Application: kmail (5.3.0 (QtWebEngine))

Qt Version: 5.7.0
Frameworks Version: 5.25.0
Operating System: Linux 4.4.0-21-generic x86_64
Distribution: KDE neon User Edition 5.7

-- Information about the crash:
- What I was doing when the application crashed:
Moving a message to another folder in unthreaded view.  KMail crashes with the same backtrace as bug 368766, but I cannot attache in the Crash Reporter :-S

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 0x7f5638090a00 (LWP 4381))]

Thread 40 (Thread 0x7f54c48dd700 (LWP 4954)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653d6f7af in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d6fdc9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d6ff80 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f565d32f6fa in start_thread (arg=0x7f54c48dd700) at pthread_create.c:333
#6  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 39 (Thread 0x7f55901b3700 (LWP 4912)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653d6f7af in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d6fdc9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d6ff80 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f565d32f6fa in start_thread (arg=0x7f55901b3700) at pthread_create.c:333
#6  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 38 (Thread 0x7f54ca467700 (LWP 4910)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5658b86863 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f5658ea7051 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f565d32f6fa in start_thread (arg=0x7f54ca467700) at pthread_create.c:333
#4  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 37 (Thread 0x7f54cac68700 (LWP 4909)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5658b86863 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f5658ea7051 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f565d32f6fa in start_thread (arg=0x7f54cac68700) at pthread_create.c:333
#4  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7f54cb469700 (LWP 4908)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5658b86863 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f5658ea7051 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f565d32f6fa in start_thread (arg=0x7f54cb469700) at pthread_create.c:333
#4  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7f54cbc6a700 (LWP 4907)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5658b85834 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f5658ea7051 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f565d32f6fa in start_thread (arg=0x7f54cbc6a700) at pthread_create.c:333
#4  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7f550c56f700 (LWP 4906)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5658e7742b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f5658e77469 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f565d32f6fa in start_thread (arg=0x7f550c56f700) at pthread_create.c:333
#4  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7f558d69f700 (LWP 4905)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f564f4df5c4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f564f4df609 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f565d32f6fa in start_thread (arg=0x7f558d69f700) at pthread_create.c:333
#4  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7f558e90b700 (LWP 4903)):
#0  0x00007f56668c4e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f565b7ea39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f565d32f6fa in start_thread (arg=0x7f558e90b700) at pthread_create.c:333
#8  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7f5590e89700 (LWP 4896)):
#0  0x00007f565b82eac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f565b7ea2a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f565d32f6fa in start_thread (arg=0x7f5590e89700) at pthread_create.c:333
#8  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f55a0b61700 (LWP 4443)):
#0  0x00007f565b7e9d52 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f565b7ea340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f565d32f6fa in start_thread (arg=0x7f55a0b61700) at pthread_create.c:333
#8  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f55a3df5700 (LWP 4430)):
#0  0x00007fff483b49a4 in ?? ()
#1  0x00007fff483b4cd5 in clock_gettime ()
#2  0x00007f56668defb6 in __GI___clock_gettime (clock_id=1, tp=0x7f55a3df4920) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f566727f251 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5667402f89 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56674034f5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56674048be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f565b7e992d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f565b7ea2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f565d32f6fa in start_thread (arg=0x7f55a3df5700) at pthread_create.c:333
#15 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f55b37fe700 (LWP 4422)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653d6f7af in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d6fdc9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d6ff80 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f565d32f6fa in start_thread (arg=0x7f55b37fe700) at pthread_create.c:333
#6  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f55b3fff700 (LWP 4421)):
#0  0x00007f56668c09cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f56423a8d51 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-8.0.so
#2  0x00007f564a9c962e in pa_mainloop_prepare () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f564a9ca0a0 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f564a9ca160 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f564a9d8149 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f56423d6678 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-8.0.so
#7  0x00007f565d32f6fa in start_thread (arg=0x7f55b3fff700) at pthread_create.c:333
