Application: kontact (5.2.3)

Qt Version: 5.6.1
Frameworks Version: 5.23.0
Operating System: Linux 4.4.8-hardened-r1 x86_64
Distribution: "Gentoo Base System release 2.2"

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

Kontact crash while closing the application. 
I use zanshin akonadi plugin (https://zanshin.kde.org/) which may affects the stability.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x3a18be63840 (LWP 30052))]

Thread 35 (Thread 0x3a189cc9700 (LWP 30055)):
#0  0x000003a1a23f775d in poll () from /lib64/libc.so.6
#1  0x000003a19cb16c6a in poll (__timeout=-1, __nfds=1, __fds=0x3a189cc8c50) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x48da1773a0, cond=cond@entry=0x48da1773e0, vector=vector@entry=0x0, count=count@entry=0x0) at /usr/src/debug/x11-libs/libxcb-1.11.1/libxcb-1.11.1/src/xcb_conn.c:459
#3  0x000003a19cb190cf in xcb_wait_for_event (c=0x48da1773a0) at /usr/src/debug/x11-libs/libxcb-1.11.1/libxcb-1.11.1/src/xcb_in.c:693
#4  0x000003a18ba87709 in QXcbEventReader::run (this=0x48da18a3d0) at qxcbconnection.cpp:1325
#5  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48da18a3d0) at thread/qthread_unix.cpp:341
#6  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#7  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 34 (Thread 0x3a17b0e7700 (LWP 30056)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a188849ca3 in radeon_drm_cs_emit_ioctl () from /usr/lib64/dri/radeonsi_dri.so
#2  0x000003a18884929a in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 33 (Thread 0x3a177520700 (LWP 30057)):
#0  0x000003a19ab82d8a in g_wakeup_acknowledge (wakeup=0x3a1840015b0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gwakeup.c:211
#1  0x000003a19ab302ac in g_main_context_check (context=context@entry=0x3a170000990, max_priority=2147483647, fds=fds@entry=0x3a170033f30, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3632
#2  0x000003a19ab307b3 in g_main_context_iterate (context=context@entry=0x3a170000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3837
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a170000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a1700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a17751fd20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=this@entry=0x3a1a523e2c0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#7  0x000003a1a51c5565 in QDBusConnectionManager::run (this=0x3a1a523e2c0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:189
#8  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x3a1a523e2c0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#9  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#10 0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 32 (Thread 0x3a1762d6700 (LWP 30058)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a1a04030f1 in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000003a1a040313b in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 31 (Thread 0x3a16f127700 (LWP 30059)):
#0  0x000003a1a23f32fd in read () from /lib64/libc.so.6
#1  0x000003a19ab82d71 in read (__nbytes=16, __buf=0x3a16f126b10, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x3a1700025a0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gwakeup.c:210
#3  0x000003a19ab302ac in g_main_context_check (context=context@entry=0x3a168000990, max_priority=2147483647, fds=fds@entry=0x3a168002e70, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3632
#4  0x000003a19ab307b3 in g_main_context_iterate (context=context@entry=0x3a168000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3837
#5  0x000003a19ab30981 in g_main_context_iteration (context=0x3a168000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#6  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a1680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#7  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a16f126d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#9  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48da419e90) at thread/qthread_unix.cpp:341
#10 0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#11 0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 30 (Thread 0x3a16ddbe700 (LWP 30060)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a1a02454dc in JSC::BlockAllocator::blockFreeingThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000003a1a043a157 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 29 (Thread 0x3a16d50e700 (LWP 30061)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a1a0246673 in JSC::GCThread::gcThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000003a1a043a157 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 28 (Thread 0x3a16cc0d700 (LWP 30062)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a1a0246673 in JSC::GCThread::gcThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000003a1a043a157 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x3a167fa7700 (LWP 30063)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a1a0246673 in JSC::GCThread::gcThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000003a1a043a157 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x3a16778a700 (LWP 30064)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a1a0246673 in JSC::GCThread::gcThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000003a1a043a157 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x3a166f25700 (LWP 30065)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a1a0246673 in JSC::GCThread::gcThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000003a1a043a157 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x3a166683700 (LWP 30066)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a1a0246673 in JSC::GCThread::gcThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000003a1a043a157 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x3a13bfe7700 (LWP 30069)):
