4de in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fd8a669a560 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fd8a66a83c9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fd8a2865318 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007fd8a6ae56db in start_thread (arg=0x7fd881354700) at pthread_create.c:463
#8  0x00007fd8b291d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd892522700 (LWP 21621)):
#0  0x00007fd8a6aeb9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55f98dc41818) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55f98dc417c8, cond=0x55f98dc417f0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55f98dc417f0, mutex=0x55f98dc417c8) at pthread_cond_wait.c:655
#3  0x00007fd893641c3b in cnd_wait (mtx=0x55f98dc417c8, cond=0x55f98dc417f0) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55f98dfafad0) at ../src/util/u_queue.c:258
#5  0x00007fd893641837 in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007fd8a6ae56db in start_thread (arg=0x7fd892522700) at pthread_create.c:463
#7  0x00007fd8b291d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd89b3bc700 (LWP 21620)):
#0  0x00007fd8b2910bf9 in __GI___poll (fds=0x7fd894003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd8a46fc5c9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd894003ce0, timeout=<optimized out>, context=0x7fd894000bf0) at ../../../../glib/gmain.c:4203
#2  g_main_context_iterate (context=context@entry=0x7fd894000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3897
#3  0x00007fd8a46fc6dc in g_main_context_iteration (context=0x7fd894000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#4  0x00007fd8ac5b8acb in QEventDispatcherGlib::processEvents (this=0x7fd894000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd8ac558f9a in QEventLoop::exec (this=this@entry=0x7fd89b3bbd70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007fd8ac3743aa in QThread::exec (this=this@entry=0x7fd8acca6d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:531
#7  0x00007fd8aca2f0e5 in QDBusConnectionManager::run (this=0x7fd8acca6d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007fd8ac375b52 in QThreadPrivate::start (arg=0x7fd8acca6d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:360
#9  0x00007fd8a6ae56db in start_thread (arg=0x7fd89b3bc700) at pthread_create.c:463
#10 0x00007fd8b291d88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd8b30a2800 (LWP 21618)):
[KCrash Handler]
#6  0x0000000000000020 in ?? ()
#7  0x00007fd89b80fe2f in qDeleteAll<QMap<QWidget*, KWindowShadow*>::const_iterator> (end=..., begin=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:320
#8  qDeleteAll<QMap<QWidget*, KWindowShadow*> > (c=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:328
#9  Breeze::ShadowHelper::~ShadowHelper (this=0x55f98dbb9ba0, __in_chrg=<optimized out>) at ./kstyle/breezeshadowhelper.cpp:105
#10 0x00007fd89b80ff59 in Breeze::ShadowHelper::~ShadowHelper (this=0x55f98dbb9ba0, __in_chrg=<optimized out>) at ./kstyle/breezeshadowhelper.cpp:106
#11 0x00007fd89b81e916 in Breeze::Style::~Style (this=0x55f98dbcde60, __in_chrg=<optimized out>) at ./kstyle/breezestyle.cpp:200
#12 0x00007fd89b81e9d9 in Breeze::Style::~Style (this=0x55f98dbcde60, __in_chrg=<optimized out>) at ./kstyle/breezestyle.cpp:202
#13 0x00007fd8ad82c845 in QApplication::~QApplication (this=0x7fff97b9d5e0, __in_chrg=<optimized out>) at kernel/qapplication.cpp:818
#14 0x00007fd8b2c33b25 in kdemain (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:68
#15 0x00007fd8b281db97 in __libc_start_main (main=0x55f98cc90720 <main>, argc=1, argv=0x7fff97b9d748, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff97b9d738) at ../csu/libc-start.c:310
#16 0x000055f98cc9075a in _start ()

Possible duplicates by query: bug 416854, bug 416836, bug 416816, bug 416730, bug 416715.

Reported using DrKonqi