#8  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f55e4ff9700 (LWP 4420)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f56668e02b4 in ___fprintf_chk (fp=0x7f5666b8f770 <_IO_stdfile_2_lock>, flag=1, format=0x7f56479a1bf1 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f56479899af in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#3  0x00007f5647989ba4 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#4  0x00007f564798e258 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#5  0x00007f564797938a in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#6  0x00007f5653d1c31e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f5653d705aa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f565d32f6fa in start_thread (arg=0x7f55e4ff9700) at pthread_create.c:333
#12 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f55e57fa700 (LWP 4419)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f5653d63d92 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d6462d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d45858 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f5653d705aa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f565d32f6fa in start_thread (arg=0x7f55e57fa700) at pthread_create.c:333
#9  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f55e5ffb700 (LWP 4418)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653d6459d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d64675 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d4580d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f5653d705aa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f565d32f6fa in start_thread (arg=0x7f55e5ffb700) at pthread_create.c:333
#9  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f55e67fc700 (LWP 4417)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653925b70 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f565390e4e9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f565390e56b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653909e3a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f5654ba00fe in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f5654ba2534 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f5654ba2585 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f5654ba2669 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f5653d705aa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f565d32f6fa in start_thread (arg=0x7f55e67fc700) at pthread_create.c:333
#14 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f55e6ffd700 (LWP 4416)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653403cfd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d6fe5e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d6ff80 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f565d32f6fa in start_thread (arg=0x7f55e6ffd700) at pthread_create.c:333
#6  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f55e77fe700 (LWP 4415)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653d6459d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d64675 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d4580d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f5653d705aa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f565d32f6fa in start_thread (arg=0x7f55e77fe700) at pthread_create.c:333
#9  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f55e7fff700 (LWP 4414)):
#0  0x00007f56668c0a2d in write () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f5666842b2f in _IO_new_file_write (f=0x7f5666b8e540 <_IO_2_1_stderr_>, data=0x7f55e7ffba80, n=39) at fileops.c:1263
#2  0x00007f56668432ba in new_do_write (to_do=39, data=0x7f55e7ffba80 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7f5666b8e540 <_IO_2_1_stderr_>) at fileops.c:518
#3  _IO_new_file_xsputn (f=0x7f5666b8e540 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1342
#4  0x00007f5666819f54 in buffered_vfprintf (s=0x7f5666b8e540 <_IO_2_1_stderr_>, format=<optimized out>, args=<optimized out>) at vfprintf.c:2341
#5  0x00007f56668172ed in _IO_vfprintf_internal (s=s@entry=0x7f5666b8e540 <_IO_2_1_stderr_>, format=0x7f56479a1bf1 "[%s] %s\n", ap=ap@entry=0x7f55e7ffe038) at vfprintf.c:1293
#6  0x00007f56668e0309 in ___fprintf_chk (fp=0x7f5666b8e540 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007f56479899af in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#8  0x00007f5647989ba4 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#9  0x00007f564798e258 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#10 0x00007f564797938a in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#11 0x00007f5653d1c31e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f565301bdb8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f565301befb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007f5653d70628 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#17 0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#18 0x00007f565d32f6fa in start_thread (arg=0x7f55e7fff700) at pthread_create.c:333
#19 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f55f4ff9700 (LWP 4413)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f56668e02b4 in ___fprintf_chk (fp=0x7f5666b8f770 <_IO_stdfile_2_lock>, flag=1, format=0x7f56479a1bf1 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f56479899af in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#3  0x00007f5647989ba4 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#4  0x00007f564798e258 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#5  0x00007f564797938a in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#6  0x00007f5653d1c3b9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f565301bd08 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f565301bf5b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f5653d70628 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f565d32f6fa in start_thread (arg=0x7f55f4ff9700) at pthread_create.c:333