#0  0x000003a1a23f775d in poll () from /lib64/libc.so.6
#1  0x000003a19ab30815 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x3a134003020, timeout=-1, context=0x3a134000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x3a134000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3835
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a134000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a1340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a13bfe6d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48da6df620) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x3a13aec1700 (LWP 30073)):
#0  0x000003a1a23f32fd in read () from /lib64/libc.so.6
#1  0x000003a19ab82d71 in read (__nbytes=16, __buf=0x3a13aec0b10, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x3a12c002360) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gwakeup.c:210
#3  0x000003a19ab302ac in g_main_context_check (context=context@entry=0x3a130000990, max_priority=2147483647, fds=fds@entry=0x3a130003220, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3632
#4  0x000003a19ab307b3 in g_main_context_iterate (context=context@entry=0x3a130000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3837
#5  0x000003a19ab30981 in g_main_context_iteration (context=0x3a130000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#6  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a1300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#7  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a13aec0d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#9  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48da66bff0) at thread/qthread_unix.cpp:341
#10 0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#11 0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x3a121075700 (LWP 30087)):
#0  0x000003a19ab2c943 in g_source_iter_next (iter=iter@entry=0x3a121074b70, source=source@entry=0x3a121074b68) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:953
#1  0x000003a19ab30132 in g_main_context_check (context=context@entry=0x3a110000990, max_priority=2147483647, fds=fds@entry=0x3a110003220, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3661
#2  0x000003a19ab307b3 in g_main_context_iterate (context=context@entry=0x3a110000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3837
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a110000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a1100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a121074d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dab02700) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x3a108f68700 (LWP 30160)):
#0  0x000003a19ab84c40 in g_mutex_lock (mutex=mutex@entry=0x3a0f4000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gthread-posix.c:1336
#1  0x000003a19ab30080 in g_main_context_check (context=context@entry=0x3a0f4000990, max_priority=2147483647, fds=fds@entry=0x3a0f4002e20, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3621
#2  0x000003a19ab307b3 in g_main_context_iterate (context=context@entry=0x3a0f4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3837
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a0f4000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0f40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a108f67d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48db7e6d20) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x3a0fbf6c700 (LWP 30163)):
#0  0x000003a1a23f775d in poll () from /lib64/libc.so.6
#1  0x000003a19ab30815 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x3a0f0002e20, timeout=-1, context=0x3a0f0000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x3a0f0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3835
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a0f0000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a0fbf6bd60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48db7f0670) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x3a0f8e80700 (LWP 30182)):
#0  0x000003a1a2ee5511 in socketNotifierSourceCheck (source=0x3a0e40012d0) at kernel/qeventdispatcher_glib.cpp:69
#1  0x000003a19ab30207 in g_main_context_check (context=context@entry=0x3a0e4000990, max_priority=2147483647, fds=fds@entry=0x3a0e4003ac0, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3681
#2  0x000003a19ab307b3 in g_main_context_iterate (context=context@entry=0x3a0e4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3837
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a0e4000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a0f8e7fd60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48db943d30) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x3a0dffe8700 (LWP 30184)):
