Application: kmail (5.10.3)

Qt Version: 5.12.2
Frameworks Version: 5.56.0
Operating System: Linux 5.0.2-1-default x86_64
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
- What I was doing when the application crashed:
Launched kmail and vivavldi,
once kmail finished getting all emails an received the notification of the count on incoming emails, i clicked on Inbox, pressed Ctrl + A to select all and then pressed "Apply All Filters" on my toolbar and then switched to browser while it filtered. It crashed fairly quickly but after it had filtered all 81 messages (i relaunched kmail to check)

The crash does not seem to be reproducible.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
29	  return SYSCALL_CANCEL (poll, fds, nfds, timeout);
[Current thread is 1 (Thread 0x7fb67c8caf40 (LWP 1897))]

Thread 23 (Thread 0x7fb594f54700 (LWP 2376)):
#0  0x00007fb68bfc3ae9 in __GI___poll (fds=0x7fb660003ae0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb688f26e36 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fb688f26f5c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fb68c4f3e7b in QEventDispatcherGlib::processEvents (this=0x7fb660000d70, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb68c49f3cb in QEventLoop::exec (this=this@entry=0x7fb594f53b60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fb68c2ea016 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fb68c2eb362 in QThreadPrivate::start (arg=0x5602ced74a40) at thread/qthread_unix.cpp:361
#7  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fb616dfe700 (LWP 2375)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fb6807a4fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb6807a4f68, cond=0x7fb6807a4f90) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb6807a4f90, mutex=0x7fb6807a4f68) at pthread_cond_wait.c:655
#3  0x00007fb6806b11da in ?? () from /usr/lib64/libQt5Script.so.5
#4  0x00007fb6806b11fb in ?? () from /usr/lib64/libQt5Script.so.5
#5  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fb62f7fe700 (LWP 1979)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fb62f7fda88) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb62f7fda38, cond=0x7fb62f7fda60) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb62f7fda60, mutex=0x7fb62f7fda38) at pthread_cond_wait.c:655
#3  0x00007fb6835d0719 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007fb6835d1148 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007fb6835d11df in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007fb68358ebe8 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007fb683591516 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007fb683591854 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fb62ffff700 (LWP 1968)):
#0  0x00007fb67e1f6c6d in ?? () from /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#1  0x00007fb67e1f773f in pa_fdsem_after_poll () from /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#2  0x00007fb67e20f35d in ?? () from /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#3  0x00007fb6800b8ca8 in pa_mainloop_dispatch () from /usr/lib64/libpulse.so.0
#4  0x00007fb6800b8f7c in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0
#5  0x00007fb6800b9020 in pa_mainloop_run () from /usr/lib64/libpulse.so.0
#6  0x00007fb6800c7039 in ?? () from /usr/lib64/libpulse.so.0
#7  0x00007fb67e21ee28 in ?? () from /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#8  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fb634ff9700 (LWP 1967)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7fb634ff8880, expected=0, futex_word=0x7fb634ff8a68) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb634ff8920, mutex=0x7fb634ff8a18, cond=0x7fb634ff8a40) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb634ff8a40, mutex=0x7fb634ff8a18, abstime=0x7fb634ff8920) at pthread_cond_wait.c:667
#3  0x00007fb6835d07e7 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007fb6835d113a in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007fb68354a8b0 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007fb68356d79b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007fb6835a01c1 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fb6357fa700 (LWP 1966)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x5602cdba0e48) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5602cdba0d88, cond=0x5602cdba0e20) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5602cdba0e20, mutex=0x5602cdba0d88) at pthread_cond_wait.c:655
#3  0x00007fb6835d0719 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007fb683e9e388 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007fb6835a177f in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fb635ffb700 (LWP 1965)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007fb68bf3cced in buffered_vfprintf (s=s@entry=0x7fb68c08f4e0 <_IO_2_1_stderr_>, format=format@entry=0x7fb67fcce188 "[%s] %s\n", args=args@entry=0x7fb635ffa3a0, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:2334
