Application: kmail (5.2.3)

Qt Version: 5.9.2
Frameworks Version: 5.37.0
Operating System: Linux 4.13.0-1-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:
I updated some information on one of my identities which caused an error creating several empty identities . after removing these identities and updating the the ones I use, I can no longer compose email. 
Trying to compose an email causes kmail to close/crash after I typ in a few characters of the 'To' address.

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff1cb24de80 (LWP 2367))]

Thread 21 (Thread 0x7ff107fff700 (LWP 2432)):
#0  0x00007ff1bc3135a5 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff1bc2cdce6 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2ce1e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1be082494 in start_thread (arg=0x7ff107fff700) at pthread_create.c:333
#9  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 20 (Thread 0x7ff11cf4a700 (LWP 2429)):
#0  0x00007ff1bc3135c4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff1bc2cd027 in g_main_context_acquire () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2ce015 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1be082494 in start_thread (arg=0x7ff11cf4a700) at pthread_create.c:333
#9  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 19 (Thread 0x7ff11e5da700 (LWP 2420)):
#0  0x00007ffedd64e979 in  ()
#1  0x00007ffedd64ec2a in clock_gettime ()
#2  0x00007ff1c8200956 in __GI___clock_gettime (clock_id=1, tp=0x7ff11e5d99f0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007ff1c8d25941 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff1c8d24179 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8d24755 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8d25d9e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1bc2cd698 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007ff1bc2ce08b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007ff1be082494 in start_thread (arg=0x7ff11e5da700) at pthread_create.c:333
#15 0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 18 (Thread 0x7ff11efff700 (LWP 2406)):
#0  0x00007ff1bc2cb0b2 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff1bc2cd5cb in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2ce08b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1be082494 in start_thread (arg=0x7ff11efff700) at pthread_create.c:333
#9  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 17 (Thread 0x7ff164da8700 (LWP 2404)):
#0  0x00007ff1c81e66dd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff1bc312270 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2cdc3b in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce100 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff1be082494 in start_thread (arg=0x7ff164da8700) at pthread_create.c:333
#10 0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 16 (Thread 0x7ff1655a9700 (LWP 2402)):
#0  0x00007ff1bc3135a9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff1bc2cdb6c in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2ce100 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1be082494 in start_thread (arg=0x7ff1655a9700) at pthread_create.c:333
#9  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 15 (Thread 0x7ff165daa700 (LWP 2400)):
#0  0x00007ff1bc3135c4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff1bc2cdb59 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2ce100 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1be082494 in start_thread (arg=0x7ff165daa700) at pthread_create.c:333
#9  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 14 (Thread 0x7ff16c9b9700 (LWP 2398)):
#0  0x00007ff1c81e66dd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff1bc312270 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2cdc3b in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce100 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff1be082494 in start_thread (arg=0x7ff16c9b9700) at pthread_create.c:333
#10 0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 13 (Thread 0x7ff16d1ba700 (LWP 2396)):
#0  0x00007ff1bc3135a9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff1bc2cd505 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2ce08b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1be082494 in start_thread (arg=0x7ff16d1ba700) at pthread_create.c:333
#9  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 12 (Thread 0x7ff16fff2700 (LWP 2395)):
#0  0x00007ff1be08815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff1753d620b in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007ff1753d6127 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007ff1be082494 in start_thread (arg=0x7ff16fff2700) at pthread_create.c:333
#4  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 11 (Thread 0x7ff17093a700 (LWP 2394)):
#0  0x00007ff1be08815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff1753d620b in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007ff1753d6127 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007ff1be082494 in start_thread (arg=0x7ff17093a700) at pthread_create.c:333
#4  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 10 (Thread 0x7ff17ee2a700 (LWP 2382)):
#0  0x00007ff1c8aedfb2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007ff1c8d26421 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff1bc2cdb61 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce100 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff1be082494 in start_thread (arg=0x7ff17ee2a700) at pthread_create.c:333
#10 0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 9 (Thread 0x7ff1995e6700 (LWP 2379)):
#0  0x00007ff1bc3135c4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff1bc2cd688 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2ce08b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1be082494 in start_thread (arg=0x7ff1995e6700) at pthread_create.c:333
