Bug 412465

Summary: KMail crashes when Network connection is spotty
Product: [Applications] kmail2 Reporter: Jens Pruessner <jens.pruessner>
Component: generalAssignee: kdepim bugs <kdepim-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: jjm
Priority: NOR Keywords: drkonqi
Version: 5.7.3   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Jens Pruessner 2019-09-30 08:25:00 UTC 
Application: kmail (5.7.3)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-64-generic x86_64
Distribution: Ubuntu 18.04.3 LTS

-- Information about the crash:
- I am running Kubuntu  18.04 with Plasma 5.12.9 and the latest version of KMail. Whenever my network connection is coming back online after an interruption, KMail crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc575b44b80 (LWP 15100))]

Thread 31 (Thread 0x7fc3ddbdf700 (LWP 28491)):
#0  0x00007fc568515ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fc3ddbde7e0, expected=0, futex_word=0x7fc4fc0047d4) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc568515ed9 in __pthread_cond_wait_common (abstime=0x7fc3ddbde880, mutex=0x7fc4fc004780, cond=0x7fc4fc0047a8) at pthread_cond_wait.c:533
#2  0x00007fc568515ed9 in __pthread_cond_timedwait (cond=0x7fc4fc0047a8, mutex=0x7fc4fc004780, abstime=0x7fc3ddbde880) at pthread_cond_wait.c:667
#3  0x00007fc55d3e4652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ba799 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3bacfb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc56850f6db in start_thread (arg=0x7fc3ddbdf700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fc3eed4a700 (LWP 28288)):
#0  0x00007fc568515ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fc3eed497e0, expected=0, futex_word=0x7fc4fc0047d4) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc568515ed9 in __pthread_cond_wait_common (abstime=0x7fc3eed49880, mutex=0x7fc4fc004780, cond=0x7fc4fc0047a8) at pthread_cond_wait.c:533
#2  0x00007fc568515ed9 in __pthread_cond_timedwait (cond=0x7fc4fc0047a8, mutex=0x7fc4fc004780, abstime=0x7fc3eed49880) at pthread_cond_wait.c:667
#3  0x00007fc55d3e4652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ba799 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3bacfb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc56850f6db in start_thread (arg=0x7fc3eed4a700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fc411301700 (LWP 15461)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5640878feb8c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5640878feb38, cond=0x5640878feb60) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x5640878feb60, mutex=0x5640878feb38) at pthread_cond_wait.c:655
#3  0x00007fc55d3b5c95 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3b6177 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3b6f11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc56850f6db in start_thread (arg=0x7fc411301700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fc41250f700 (LWP 15235)):
#0  0x00007fc572c0e0b4 in __GI___libc_read (fd=89, buf=0x7fc41250e810, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fc5668fe2d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc5668b90b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc5668b9570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc5668b96dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc57355b99b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc5735009fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc57331f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc57332417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc56850f6db in start_thread (arg=0x7fc41250f700) at pthread_create.c:463
#10 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fc49889f700 (LWP 15188)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5640878feb88) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5640878feb38, cond=0x5640878feb60) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x5640878feb60, mutex=0x5640878feb38) at pthread_cond_wait.c:655
#3  0x00007fc55d3b5c95 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3b6177 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3b6f11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc56850f6db in start_thread (arg=0x7fc49889f700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fc499efa700 (LWP 15186)):
#0  0x00007fc572c12bf9 in __GI___poll (fds=0x7fc494001cb0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc5668b95c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc5668b96dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc57355b99b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc5735009fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc57331f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc57332417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc56850f6db in start_thread (arg=0x7fc499efa700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fc49bd16700 (LWP 15185)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc559c7efb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc559c7ef68, cond=0x7fc559c7ef90) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x7fc559c7ef90, mutex=0x7fc559c7ef68) at pthread_cond_wait.c:655
#3  0x00007fc5599885f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007fc559988639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007fc56850f6db in start_thread (arg=0x7fc49bd16700) at pthread_create.c:463
#6  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fc4cdffb700 (LWP 15151)):
#0  0x00007fc572c0e0b4 in __GI___libc_read (fd=61, buf=0x7fc4cdffa85e, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fc54d93a021 in pa_read () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#2  0x00007fc55632aa2e in pa_mainloop_prepare () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fc55632b4a0 in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fc55632b560 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fc5563393c9 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fc54d969318 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007fc56850f6db in start_thread (arg=0x7fc4cdffb700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fc4ce7fc700 (LWP 15150)):
#0  0x00007fc572c0e187 in __GI___libc_write (fd=2, buf=0x7fc4ce7f8ac0, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007fc572b891bd in _IO_new_file_write (f=0x7fc572eea680 <_IO_2_1_stderr_>, data=0x7fc4ce7f8ac0, n=39) at fileops.c:1203
#2  0x00007fc572b89b2f in new_do_write (to_do=<optimized out>, data=0x7fc4ce7f8ac0 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7fc572eea680 <_IO_2_1_stderr_>) at fileops.c:457
#3  0x00007fc572b89b2f in _IO_new_file_xsputn (f=0x7fc572eea680 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1277
#4  0x00007fc572b5c707 in buffered_vfprintf (s=s@entry=0x7fc572eea680 <_IO_2_1_stderr_>, format=format@entry=0x7fc5543b96a8 "[%s] %s\n", args=args@entry=0x7fc4ce7fb080) at vfprintf.c:2350
#5  0x00007fc572b59726 in _IO_vfprintf_internal (s=s@entry=0x7fc572eea680 <_IO_2_1_stderr_>, format=0x7fc5543b96a8 "[%s] %s\n", ap=ap@entry=0x7fc4ce7fb080) at vfprintf.c:1301