#14 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f55f57fa700 (LWP 4412)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653d6459d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d64675 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d4580d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f565301bc58 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f565301bf4b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f5653d70628 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f565d32f6fa in start_thread (arg=0x7f55f57fa700) at pthread_create.c:333
#11 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f55f5ffb700 (LWP 4411)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653d6459d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d64675 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d4580d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f565301bba8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f565301bf3b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f5653d70628 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f565d32f6fa in start_thread (arg=0x7f55f5ffb700) at pthread_create.c:333
#11 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f55f67fc700 (LWP 4410)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f5653d63d92 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d731f8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d7372d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f565d32f6fa in start_thread (arg=0x7f55f67fc700) at pthread_create.c:333
#6  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f55f6ffd700 (LWP 4409)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f56668e02b4 in ___fprintf_chk (fp=0x7f5666b8f770 <_IO_stdfile_2_lock>, flag=1, format=0x7f56479a1bf1 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f56479899af in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#3  0x00007f5647989ba4 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#4  0x00007f564798e258 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#5  0x00007f564797938a in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#6  0x00007f5653d1c3b9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f565301baf8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f565301bf2b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f5653d70628 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f565d32f6fa in start_thread (arg=0x7f55f6ffd700) at pthread_create.c:333
#14 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f55f77fe700 (LWP 4408)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653d6459d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d64675 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d4580d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f565301ba48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f565301bf1b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f5653d70628 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f565d32f6fa in start_thread (arg=0x7f55f77fe700) at pthread_create.c:333
#11 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f55f7fff700 (LWP 4407)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f5653d63d92 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d731f8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d7372d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f565d32f6fa in start_thread (arg=0x7f55f7fff700) at pthread_create.c:333
#6  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f560cbd6700 (LWP 4406)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5653d6459d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d64675 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f5653d4580d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f5653d705aa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f565d32f6fa in start_thread (arg=0x7f560cbd6700) at pthread_create.c:333
#9  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f560d3d7700 (LWP 4405)):
#0  __lll_unlock_wake_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:341
#1  0x00007f56668e0368 in _IO_acquire_lock_clear_flags2_fct (p=<synthetic pointer>) at ../libio/libioP.h:877
#2  ___fprintf_chk (fp=0x7f5666b8e540 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:30
#3  0x00007f56479899af in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#4  0x00007f5647989ba4 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#5  0x00007f564798e258 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#6  0x00007f564797938a in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
#7  0x00007f5653d1c31e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f5653d57c32 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f5653d418f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f5653d705aa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f565d32f6fa in start_thread (arg=0x7f560d3d7700) at pthread_create.c:333
#13 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f560dbd8700 (LWP 4404)):
#0  0x00007f566689569b in __GI___waitpid (pid=4401, stat_loc=0x0, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:29
#1  0x00007f5653d53486 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f5653d6c947 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f565d32f6fa in start_thread (arg=0x7f560dbd8700) at pthread_create.c:333
#4  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f560eeaa700 (LWP 4397)):
#0  0x00007f56671d1099 in QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f5667404bd9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f565b7e9dd1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f565b7ea340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f565d32f6fa in start_thread (arg=0x7f560eeaa700) at pthread_create.c:333
#10 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f560f6ab700 (LWP 4395)):
#0  0x00007f56668c4e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f565b7ea39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f565d32f6fa in start_thread (arg=0x7f560f6ab700) at pthread_create.c:333