#9  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 8 (Thread 0x7ff199de7700 (LWP 2377)):
#0  0x00007ff1c81ea66d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff1bc2ce159 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1be082494 in start_thread (arg=0x7ff199de7700) at pthread_create.c:333
#8  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 7 (Thread 0x7ff19a5e8700 (LWP 2375)):
#0  0x00007ff1bc3135c4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff1bc2ce276 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1be082494 in start_thread (arg=0x7ff19a5e8700) at pthread_create.c:333
#7  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 6 (Thread 0x7ff19ade9700 (LWP 2373)):
#0  0x00007ff1bc3135a9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff1bc2cd154 in g_main_context_release () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff1bc2ce116 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1be082494 in start_thread (arg=0x7ff19ade9700) at pthread_create.c:333
#9  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 5 (Thread 0x7ff19b5ea700 (LWP 2372)):
#0  0x00007ff1c8d2481b in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007ff1c8d25d9e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff1bc2cd698 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce08b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff1be082494 in start_thread (arg=0x7ff19b5ea700) at pthread_create.c:333
#10 0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 4 (Thread 0x7ff1a0f7a700 (LWP 2371)):
#0  0x00007ff1c82002cf in __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:67
#1  0x00007ff1c81ea662 in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007ff1bc2ce159 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff1c8d2602b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff1c8aea27a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff1c7150e45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff1be082494 in start_thread (arg=0x7ff1a0f7a700) at pthread_create.c:333
#10 0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 3 (Thread 0x7ff1a2faa700 (LWP 2370)):
#0  0x00007ff1c81ea66d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff1bb197150 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff1bb198ee9 in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff1a512d029 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007ff1c8aef14d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff1be082494 in start_thread (arg=0x7ff1a2faa700) at pthread_create.c:333
#6  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 2 (Thread 0x7ff1a61ca700 (LWP 2369)):
#0  0x00007ff1be08815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff1c8777a6c in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2  0x00007ff1b8da2a77 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007ff1b8da2bb9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#4  0x00007ff1c877d72f in  () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x00007ff1be082494 in start_thread (arg=0x7ff1a61ca700) at pthread_create.c:333
#6  0x00007ff1c81f3abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 1 (Thread 0x7ff1cb24de80 (LWP 2367)):
[KCrash Handler]
#6  0x00007ff1c813dfff in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007ff1c813f42a in __GI_abort () at abort.c:89
#8  0x00007ff1c8754b85 in __gnu_cxx::__verbose_terminate_handler() () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9  0x00007ff1c8752956 in  () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007ff1c87529a1 in  () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007ff1c8752be4 in  () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007ff1af9a3ffa in  () at /usr/lib/x86_64-linux-gnu/libxapian.so.30
#13 0x00007ff1af9a6c0a in  () at /usr/lib/x86_64-linux-gnu/libxapian.so.30
#14 0x00007ff1af9a6e63 in  () at /usr/lib/x86_64-linux-gnu/libxapian.so.30
#15 0x00007ff1af98d689 in  () at /usr/lib/x86_64-linux-gnu/libxapian.so.30
#16 0x00007ff1af8eb6ba in Xapian::Document::Internal::get_data[abi:cxx11]() const () at /usr/lib/x86_64-linux-gnu/libxapian.so.30
#17 0x00007ff1af8eb6f0 in Xapian::Document::get_data[abi:cxx11]() const () at /usr/lib/x86_64-linux-gnu/libxapian.so.30
#18 0x00007ff1ba8c65c6 in Akonadi::Search::PIM::ContactCompleter::complete() () at /usr/lib/x86_64-linux-gnu/libKF5AkonadiSearchPIM.so.5
#19 0x00007ff1c36042c5 in  () at /usr/lib/x86_64-linux-gnu/libKF5Libkdepim.so.5
#20 0x00007ff1c36044b8 in  () at /usr/lib/x86_64-linux-gnu/libKF5Libkdepim.so.5
#21 0x00007ff1c8cfbd8f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007ff1c8d08747 in QTimer::timeout(QTimer::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007ff1c8d08aa8 in QTimer::timerEvent(QTimerEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007ff1c8cfc79b in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007ff1c9f3759c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007ff1c9f3ee64 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007ff1c8ccd178 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007ff1c8d254ae in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007ff1c8d25c71 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007ff1bc2cdfa7 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007ff1bc2ce1e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007ff1bc2ce26c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007ff1c8d2600f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007ff1c8ccb1ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007ff1c8cd4134 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x0000562fb8aafa4c in  ()
#37 0x00007ff1c812b2e1 in __libc_start_main (main=0x562fb8aae9a0, argc=3, argv=0x7ffedd610478, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffedd610468) at ../csu/libc-start.c:291
#38 0x0000562fb8ab013a in _start ()

Possible duplicates by query: bug 385854, bug 382744, bug 382425, bug 380394, bug 377656.

Reported using DrKonqi