Bug 369056

Summary: KMail crashes repeatedly while entering recipient [Xapian::Document::Internal::get_data[abi:cxx11]]
Product: [Applications] kmail2 Reporter: Mirko Stocker <me>
Component: generalAssignee: kdepim bugs <kdepim-bugs>
Status: RESOLVED FIXED    
Severity: crash CC: bruno, dyle71, fredrick.o.jackson, kdenis, kfunk
Priority: NOR Keywords: drkonqi
Version: 5.3.0   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: https://commits.kde.org/akonadi-search/d43b22a5132bb41981fa1594da0f97455f370383 Version Fixed In: 17.12.2
Sentry Crash Report:

Description Mirko Stocker 2016-09-19 15:13:20 UTC 
Application: kmail (5.3.0 (QtWebEngine))

Qt Version: 5.7.0
Frameworks Version: 5.26.0
Operating System: Linux 4.7.3-2-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:

While entering the address in an email "To" field, KMail repeatedly crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdc3a883f40 (LWP 15680))]

Thread 37 (Thread 0x7fdadd032700 (LWP 15757)):
#0  0x00007fdc2d41d4b8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc3804fb66 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007fdc3804b274 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 36 (Thread 0x7fdb5eedc700 (LWP 15754)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc1d0c9ac4 in ?? () from /usr/lib/libQt5Script.so.5
#2  0x00007fdc1d0c9b09 in ?? () from /usr/lib/libQt5Script.so.5
#3  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 35 (Thread 0x7fdb5f6dd700 (LWP 15752)):
#0  0x00007fdc3774448d in poll () from /usr/lib/libc.so.6
#1  0x00007fdc2b899066 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 34 (Thread 0x7fdb5fede700 (LWP 15749)):
#0  0x00007ffc6e30eaec in clock_gettime ()
#1  0x00007fdc3775a6b6 in clock_gettime () from /usr/lib/libc.so.6
#2  0x00007fdc380f4191 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007fdc3827b239 in QTimerInfoList::updateCurrentTime() () from /usr/lib/libQt5Core.so.5
#4  0x00007fdc3827b7e5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc3827cb6e in ?? () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc2b8985b9 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#7  0x00007fdc2b898f8b in ?? () from /usr/lib/libglib-2.0.so.0
#8  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#9  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#10 0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#11 0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#12 0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#13 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 33 (Thread 0x7fdb63fff700 (LWP 15744)):
#0  0x00007fdc2d41d4b8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc3804fb66 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007fdc3804b274 in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#4  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 32 (Thread 0x7fdb6cde8700 (LWP 15742)):
#0  0x00007fdc377404ed in read () from /usr/lib/libc.so.6
#1  0x00007fdc2b8dbbc0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b898b36 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b899004 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 31 (Thread 0x7fdb6ea6a700 (LWP 15740)):
#0  0x00007fdc2b896073 in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007fdc2b8989b4 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b899004 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 30 (Thread 0x7fdb7594a700 (LWP 15732)):
#0  0x00007fdc377404ed in read () from /usr/lib/libc.so.6
#1  0x00007fdc2b8dbbc0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b898b36 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b899004 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 29 (Thread 0x7fdb77ffe700 (LWP 15727)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc23074649 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23074c49 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc23074e00 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 28 (Thread 0x7fdbb0ff9700 (LWP 15726)):
#0  0x00007fdc37759fdb in __lll_lock_wait_private () from /usr/lib/libc.so.6
#1  0x00007fdc3775ba94 in __fprintf_chk () from /usr/lib/libc.so.6
#2  0x00007fdc13fe79ee in ?? () from /usr/lib/libevent-2.0.so.5
#3  0x00007fdc13fe7be4 in event_warn () from /usr/lib/libevent-2.0.so.5
#4  0x00007fdc13fec2f8 in ?? () from /usr/lib/libevent-2.0.so.5
#5  0x00007fdc13fd636d in event_base_loop () from /usr/lib/libevent-2.0.so.5
#6  0x00007fdc2301ff7a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007fdc2307542a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#11 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 27 (Thread 0x7fdbb17fa700 (LWP 15725)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc230692b5 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23069385 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc2304a383 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fdc2307542a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 26 (Thread 0x7fdbb1ffb700 (LWP 15724)):
#0  0x00007fdc3774448d in poll () from /usr/lib/libc.so.6
#1  0x00007fdc17b01121 in ?? () from /usr/lib/libpulse.so.0
#2  0x00007fdc17af28f1 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#3  0x00007fdc17af2f8e in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#4  0x00007fdc17af3040 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#5  0x00007fdc17b01069 in ?? () from /usr/lib/libpulse.so.0
#6  0x00007fdc10ffeed8 in ?? () from /usr/lib/pulseaudio/libpulsecommon-9.0.so
#7  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 25 (Thread 0x7fdbb27fc700 (LWP 15723)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc22b1be80 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc22b03bd0 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc22b03f6b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc22aff7fa in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc23fa059e in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fdc23fa2a34 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc23fa2a85 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc23fa2b69 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#11 0x00007fdc2307542a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#12 0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#13 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 24 (Thread 0x7fdbb2ffd700 (LWP 15722)):