#0  0x000003a19c6f8425 in pthread_getspecific () from /lib64/libpthread.so.0
#1  0x000003a19ab8454e in g_private_get (key=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gthread-posix.c:1057
#2  0x000003a19ab602f2 in g_thread_self () at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gthread.c:976
#3  0x000003a19ab30971 in g_main_context_iteration (context=0x3a0d8000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a0dffe7d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48db9468c0) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x3a0df6ef700 (LWP 30384)):
#0  0x000003a19c6f757f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x000003a190bfc8fd in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x3a190cd5180 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x000003a190bfc95b in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#4  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x3a0dc8b2700 (LWP 30460)):
#0  0x000003a1a23f775d in poll () from /lib64/libc.so.6
#1  0x000003a19ab30815 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x3a0d00026c0, timeout=-1, context=0x3a0d0004fc0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x3a0d0004fc0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3835
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a0d0004fc0, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0d0005100, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a0dc8b1d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dcf65300) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x3a0d5e11700 (LWP 30518)):
#0  0x000003a1a23f32fd in read () from /lib64/libc.so.6
#1  0x000003a19ab82d71 in read (__nbytes=16, __buf=0x3a0d5e10b10, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x3a0d00035b0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gwakeup.c:210
#3  0x000003a19ab302ac in g_main_context_check (context=context@entry=0x3a0c80171d0, max_priority=2147483647, fds=fds@entry=0x3a0c8025e70, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3632
#4  0x000003a19ab307b3 in g_main_context_iterate (context=context@entry=0x3a0c80171d0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3837
#5  0x000003a19ab30981 in g_main_context_iteration (context=0x3a0c80171d0, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#6  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0c8008f70, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#7  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a0d5e10d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#9  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dbbe0810) at thread/qthread_unix.cpp:341
#10 0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#11 0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x3a0c5ab1700 (LWP 30520)):
#0  0x000003a1a23f775d in poll () from /lib64/libc.so.6
#1  0x000003a19ab30815 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x3a0c00202c0, timeout=-1, context=0x3a0c00223b0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x3a0c00223b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3835
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a0c00223b0, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0c00204c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a0c5ab0d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dd27bef0) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x3a0c51d5700 (LWP 30522)):
#0  0x000003a1a23f775d in poll () from /lib64/libc.so.6
#1  0x000003a19ab30815 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x3a0b8003220, timeout=-1, context=0x3a0b8000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x3a0b8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3835
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a0b8000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a0c51d4d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dd3dec20) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x3a0b52f4700 (LWP 31142)):
#0  0x000003a19ab2c8f9 in g_source_iter_next (iter=iter@entry=0x3a0b52f3b70, source=source@entry=0x3a0b52f3b68) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:923
#1  0x000003a19ab2fc8b in g_main_context_prepare (context=context@entry=0x3a0a0001800, priority=priority@entry=0x3a0b52f3bf0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3420
#2  0x000003a19ab30736 in g_main_context_iterate (context=context@entry=0x3a0a0001800, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3820
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a0a0001800, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0a0001de0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a0b52f3d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dd7e9f10) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x3a09f9ff700 (LWP 31144)):
#0  0x000003a1a23f32fd in read () from /lib64/libc.so.6
#1  0x000003a19ab82d71 in read (__nbytes=16, __buf=0x3a09f9feb10, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x3a0a0001110) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gwakeup.c:210
#3  0x000003a19ab302ac in g_main_context_check (context=context@entry=0x3a098000990, max_priority=2147483647, fds=fds@entry=0x3a098002020, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3632