#8  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f561effd700 (LWP 4391)):
#0  0x00007f56671d1459 in QMutex::unlock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f5667404a71 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f565b7e992d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f565b7ea2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f565d32f6fa in start_thread (arg=0x7f561effd700) at pthread_create.c:333
#10 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f561f7fe700 (LWP 4389)):
#0  0x00007f56668c4e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f565b7ea39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f565d32f6fa in start_thread (arg=0x7f561f7fe700) at pthread_create.c:333
#8  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f561ffff700 (LWP 4387)):
#0  0x00007fff483b49a9 in ?? ()
#1  0x00007fff483b4cd5 in clock_gettime ()
#2  0x00007f56668defb6 in __GI___clock_gettime (clock_id=1, tp=0x7f561fffe920) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f566727f251 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5667402f89 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56674034f5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56674048be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f565b7e992d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f565b7ea2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f565d32f6fa in start_thread (arg=0x7f561ffff700) at pthread_create.c:333
#15 0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f562ce7c700 (LWP 4385)):
#0  0x00007f56668c4e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f565b7ea39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f565d32f6fa in start_thread (arg=0x7f562ce7c700) at pthread_create.c:333
#8  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f562d6f7700 (LWP 4384)):
#0  0x00007f565b82eac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f565b7e9ddc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f565b7ea340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f565d32f6fa in start_thread (arg=0x7f562d6f7700) at pthread_create.c:333
#9  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f562e908700 (LWP 4383)):
#0  0x00007f565b7e9cb6 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f565b7ea340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f566740530b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f56671d5044 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f56694857a5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f56671d9c28 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f565d32f6fa in start_thread (arg=0x7f562e908700) at pthread_create.c:333
#9  0x00007f56668d0b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f5638090a00 (LWP 4381)):
[KCrash Handler]
#6  std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=<error reading variable: Cannot access memory at address 0xb8>) at /usr/include/c++/5/bits/atomic_base.h:396
#7  QAtomicOps<int>::load<int> (_q_value=<error reading variable: Cannot access memory at address 0xb8>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qatomic_cxx11.h:103
#8  QBasicAtomicInteger<int>::load (this=<error reading variable: Cannot access memory at address 0xb8>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qbasicatomic.h:99
#9  QtPrivate::RefCount::ref (this=<error reading variable: Cannot access memory at address 0xb8>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:55
#10 QVector<QSharedPointer<MimeTreeParser::Interface::MessagePart> >::QVector (v=..., this=<synthetic pointer>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvector.h:363
#11 QForeachContainer<QVector<QSharedPointer<MimeTreeParser::Interface::MessagePart> > const>::QForeachContainer (t=..., this=<synthetic pointer>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:944
#12 MimeTreeParser::toplevelTextNode (messageTree=...) at /workspace/build/mimetreeparser/src/bodyformatter/utils.cpp:55
#13 0x00007f566369427a in MimeTreeParser::toplevelTextNode (messageTree=...) at /workspace/build/mimetreeparser/src/bodyformatter/utils.cpp:64
#14 0x00007f56636a8d04 in MimeTreeParser::ObjectTreeParser::parseObjectTree (this=this@entry=0x7fff482009f0, node=node@entry=0x57538f0) at /workspace/build/mimetreeparser/src/viewer/objecttreeparser.cpp:185
#15 0x00007f5663fe7d27 in MessageViewer::ViewerPrivate::parseContent (this=this@entry=0x2220f50, content=0x57538f0) at /workspace/build/messageviewer/src/viewer/viewer_p.cpp:969
#16 0x00007f5663fe831d in MessageViewer::ViewerPrivate::displayMessage (this=this@entry=0x2220f50) at /workspace/build/messageviewer/src/viewer/viewer_p.cpp:842
#17 0x00007f5663fe8d8a in MessageViewer::ViewerPrivate::updateReaderWin (this=0x2220f50) at /workspace/build/messageviewer/src/viewer/viewer_p.cpp:2133
#18 0x00007f56673dcf36 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f56673e94e8 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f56673dda93 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f5667c9d89c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f5667ca5296 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f56673b1da8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f566740423e in QTimerInfoList::activateTimers() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f5667404771 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f565b7ea1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f565b7ea400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f565b7ea4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f56674052ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f56673afd9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f56673b83ac in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x0000000000403984 in ?? ()
#33 0x00007f56667ea830 in __libc_start_main (main=0x4028d0, argc=1, argv=0x7fff48201b48, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff48201b38) at ../csu/libc-start.c:291
#34 0x0000000000404079 in _start ()

Reported using DrKonqi