#0  0x00007fdc2d41d4b8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc23068a92 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23069345 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc2304a3d1 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fdc2307542a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 23 (Thread 0x7fdbb37fe700 (LWP 15721)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc225fb26d in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23074cde in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc23074e00 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 22 (Thread 0x7fdbb3fff700 (LWP 15720)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc230692b5 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23069385 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc2304a383 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fdc2307542a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 21 (Thread 0x7fdbc0ff9700 (LWP 15719)):
#0  0x00007fdc37759fdb in __lll_lock_wait_private () from /usr/lib/libc.so.6
#1  0x00007fdc3775ba94 in __fprintf_chk () from /usr/lib/libc.so.6
#2  0x00007fdc13fe79ee in ?? () from /usr/lib/libevent-2.0.so.5
#3  0x00007fdc13fe7be4 in event_warn () from /usr/lib/libevent-2.0.so.5
#4  0x00007fdc13fec2f8 in ?? () from /usr/lib/libevent-2.0.so.5
#5  0x00007fdc13fd636d in event_base_loop () from /usr/lib/libevent-2.0.so.5
#6  0x00007fdc23020035 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007fdc222024a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007fdc222025eb in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#11 0x00007fdc230754a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#12 0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#13 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 20 (Thread 0x7fdbc17fa700 (LWP 15718)):
#0  0x00007fdc37759fdb in __lll_lock_wait_private () from /usr/lib/libc.so.6
#1  0x00007fdc3775ba94 in __fprintf_chk () from /usr/lib/libc.so.6
#2  0x00007fdc13fe79ee in ?? () from /usr/lib/libevent-2.0.so.5
#3  0x00007fdc13fe7be4 in event_warn () from /usr/lib/libevent-2.0.so.5
#4  0x00007fdc13fec2f8 in ?? () from /usr/lib/libevent-2.0.so.5
#5  0x00007fdc13fd636d in event_base_loop () from /usr/lib/libevent-2.0.so.5
#6  0x00007fdc2301ff7a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007fdc222023f8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007fdc2220264b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#11 0x00007fdc230754a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#12 0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#13 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 19 (Thread 0x7fdbc1ffb700 (LWP 15717)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc230692b5 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23069385 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc2304a383 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fdc22202348 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2220263b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc230754a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 18 (Thread 0x7fdbc27fc700 (LWP 15716)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc230692b5 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23069385 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc2304a383 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fdc22202298 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2220262b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc230754a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7fdbc2ffd700 (LWP 15715)):
#0  0x00007fdc37759fdb in __lll_lock_wait_private () from /usr/lib/libc.so.6
#1  0x00007fdc3775ba94 in __fprintf_chk () from /usr/lib/libc.so.6
#2  0x00007fdc13fe79ee in ?? () from /usr/lib/libevent-2.0.so.5
#3  0x00007fdc13fe7be4 in event_warn () from /usr/lib/libevent-2.0.so.5
#4  0x00007fdc13fec2f8 in ?? () from /usr/lib/libevent-2.0.so.5
#5  0x00007fdc13fd636d in event_base_loop () from /usr/lib/libevent-2.0.so.5
#6  0x00007fdc2301ff7a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007fdc222021e8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007fdc2220261b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#11 0x00007fdc230754a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#12 0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#13 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#14 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7fdbc37fe700 (LWP 15714)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc230692b5 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23069385 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc2304a383 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fdc22202138 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2220260b in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc230754a8 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#9  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#10 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7fdbc3fff700 (LWP 15713)):
#0  0x00007fdc2d41d4b8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc23068a92 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23078098 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc230785cd in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7fdbd8a58700 (LWP 15712)):
#0  0x00007fdc2d41d4b8 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc23068a92 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23078098 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc230785cd in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 13 (Thread 0x7fdbd9259700 (LWP 15711)):
#0  0x00007fdc2d41d10f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fdc230692b5 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#2  0x00007fdc23069385 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#3  0x00007fdc2304a383 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#4  0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#5  0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#6  0x00007fdc2307542a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#7  0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7fdbd9a5a700 (LWP 15710)):
#0  0x00007fdc3774054d in write () from /usr/lib/libc.so.6
#1  0x00007fdc376d7867 in _IO_new_file_write () from /usr/lib/libc.so.6
#2  0x00007fdc376d6bb2 in new_do_write () from /usr/lib/libc.so.6
#3  0x00007fdc376d7fbe in __GI__IO_file_xsputn () from /usr/lib/libc.so.6
#4  0x00007fdc376aed15 in buffered_vfprintf () from /usr/lib/libc.so.6
#5  0x00007fdc376abf95 in vfprintf () from /usr/lib/libc.so.6
#6  0x00007fdc3775bae9 in __fprintf_chk () from /usr/lib/libc.so.6