#6  0x00007fc572c304c6 in ___fprintf_chk (fp=0x7fc572eea680 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007fc5543a19ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007fc5543a1b44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007fc5543a346c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007fc554399114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007fc55d386b0d in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007fc55d3b74d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007fc56850f6db in start_thread (arg=0x7fc4ce7fc700) at pthread_create.c:463
#17 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fc4ceffd700 (LWP 15149)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc4ceffc738) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc4ceffc6e8, cond=0x7fc4ceffc710) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x7fc4ceffc710, mutex=0x7fc4ceffc6e8) at pthread_cond_wait.c:655
#3  0x00007fc55d3ab999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ab9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3864db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55d3b74d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc56850f6db in start_thread (arg=0x7fc4ceffd700) at pthread_create.c:463
#11 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fc4cf7fe700 (LWP 15148)):
#0  0x00007fc568515ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fc4cf7fd5d0, expected=0, futex_word=0x7fc4cf7fd758) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc568515ed9 in __pthread_cond_wait_common (abstime=0x7fc4cf7fd670, mutex=0x7fc4cf7fd708, cond=0x7fc4cf7fd730) at pthread_cond_wait.c:533
#2  0x00007fc568515ed9 in __pthread_cond_timedwait (cond=0x7fc4cf7fd730, mutex=0x7fc4cf7fd708, abstime=0x7fc4cf7fd670) at pthread_cond_wait.c:667
#3  0x00007fc55d3e4652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ab91e in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d38652b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55d3b74d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc56850f6db in start_thread (arg=0x7fc4cf7fe700) at pthread_create.c:463
#11 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fc4cffff700 (LWP 15147)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56408790b908) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x56408790b848, cond=0x56408790b8e0) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x56408790b8e0, mutex=0x56408790b848) at pthread_cond_wait.c:655
#3  0x00007fc55db3d060 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3b6f11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc56850f6db in start_thread (arg=0x7fc4cffff700) at pthread_create.c:463
#7  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fc4e4ff9700 (LWP 15146)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5640878feb8c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5640878feb38, cond=0x5640878feb60) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x5640878feb60, mutex=0x5640878feb38) at pthread_cond_wait.c:655
#3  0x00007fc55d3b5c95 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3b6177 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3b6f11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc56850f6db in start_thread (arg=0x7fc4e4ff9700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fc4e57fa700 (LWP 15145)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc4e57f9738) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc4e57f96e8, cond=0x7fc4e57f9710) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x7fc4e57f9710, mutex=0x7fc4e57f96e8) at pthread_cond_wait.c:655
#3  0x00007fc55d3ab999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ab9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3864db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55d3b74d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc56850f6db in start_thread (arg=0x7fc4e57fa700) at pthread_create.c:463
#11 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fc4e5ffb700 (LWP 15144)):
#0  0x00007fc572c2e6ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc572c30474 in ___fprintf_chk (fp=0x7fc572eeb8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fc5543b96a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fc5543a19ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc5543a1b44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc5543a346c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc554399114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc55d386ab9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55cc3d978 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc55cc3df2b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fc55d3b7588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fc56850f6db in start_thread (arg=0x7fc4e5ffb700) at pthread_create.c:463
#14 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fc4e67fc700 (LWP 15143)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc4e67fb358) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc4e67fb308, cond=0x7fc4e67fb330) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x7fc4e67fb330, mutex=0x7fc4e67fb308) at pthread_cond_wait.c:655
#3  0x00007fc55d3ab999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ab9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3864db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55cc3d8c8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55cc3df1b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc55d3b7588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc56850f6db in start_thread (arg=0x7fc4e67fc700) at pthread_create.c:463
#13 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fc4e6ffd700 (LWP 15142)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc4e6ffc358) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc4e6ffc308, cond=0x7fc4e6ffc330) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x7fc4e6ffc330, mutex=0x7fc4e6ffc308) at pthread_cond_wait.c:655
#3  0x00007fc55d3ab999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ab9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3864db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55cc3d818 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55cc3df0b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc55d3b7588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc56850f6db in start_thread (arg=0x7fc4e6ffd700) at pthread_create.c:463
#13 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fc4e77fe700 (LWP 15141)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc4e77fd358) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc4e77fd308, cond=0x7fc4e77fd330) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x7fc4e77fd330, mutex=0x7fc4e77fd308) at pthread_cond_wait.c:655
#3  0x00007fc55d3ab999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ab9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3864db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55cc3d768 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55cc3defb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc55d3b7588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc56850f6db in start_thread (arg=0x7fc4e77fe700) at pthread_create.c:463