#4  0x000003a19ab307b3 in g_main_context_iterate (context=context@entry=0x3a098000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3837
#5  0x000003a19ab30981 in g_main_context_iteration (context=0x3a098000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#6  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#7  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a09f9fed60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#9  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dda40560) at thread/qthread_unix.cpp:341
#10 0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#11 0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x3a09edad700 (LWP 31150)):
#0  0x000003a19ab84c5c in g_mutex_lock (mutex=mutex@entry=0x3a090000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gthread-posix.c:1338
#1  0x000003a19ab30212 in g_main_context_check (context=context@entry=0x3a090000990, max_priority=2147483647, fds=fds@entry=0x3a090003220, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3683
#2  0x000003a19ab307b3 in g_main_context_iterate (context=context@entry=0x3a090000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3837
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a090000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a09edacd60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dda43c80) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x3a09e534700 (LWP 31152)):
#0  g_mutex_unlock (mutex=0x3a094000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gthread-posix.c:1350
#1  0x000003a19ab2f769 in g_main_context_release (context=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3271
#2  0x000003a19ab307c9 in g_main_context_iterate (context=context@entry=0x3a094000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3842
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a094000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a09e533d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dd32e170) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x3a09dc35700 (LWP 31154)):
#0  0x000003a19ab3039c in g_main_context_dispatch (context=context@entry=0x3a088000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3773
#1  0x000003a19ab30878 in g_main_context_iterate (context=context@entry=0x3a088000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3840
#2  0x000003a19ab30981 in g_main_context_iteration (context=0x3a088000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#3  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#4  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a09dc34d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dceb57f0) at thread/qthread_unix.cpp:341
#7  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#8  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x3a09d37e700 (LWP 31156)):
#0  g_mutex_unlock (mutex=0x3a08c000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gthread-posix.c:1350
#1  0x000003a19ab2f560 in g_main_context_acquire (context=0x3a08c000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3228
#2  0x000003a19ab306c5 in g_main_context_iterate (context=context@entry=0x3a08c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3790
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a08c000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a08c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a09d37dd60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dd7f6150) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x3a086e27700 (LWP 31254)):
#0  0x000003a19ab2fde4 in g_main_context_prepare (context=context@entry=0x3a070000990, priority=priority@entry=0x3a086e26bf0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3453
#1  0x000003a19ab30736 in g_main_context_iterate (context=context@entry=0x3a070000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3820
#2  0x000003a19ab30981 in g_main_context_iteration (context=0x3a070000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#3  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#4  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a086e26d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dda86b00) at thread/qthread_unix.cpp:341
#7  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#8  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x3a084e69700 (LWP 31256)):
#0  0x000003a1a23f775d in poll () from /lib64/libc.so.6
#1  0x000003a19ab30815 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x3a074003220, timeout=-1, context=0x3a074000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x3a074000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3835
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a074000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a084e68d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48dd20f500) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x3a06ffc6700 (LWP 31258)):
#0  0x000003a1a23f775d in poll () from /lib64/libc.so.6
#1  0x000003a19ab30815 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x3a068002c20, timeout=-1, context=0x3a068000990) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x3a068000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3835