#7  0x00007fdc13fe79ee in ?? () from /usr/lib/libevent-2.0.so.5
#8  0x00007fdc13fe7be4 in event_warn () from /usr/lib/libevent-2.0.so.5
#9  0x00007fdc13fec2f8 in ?? () from /usr/lib/libevent-2.0.so.5
#10 0x00007fdc13fd636d in event_base_loop () from /usr/lib/libevent-2.0.so.5
#11 0x00007fdc2301ff7a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#12 0x00007fdc2305c5d4 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#13 0x00007fdc23046565 in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#14 0x00007fdc2307542a in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#15 0x00007fdc2307174c in ?? () from /usr/lib/libQt5WebEngineCore.so.5
#16 0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#17 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7fdbdbb55700 (LWP 15706)):
#0  0x00007fdc3774448d in poll () from /usr/lib/libc.so.6
#1  0x00007fdc2b899066 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7fdbdc356700 (LWP 15704)):
#0  0x00007fdc2b8dcf84 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007fdc2b898a79 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b899004 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7fdbe7720700 (LWP 15692)):
#0  0x00007fdc3775a02f in __libc_enable_asynccancel () from /usr/lib/libc.so.6
#1  0x00007fdc37744482 in poll () from /usr/lib/libc.so.6
#2  0x00007fdc2b899066 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7fdbfd74d700 (LWP 15690)):
#0  0x00007fdc38045f34 in QMutex::lock() () from /usr/lib/libQt5Core.so.5
#1  0x00007fdc3827ce79 in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007fdc2b898a81 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b899004 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fdbfe16e700 (LWP 15688)):
#0  0x00007fdc2b8dcf60 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007fdc2b898a8c in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b899004 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fdbfe96f700 (LWP 15686)):
#0  0x00007fdc2b8960ff in ?? () from /usr/lib/libglib-2.0.so.0
#1  0x00007fdc2b89855b in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b898f8b in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fdbff170700 (LWP 15684)):
#0  0x00007fdc2b8dcf84 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007fdc2b898bfa in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b8990d0 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fdbfffff700 (LWP 15683)):
#0  0x00007fdc377404ed in read () from /usr/lib/libc.so.6
#1  0x00007fdc2b8dbbc0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b898b36 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc2b899004 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fdc05354700 (LWP 15682)):
#0  0x00007fdc3774448d in poll () from /usr/lib/libc.so.6
#1  0x00007fdc2b899066 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007fdc3827d59b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc3804a0f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fdc3667fe75 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fdc0d14d700 (LWP 15681)):
#0  0x00007fdc3774448d in poll () from /usr/lib/libc.so.6
#1  0x00007fdc2aa968e0 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fdc2aa98679 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007fdc0e820469 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fdc3804ed78 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fdc2d417454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fdc3774d7df in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fdc3a883f40 (LWP 15680)):
[KCrash Handler]
#5  0x00007fdc3769804f in raise () from /usr/lib/libc.so.6
#6  0x00007fdc3769947a in abort () from /usr/lib/libc.so.6
#7  0x00007fdc37cab4bd in __gnu_cxx::__verbose_terminate_handler () at /build/gcc/src/gcc/libstdc++-v3/libsupc++/vterminate.cc:95
#8  0x00007fdc37ca9276 in __cxxabiv1::__terminate (handler=<optimized out>) at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:47
#9  0x00007fdc37ca92c1 in std::terminate () at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:57
#10 0x00007fdc37ca94d8 in __cxxabiv1::__cxa_throw (obj=0x40ac4b0, tinfo=0x7fdc1f01b168 <typeinfo for Xapian::DatabaseModifiedError>, dest=0x7fdc1ecade60 <Xapian::DatabaseModifiedError::~DatabaseModifiedError()>) at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_throw.cc:87
#11 0x00007fdc1ed07bfe in ChertTable::set_overwritten() const () from /usr/lib/libxapian.so.22
#12 0x00007fdc1ed0aa08 in ChertTable::block_to_cursor(Cursor*, int, unsigned int) const () from /usr/lib/libxapian.so.22
#13 0x00007fdc1ed0ab6f in ChertTable::find(Cursor*) const () from /usr/lib/libxapian.so.22
#14 0x00007fdc1ed0ddcf in ChertTable::get_exact_entry(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) const () from /usr/lib/libxapian.so.22
#15 0x00007fdc1ed00c32 in ?? () from /usr/lib/libxapian.so.22
#16 0x00007fdc1ecf5d2a in ?? () from /usr/lib/libxapian.so.22
#17 0x00007fdc1ec6c397 in Xapian::Document::Internal::get_data[abi:cxx11]() const () from /usr/lib/libxapian.so.22
#18 0x00007fdc1ec6c3d0 in Xapian::Document::get_data[abi:cxx11]() const () from /usr/lib/libxapian.so.22
#19 0x00007fdc323c2112 in Akonadi::Search::PIM::ContactCompleter::complete() () from /usr/lib/libKF5AkonadiSearchPIM.so.5
#20 0x00007fdc328d724f in ?? () from /usr/lib/libKF5Libkdepim.so.5
#21 0x00007fdc328d7538 in ?? () from /usr/lib/libKF5Libkdepim.so.5
#22 0x00007fdc3825485e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#23 0x00007fdc38261568 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/libQt5Core.so.5
#24 0x00007fdc38255303 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#25 0x00007fdc38f08e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#26 0x00007fdc38f105b1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#27 0x00007fdc38228c80 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#28 0x00007fdc3827c51e in QTimerInfoList::activateTimers() () from /usr/lib/libQt5Core.so.5
#29 0x00007fdc3827ca41 in ?? () from /usr/lib/libQt5Core.so.5
#30 0x00007fdc2b898e67 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#31 0x00007fdc2b8990d0 in ?? () from /usr/lib/libglib-2.0.so.0
#32 0x00007fdc2b89917c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#33 0x00007fdc3827d57f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#34 0x00007fdc382270da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#35 0x00007fdc3822f5cc in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#36 0x0000000000403954 in ?? ()
#37 0x00007fdc37685291 in __libc_start_main () from /usr/lib/libc.so.6
#38 0x000000000040403a in _start ()