#2  0x00007fb68bf3a138 in __vfprintf_internal (s=0x7fb68c08f4e0 <_IO_2_1_stderr_>, format=0x7fb67fcce188 "[%s] %s\n", ap=ap@entry=0x7fb635ffa3a0, mode_flags=2) at vfprintf-internal.c:1303
#3  0x00007fb68bfdd68e in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#4  0x00007fb67fcb56ff in event_logv_ () from /usr/lib64/libevent-2.1.so.6
#5  0x00007fb67fcb58c4 in event_warn () from /usr/lib64/libevent-2.1.so.6
#6  0x00007fb67fcb7230 in ?? () from /usr/lib64/libevent-2.1.so.6
#7  0x00007fb67fcad068 in event_base_loop () from /usr/lib64/libevent-2.1.so.6
#8  0x00007fb6835d6e4d in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007fb68356d79b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007fb6835a01c1 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#11 0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#12 0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fb6367fc700 (LWP 1964)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7fb6367fb880, expected=0, futex_word=0x7fb6367fba68) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb6367fb920, mutex=0x7fb6367fba18, cond=0x7fb6367fba40) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb6367fba40, mutex=0x7fb6367fba18, abstime=0x7fb6367fb920) at pthread_cond_wait.c:667
#3  0x00007fb6835d07e7 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007fb6835d113a in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007fb68354a8b0 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007fb68356d79b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007fb6835a01c1 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fb636ffd700 (LWP 1963)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fb636ffca88) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fb636ffca38, cond=0x7fb636ffca60) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7fb636ffca60, mutex=0x7fb636ffca38) at pthread_cond_wait.c:655
#3  0x00007fb6835d0719 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007fb6835d1148 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007fb6835d11df in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007fb68358ebe8 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007fb683591516 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007fb683591814 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fb62dffb700 (LWP 1962)):
#0  __GI___libc_write (nbytes=39, buf=0x7fb62dff7dc0, fd=2) at ../sysdeps/unix/sysv/linux/write.c:26
#1  __GI___libc_write (fd=2, buf=0x7fb62dff7dc0, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:24
#2  0x00007fb68bf501cd in _IO_new_file_write (f=0x7fb68c08f4e0 <_IO_2_1_stderr_>, data=0x7fb62dff7dc0, n=39) at fileops.c:1183
#3  0x00007fb68bf4f56f in new_do_write (fp=fp@entry=0x7fb68c08f4e0 <_IO_2_1_stderr_>, data=data@entry=0x7fb62dff7dc0 "[warn] epoll_wait: Bad file descriptor\n", to_do=to_do@entry=39) at libioP.h:903
#4  0x00007fb68bf508fe in _IO_new_file_xsputn (n=39, data=<optimized out>, f=0x7fb68c08f4e0 <_IO_2_1_stderr_>) at fileops.c:1262
#5  _IO_new_file_xsputn (f=0x7fb68c08f4e0 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1204
#6  0x00007fb68bf3cd4a in buffered_vfprintf (s=s@entry=0x7fb68c08f4e0 <_IO_2_1_stderr_>, format=format@entry=0x7fb67fcce188 "[%s] %s\n", args=args@entry=0x7fb62dffa380, mode_flags=mode_flags@entry=2) at ../libio/libioP.h:903
#7  0x00007fb68bf3a138 in __vfprintf_internal (s=0x7fb68c08f4e0 <_IO_2_1_stderr_>, format=0x7fb67fcce188 "[%s] %s\n", ap=ap@entry=0x7fb62dffa380, mode_flags=2) at vfprintf-internal.c:1303
#8  0x00007fb68bfdd68e in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#9  0x00007fb67fcb56ff in event_logv_ () from /usr/lib64/libevent-2.1.so.6
#10 0x00007fb67fcb58c4 in event_warn () from /usr/lib64/libevent-2.1.so.6
#11 0x00007fb67fcb7230 in ?? () from /usr/lib64/libevent-2.1.so.6
#12 0x00007fb67fcad068 in event_base_loop () from /usr/lib64/libevent-2.1.so.6
#13 0x00007fb6835d6df9 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#14 0x00007fb68356d79b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#15 0x00007fb682f23d34 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#16 0x00007fb6835a0318 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#17 0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#18 0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#19 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fb62e7fc700 (LWP 1961)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7fb62e7fb890, expected=0, futex_word=0x7fb62e7fba78) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb62e7fb930, mutex=0x7fb62e7fba28, cond=0x7fb62e7fba50) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb62e7fba50, mutex=0x7fb62e7fba28, abstime=0x7fb62e7fb930) at pthread_cond_wait.c:667