#13 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fc4e7fff700 (LWP 15140)):
#0  0x00007fc572c2e6ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc572c30474 in ___fprintf_chk (fp=0x7fc572eeb8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fc5543b96a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fc5543a19ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc5543a1b44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc5543a346c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc554399114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc55d386b0d in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55cc3d6b8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc55cc3deeb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fc55d3b7588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fc56850f6db in start_thread (arg=0x7fc4e7fff700) at pthread_create.c:463
#14 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fc504939700 (LWP 15139)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc504938358) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc504938308, cond=0x7fc504938330) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x7fc504938330, mutex=0x7fc504938308) at pthread_cond_wait.c:655
#3  0x00007fc55d3ab999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ab9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3864db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55cc3d608 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55cc3dedb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc55d3b7588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc56850f6db in start_thread (arg=0x7fc504939700) at pthread_create.c:463
#13 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fc506349700 (LWP 15136)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fc506348738) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fc5063486e8, cond=0x7fc506348710) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x7fc506348710, mutex=0x7fc5063486e8) at pthread_cond_wait.c:655
#3  0x00007fc55d3ab999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc55d3ab9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc55d3864db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55d3b74d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc56850f6db in start_thread (arg=0x7fc506349700) at pthread_create.c:463
#11 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fc506b4a700 (LWP 15135)):
#0  0x00007fc572c2e6ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc572c30474 in ___fprintf_chk (fp=0x7fc572eeb8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7fc5543b96a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007fc5543a19ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc5543a1b44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc5543a346c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc554399114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc55d386ab9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc55d382da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc55d39f77b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc55d3b74d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc55d3b35eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fc56850f6db in start_thread (arg=0x7fc506b4a700) at pthread_create.c:463
#12 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fc50f0ae700 (LWP 15126)):
#0  0x00007fc572c12c08 in __GI___poll (fds=0x7fc508003cc0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc5668b95c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc5668b96dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc57355b99b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc5735009fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc57331f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc57332417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc56850f6db in start_thread (arg=0x7fc50f0ae700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fc51d4fc700 (LWP 15111)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564086def960) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x564086def910, cond=0x564086def938) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x564086def938, mutex=0x564086def910) at pthread_cond_wait.c:655
#3  0x00007fc5733255ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc57331dc1b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc51e4ea80c in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/texttospeech/libqttexttospeech_flite.so
#6  0x00007fc57332417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc56850f6db in start_thread (arg=0x7fc51d4fc700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fc52ce8a700 (LWP 15106)):
#0  0x00007fc572c12bf9 in __GI___poll (fds=0x7fc518071dd0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc5668b95c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc5668b96dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc57355b99b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc5735009fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc57331f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc57332417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc56850f6db in start_thread (arg=0x7fc52ce8a700) at pthread_create.c:463
#8  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fc52d68b700 (LWP 15105)):
#0  0x00007fc572c0e0b4 in __GI___libc_read (fd=12, buf=0x7fc52d68a810, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fc5668fe2d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc5668b90b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc5668b9570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc5668b96dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc57355b99b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc5735009fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc57331f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc57332417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc56850f6db in start_thread (arg=0x7fc52d68b700) at pthread_create.c:463
#10 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fc52e52a700 (LWP 15104)):
#0  0x00007fc572c0e0b4 in __GI___libc_read (fd=10, buf=0x7fc52e529810, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fc5668fe2d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc5668b90b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc5668b9570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc5668b96dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc57355b99b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc5735009fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc57331f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc57332417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc56850f6db in start_thread (arg=0x7fc52e52a700) at pthread_create.c:463
#10 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fc534916700 (LWP 15103)):