Possible duplicates by query: bug 355966, bug 355218, bug 353304.

Reported using DrKonqi
Comment 1 Kevin Funk 2018-01-26 15:10:30 UTC 
*** Bug 385860 has been marked as a duplicate of this bug. ***
Comment 2 Kevin Funk 2018-01-26 15:11:30 UTC 
*** Bug 386545 has been marked as a duplicate of this bug. ***
Comment 3 Kevin Funk 2018-01-26 15:11:45 UTC 
*** Bug 385770 has been marked as a duplicate of this bug. ***
Comment 4 Kevin Funk 2018-01-26 15:12:58 UTC 
*** Bug 386198 has been marked as a duplicate of this bug. ***
Comment 5 Kevin Funk 2018-01-26 15:18:32 UTC 
According to Laurent, the following commit fixed this issue:

commit 94e608dffa8112c94cf88c16e67afaea70b40d7b (origin/Applications/17.12)
Author: Daniel Vrátil <dvratil@kde.org>
Date:   Thu Jan 25 12:54:49 2018 +0100

    Handle DatabaseCorruptError exception in ContactCompleter
Comment 6 Kevin Funk 2018-01-26 15:26:07 UTC 
Work-around: Disabling the 'use addresses indexed from emails for autocompletion' (Settings -> Configure KMail -> Composer) avoids the crash.
Comment 7 Daniel Vrátil 2018-01-26 16:53:08 UTC 
Git commit d43b22a5132bb41981fa1594da0f97455f370383 by Daniel Vrátil.
Committed on 26/01/2018 at 16:52.
Pushed by dvratil into branch 'Applications/17.12'.

Handle DatabaseModifiedError when querying email contacts

This may occur if KMail tries to autocomplete contacts in composer
while the Indexing Agent is indexing new emails thus changing the
database between queries.
FIXED-IN: 17.12.03

M  +14   -10   lib/contactcompleter.cpp

https://commits.kde.org/akonadi-search/d43b22a5132bb41981fa1594da0f97455f370383