#3  0x00007fb6835d07e7 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007fb6835d113a in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007fb6835d1222 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007fb68358ebd1 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007fb683591516 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007fb6835917d4 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fb637fff700 (LWP 1958)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7fb637ffe890, expected=0, futex_word=0x7fb637ffea78) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fb637ffe930, mutex=0x7fb637ffea28, cond=0x7fb637ffea50) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7fb637ffea50, mutex=0x7fb637ffea28, abstime=0x7fb637ffe930) at pthread_cond_wait.c:667
#3  0x00007fb6835d07e7 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007fb6835d113a in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007fb6835d1222 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007fb68358ebd1 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007fb683591516 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#8  0x00007fb6835917d4 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#9  0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#10 0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fb64c8d7700 (LWP 1957)):
#0  0x00007fb67fcaae23 in event_add_nolock_ () from /usr/lib64/libevent-2.1.so.6
#1  0x00007fb67fcab5ba in event_add () from /usr/lib64/libevent-2.1.so.6
#2  0x00007fb6835d6f26 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#3  0x00007fb68356d79b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007fb6835952c4 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007fb6835a0318 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fb64d8d9700 (LWP 1955)):
#0  0x00007fb68bfce9cf in epoll_wait (epfd=37, events=0x7fb638002010, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007fb67fcb70a9 in ?? () from /usr/lib64/libevent-2.1.so.6
#2  0x00007fb67fcad068 in event_base_loop () from /usr/lib64/libevent-2.1.so.6
#3  0x00007fb6835d6e4d in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#4  0x00007fb68356d79b in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#5  0x00007fb6835a01c1 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#6  0x00007fb6835d3341 in ?? () from /usr/lib64/libQt5WebEngineCore.so.5
#7  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fb66ce31700 (LWP 1918)):
#0  0x00007ffeb4ffc601 in ?? ()
#1  0x00007fb68bfdc396 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7fb66ce308a0) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fb68c4f3791 in qt_clock_gettime (ts=0x7fb66ce308a0, clock=1) at kernel/qelapsedtimer_unix.cpp:175
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007fb68c4f1fd9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fb654004920) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007fb68c4f25d5 in QTimerInfoList::timerWait (this=0x7fb654004920, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007fb68c4f3bee in timerSourcePrepareHelper (timeout=0x7fb66ce30984, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:161
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7fb66ce30984) at kernel/qeventdispatcher_glib.cpp:165
#9  0x00007fb688f26369 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#10 0x00007fb688f26d6b in ?? () from /usr/lib64/libglib-2.0.so.0
#11 0x00007fb688f26f5c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#12 0x00007fb68c4f3e7b in QEventDispatcherGlib::processEvents (this=0x7fb654000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#13 0x00007fb68c49f3cb in QEventLoop::exec (this=this@entry=0x7fb66ce30b60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#14 0x00007fb68c2ea016 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#15 0x00007fb68c2eb362 in QThreadPrivate::start (arg=0x5602cdb82a90) at thread/qthread_unix.cpp:361
#16 0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#17 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fb66dbdf700 (LWP 1905)):
#0  0x00007fb688f71c99 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007fb688f26dfe in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fb688f26f5c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fb68c4f3e7b in QEventDispatcherGlib::processEvents (this=0x7fb650000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb68c49f3cb in QEventLoop::exec (this=this@entry=0x7fb66dbdeb60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fb68c2ea016 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fb68c2eb362 in QThreadPrivate::start (arg=0x5602cd961dd0) at thread/qthread_unix.cpp:361
#7  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fb66e3e0700 (LWP 1904)):