#0  0x00007fc5668ff664 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc5668b8ac0 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc5668b94fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc5668b96dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc57355b99b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc5735009fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc57331f23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc571b58d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fc57332417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc56850f6db in start_thread (arg=0x7fc534916700) at pthread_create.c:463
#10 0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fc53589a700 (LWP 15102)):
#0  0x00007fc5685159f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x564086081718) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc5685159f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5640860816c8, cond=0x5640860816f0) at pthread_cond_wait.c:502
#2  0x00007fc5685159f3 in __pthread_cond_wait (cond=0x5640860816f0, mutex=0x5640860816c8) at pthread_cond_wait.c:655
#3  0x00007fc53695323b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fc536952f67 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fc56850f6db in start_thread (arg=0x7fc53589a700) at pthread_create.c:463
#6  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fc53de0b700 (LWP 15101)):
#0  0x00007fc572c12bf9 in __GI___poll (fds=0x7fc53de0a928, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc565ce7747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc565ce936a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc53fb065e9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fc57332417d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc56850f6db in start_thread (arg=0x7fc53de0b700) at pthread_create.c:463
#6  0x00007fc572c1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fc575b44b80 (LWP 15100)):
[KCrash Handler]
#6  0x00007fc5743d58c0 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007fc5743d1508 in QMainWindow::statusBar() const () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007fc5753b34b9 in KMMainWin::displayStatusMessage(QString const&) () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#9  0x00007fc57353175f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fc569dfdf32 in KPIM::BroadcastStatus::statusMsg(QString const&) () at /usr/lib/x86_64-linux-gnu/libKF5Libkdepim.so.5abi2
#11 0x00007fc5753e69d4 in KMMainWidget::showMessageActivities(QString const&) () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#12 0x00007fc5753ea5f1 in KMMainWidget::itemsFetchDone(KJob*) () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#13 0x00007fc57353175f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fc5749acfdc in KJob::result(KJob*, KJob::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#15 0x00007fc5749adb11 in KJob::finishJob(bool) () at /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#16 0x00007fc5749adb72 in KJob::kill(KJob::KillVerbosity) () at /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#17 0x00007fc56cbe3021 in Akonadi::Session::clear() () at /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi1
#18 0x00007fc56cbe30d7 in Akonadi::Session::~Session() () at /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi1
#19 0x00007fc56cbe30f9 in Akonadi::Session::~Session() () at /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi1
#20 0x00007fc57352f22b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fc573538a5b in QObject::~QObject() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fc56f9a1019 in  () at /usr/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5abi4
#23 0x00007fc57352f22b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fc5742bad5c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fc56f992879 in MessageViewer::Viewer::~Viewer() () at /usr/lib/x86_64-linux-gnu/libKF5MessageViewer.so.5abi4
#26 0x00007fc57352f22b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fc5742bad5c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007fc5753b7df9 in KMReaderWin::~KMReaderWin() () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#29 0x00007fc57352f22b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007fc5742bad5c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007fc574429679 in QSplitter::~QSplitter() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007fc57352f22b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007fc5742bad5c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007fc574429679 in QSplitter::~QSplitter() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007fc5753e91f3 in KMMainWidget::deleteWidgets() () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#36 0x00007fc575402d41 in KMMainWidget::destruct() () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#37 0x00007fc575402f1f in KMMainWidget::~KMMainWidget() () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#38 0x00007fc5754030f9 in KMMainWidget::~KMMainWidget() () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#39 0x00007fc57352f22b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007fc5742bad5c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007fc57261073d in KMainWindow::~KMainWindow() () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#42 0x00007fc5753b4d6a in KMMainWin::~KMMainWin() () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#43 0x00007fc5753b4dd9 in KMMainWin::~KMMainWin() () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#44 0x00007fc5735321d0 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007fc5742bf75b in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#46 0x00007fc5743d2c6b in QMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#47 0x00007fc572612b87 in KMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#48 0x00007fc5726579e5 in KXmlGuiWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#49 0x00007fc57428083c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007fc574288104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007fc5735029c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x00007fc57350513d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#53 0x00007fc57355c353 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#54 0x00007fc5668b9417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#55 0x00007fc5668b9650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#56 0x00007fc5668b96dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007fc57355b97f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#58 0x00007fc5735009fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#59 0x00007fc573509aa4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#60 0x0000564085be77cd in  ()
#61 0x00007fc572b1fb97 in __libc_start_main (main=0x564085be6840, argc=1, argv=0x7ffc25f44ba8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc25f44b98) at ../csu/libc-start.c:310
#62 0x0000564085be78fa in _start ()

Reported using DrKonqi
Comment 1 Jonathan Marten 2019-09-30 08:38:39 UTC 
Backtrace looks suspicously like bug #387177.  Fixed in KMail 5.8, please upgrade if possible.
Comment 2 Jonathan Marten 2019-09-30 17:02:14 UTC 
Please test with a recent KMail version.
Comment 3 Jens Pruessner 2019-10-06 06:47:16 UTC 
Does appear fixed in recent KMail version - so far no more crashes after upgrading KMail.
Comment 4 Jonathan Marten 2019-10-06 06:58:30 UTC 

*** This bug has been marked as a duplicate of bug 387177 ***