#0  0x00007fb688f267c5 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#1  0x00007fb688f26de0 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fb688f26f5c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fb68c4f3e7b in QEventDispatcherGlib::processEvents (this=0x7fb65c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb68c49f3cb in QEventLoop::exec (this=this@entry=0x7fb66e3dfb60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fb68c2ea016 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fb68c2eb362 in QThreadPrivate::start (arg=0x5602cd90bca0) at thread/qthread_unix.cpp:361
#7  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fb66ebe1700 (LWP 1903)):
#0  0x00007fb688f23d00 in ?? () from /usr/lib64/libglib-2.0.so.0
#1  0x00007fb688f2673f in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fb688f26de0 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fb688f26f5c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fb68c4f3e7b in QEventDispatcherGlib::processEvents (this=0x7fb658000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fb68c49f3cb in QEventLoop::exec (this=this@entry=0x7fb66ebe0b60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fb68c2ea016 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fb68c2eb362 in QThreadPrivate::start (arg=0x5602cd905cc0) at thread/qthread_unix.cpp:361
#8  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fb66fdf2700 (LWP 1902)):
#0  __GI___pthread_getspecific (key=12) at pthread_getspecific.c:30
#1  0x00007fb688f50170 in g_thread_self () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fb688f25e2c in g_main_context_acquire () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fb688f26cf5 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fb688f26f5c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007fb68c4f3e7b in QEventDispatcherGlib::processEvents (this=0x7fb664000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fb68c49f3cb in QEventLoop::exec (this=this@entry=0x7fb66fdf1b30, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007fb68c2ea016 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007fb68baa5565 in ?? () from /usr/lib64/libQt5DBus.so.5
#9  0x00007fb68c2eb362 in QThreadPrivate::start (arg=0x7fb68bb25d80) at thread/qthread_unix.cpp:361
#10 0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fb6705f3700 (LWP 1901)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x5602cd655e68) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5602cd655e18, cond=0x5602cd655e40) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5602cd655e40, mutex=0x5602cd655e18) at pthread_cond_wait.c:655
#3  0x00007fb67905577b in ?? () from /usr/lib64/dri/swrast_dri.so
#4  0x00007fb6790555f7 in ?? () from /usr/lib64/dri/swrast_dri.so
#5  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fb678e70700 (LWP 1900)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x5602cd655d0c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5602cd655cb8, cond=0x5602cd655ce0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5602cd655ce0, mutex=0x5602cd655cb8) at pthread_cond_wait.c:655
#3  0x00007fb67905577b in ?? () from /usr/lib64/dri/swrast_dri.so
#4  0x00007fb6790555f7 in ?? () from /usr/lib64/dri/swrast_dri.so
#5  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fb67a930700 (LWP 1898)):
#0  0x00007fb68bfc3ae9 in __GI___poll (fds=0x7fb67a92fa68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb688d24cc7 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007fb688d268fa in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007fb67aaad788 in QXcbEventQueue::run (this=0x5602cd53ae70) at qxcbeventqueue.cpp:228
#4  0x00007fb68c2eb362 in QThreadPrivate::start (arg=0x5602cd53ae70) at thread/qthread_unix.cpp:361
#5  0x00007fb689973fab in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fb68bfce6af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fb67c8caf40 (LWP 1897)):
[KCrash Handler]
#6  0x00007fb68a6b301a in QHash<QByteArray, Akonadi::Attribute*>::findNode (this=this@entry=0x28, akey=..., ahp=ahp@entry=0x0) at /usr/include/qt5/QtCore/qhash.h:928
#7  0x00007fb68a6f778f in QHash<QByteArray, Akonadi::Attribute*>::contains (akey=..., this=0x28) at /usr/include/qt5/QtCore/qhash.h:906
#8  Akonadi::Item::hasAttribute (this=this@entry=0x7ffeb4fe53b0, type=...) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/item.cpp:253
#9  0x00007fb68a7ea4a0 in Akonadi::EntityTreeModelPrivate::isHiddenImpl<Akonadi::Item> (this=0x5602cd986140, entity=..., type=<optimized out>) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/models/entitytreemodel_p.cpp:281
#10 0x00007fb68a7e76dc in Akonadi::EntityTreeModelPrivate::isHidden (item=..., this=0x5602cd986140) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/models/entitytreemodel_p.cpp:1116
#11 Akonadi::EntityTreeModelPrivate::monitoredItemRemoved (this=this@entry=0x5602cd986140, item=..., parentCollection=...) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/models/entitytreemodel_p.cpp:1116
#12 0x00007fb68a7d6a4a in Akonadi::EntityTreeModel::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=0x7ffeb4fe52d0) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/models/entitytreemodel.h:681
#13 0x00007fb68c4ca206 in QMetaObject::activate (sender=0x5602cd98e160, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3793
#14 0x00007fb68a70a315 in Akonadi::Monitor::itemRemoved (this=<optimized out>, _t1=...) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/build/src/core/KF5AkonadiCore_autogen/include/moc_monitor.cpp:950
#15 0x00007fb68a7171d9 in Akonadi::MonitorPrivate::emitToListeners<void (Akonadi::Monitor::*)(Akonadi::Item const&), Akonadi::Item> (signal=<optimized out>, this=0x5602cd65fbb0) at /usr/include/qt5/QtCore/qhash.h:463
#16 Akonadi::MonitorPrivate::emitItemsNotification (this=0x5602cd65fbb0, msg_=..., items=..., collection=..., collectionDest=...) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/monitor_p.cpp:1073
#17 0x00007fb68a71818a in Akonadi::MonitorPrivate::emitNotification (this=this@entry=0x5602cd65fbb0, msg=...) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/monitor_p.cpp:554
#18 0x00007fb68a6babde in Akonadi::ChangeRecorderPrivate::emitNotification (this=0x5602cd65fbb0, msg=...) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/changerecorder_p.cpp:238
#19 0x00007fb68a71ae9c in Akonadi::MonitorPrivate::dispatchNotifications (this=0x5602cd65fbb0) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/monitor_p.cpp:999
#20 0x00007fb68a70bc89 in Akonadi::Monitor::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/build/src/core/KF5AkonadiCore_autogen/include/moc_monitor.cpp:339
#21 0x00007fb68c4ca206 in QMetaObject::activate (sender=0x5602cd96d660, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3793
#22 0x00007fb68a6b65d3 in Akonadi::EntityCache<Akonadi::Collection, Akonadi::CollectionFetchJob, Akonadi::CollectionFetchScope>::processResult (this=0x5602cd96d660, job=<optimized out>) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/src/core/entitycache_p.h:245
#23 0x00007fb68a6eebd4 in Akonadi::EntityCacheBase::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/akonadi-server-18.12.3-1.2.x86_64/build/src/core/KF5AkonadiCore_autogen/include/moc_entitycache_p.cpp:82
#24 0x00007fb68c4ca206 in QMetaObject::activate (sender=0x5602cec1c4b0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3793
#25 0x00007fb68d3dad9c in KJob::result (this=this@entry=0x5602cec1c4b0, _t1=<optimized out>, _t1@entry=0x5602cec1c4b0, _t2=...) at /usr/src/debug/kcoreaddons-5.56.0-1.1.x86_64/build/src/lib/KF5CoreAddons_autogen/include/moc_kjob.cpp:573
#26 0x00007fb68d3db863 in KJob::finishJob (this=0x5602cec1c4b0, emitResult=<optimized out>) at /usr/src/debug/kcoreaddons-5.56.0-1.1.x86_64/src/lib/jobs/kjob.cpp:109
#27 0x00007fb68c4d5f66 in QtPrivate::QSlotObjectBase::call (a=0x7ffeb4fe5950, r=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#28 QSingleShotTimer::timerEvent (this=0x7fb65c0ccf90) at kernel/qtimer.cpp:318
#29 0x00007fb68c4caa3b in QObject::event (this=0x7fb65c0ccf90, e=<optimized out>) at kernel/qobject.cpp:1241
#30 0x00007fb68ce94551 in QApplicationPrivate::notify_helper (this=this@entry=0x5602cd515ed0, receiver=receiver@entry=0x7fb65c0ccf90, e=e@entry=0x7ffeb4fe5c70) at kernel/qapplication.cpp:3737
#31 0x00007fb68ce9b930 in QApplication::notify (this=0x7ffeb4fe6390, receiver=0x7fb65c0ccf90, e=0x7ffeb4fe5c70) at kernel/qapplication.cpp:3484
#32 0x00007fb68c4a06f9 in QCoreApplication::notifyInternal2 (receiver=0x7fb65c0ccf90, event=0x7ffeb4fe5c70) at ../../include/QtCore/5.12.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:322
#33 0x00007fb68c4f3273 in QTimerInfoList::activateTimers (this=0x5602cd5da5b0) at kernel/qtimerinfo_unix.cpp:643
#34 0x00007fb68c4f3ac4 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#35 0x00007fb688f26c2e in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#36 0x00007fb688f26ec8 in ?? () from /usr/lib64/libglib-2.0.so.0
#37 0x00007fb688f26f5c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#38 0x00007fb68c4f3e63 in QEventDispatcherGlib::processEvents (this=0x5602cd5e20a0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#39 0x00007fb68c49f3cb in QEventLoop::exec (this=this@entry=0x7ffeb4fe5ed0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#40 0x00007fb68c4a7402 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#41 0x00005602cc8a734a in main (argc=<optimized out>, argv=<optimized out>) at /usr/include/qt5/QtCore/qcoreapplication.h:116
[Inferior 1 (process 1897) detached]

The reporter indicates this bug may be a duplicate of or related to bug 404052.

Possible duplicates by query: bug 404052, bug 400145.

Reported using DrKonqi