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a068000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a06ffc5d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48ddc67450) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x3a06f708700 (LWP 31260)):
#0  0x000003a19ab2ca57 in g_source_iter_clear (iter=iter@entry=0x3a06f707b70) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:967
#1  0x000003a19ab2fd78 in g_main_context_prepare (context=context@entry=0x3a060000990, priority=priority@entry=0x3a06f707bf0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3505
#2  0x000003a19ab30736 in g_main_context_iterate (context=context@entry=0x3a060000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3820
#3  0x000003a19ab30981 in g_main_context_iteration (context=0x3a060000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#4  0x000003a1a2ee5ad4 in QEventDispatcherGlib::processEvents (this=0x3a0600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3a06f707d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000003a1a2ca953d in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x000003a1a2caedb2 in QThreadPrivate::start (arg=0x48ddd0f070) at thread/qthread_unix.cpp:341
#8  0x000003a19c6f160c in start_thread () from /lib64/libpthread.so.0
#9  0x000003a1a240155d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x3a18be63840 (LWP 30052)):
[KCrash Handler]
#6  std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=0x84) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/bits/atomic_base.h:500
#7  QAtomicOps<int>::load<int> (_q_value=...) at ../../src/corelib/arch/qatomic_cxx11.h:96
#8  QBasicAtomicInteger<int>::load (this=0x84) at ../../src/corelib/thread/qbasicatomic.h:116
#9  QWeakPointer<QObject>::data (this=0x48dd90c6e8) at ../../src/corelib/tools/qsharedpointer_impl.h:597
#10 QPointer<QItemSelectionModel>::data (this=0x48dd90c6e8) at /usr/include/qt5/QtCore/qpointer.h:80
#11 QPointer<QItemSelectionModel>::operator QItemSelectionModel* (this=0x48dd90c6e8) at /usr/include/qt5/QtCore/qpointer.h:86
#12 QAbstractItemView::selectionModel (this=0x48dd1575b0) at itemviews/qabstractitemview.cpp:802
#13 0x000003a09fb41db8 in Widgets::PageView::setModel (this=0x48dd144520, model=0x0) at /usr/src/debug/kde-misc/zanshin-0.4.0/zanshin-0.4.0/src/widgets/pageview.cpp:205
#14 0x000003a09fb31b50 in Widgets::ApplicationComponents::setModel (this=this@entry=0x48dd8e0850, model=...) at /usr/src/debug/kde-misc/zanshin-0.4.0/zanshin-0.4.0/src/widgets/applicationcomponents.cpp:189
#15 0x000003a09fb32033 in Widgets::ApplicationComponents::~ApplicationComponents (this=this@entry=0x48dd8e0850, __in_chrg=<optimized out>) at /usr/src/debug/kde-misc/zanshin-0.4.0/zanshin-0.4.0/src/widgets/applicationcomponents.cpp:67
#16 0x000003a09fb3219f in Widgets::ApplicationComponents::~ApplicationComponents (this=0x48dd8e0850, __in_chrg=<optimized out>) at /usr/src/debug/kde-misc/zanshin-0.4.0/zanshin-0.4.0/src/widgets/applicationcomponents.cpp:68
#17 0x000003a1a2ebc424 in QObjectPrivate::deleteChildren (this=this@entry=0x48da2d1b40) at kernel/qobject.cpp:1963
#18 0x000003a1a39f7d50 in QWidget::~QWidget (this=0x48da2ce6d0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1674
#19 0x000003a1a4780588 in KMainWindow::~KMainWindow (this=0x48da2ce6d0, __in_chrg=<optimized out>) at /usr/src/debug/kde-frameworks/kxmlgui-5.23.0-r1/kxmlgui-5.23.0/src/kmainwindow.cpp:395
#20 0x000003a1a4c473a8 in Kontact::MainWindow::~MainWindow (this=this@entry=0x48da2ce6d0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /usr/src/debug/kde-apps/kdepim-16.04.3/kdepim-16.04.3/kontact/src/mainwindow.cpp:278
#21 0x000003a1a4c474cf in Kontact::MainWindow::~MainWindow (this=0x48da2ce6d0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /usr/src/debug/kde-apps/kdepim-16.04.3/kdepim-16.04.3/kontact/src/mainwindow.cpp:307
#22 0x000003a1a2ebc868 in QObject::event (this=this@entry=0x48da2ce6d0, e=e@entry=0x48e88593f0) at kernel/qobject.cpp:1247
#23 0x000003a1a39fc963 in QWidget::event (this=this@entry=0x48da2ce6d0, event=event@entry=0x48e88593f0) at kernel/qwidget.cpp:9178
#24 0x000003a1a3b2189b in QMainWindow::event (this=this@entry=0x48da2ce6d0, event=event@entry=0x48e88593f0) at widgets/qmainwindow.cpp:1543
#25 0x000003a1a4780d5a in KMainWindow::event (this=this@entry=0x48da2ce6d0, ev=ev@entry=0x48e88593f0) at /usr/src/debug/kde-frameworks/kxmlgui-5.23.0-r1/kxmlgui-5.23.0/src/kmainwindow.cpp:867
#26 0x000003a1a47c47b8 in KXmlGuiWindow::event (this=0x48da2ce6d0, ev=0x48e88593f0) at /usr/src/debug/kde-frameworks/kxmlgui-5.23.0-r1/kxmlgui-5.23.0/src/kxmlguiwindow.cpp:118
#27 0x000003a1a39a92f4 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x48da2ce6d0, e=0x48e88593f0) at kernel/qapplication.cpp:3804
#28 0x000003a1a39ae07e in QApplication::notify (this=0x3ea73c82fb0, receiver=0x48da2ce6d0, e=0x48e88593f0) at kernel/qapplication.cpp:3561
#29 0x000003a1a2e8b938 in QCoreApplication::notifyInternal2 (receiver=0x48da2ce6d0, event=event@entry=0x48e88593f0) at kernel/qcoreapplication.cpp:1015
#30 0x000003a1a2e8e4d7 in QCoreApplication::sendEvent (event=0x48e88593f0, receiver=<optimized out>) at kernel/qcoreapplication.h:225
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x48da1689e0) at kernel/qcoreapplication.cpp:1650
#32 0x000003a1a2e8eade in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1508
#33 0x000003a1a2ee5a09 in postEventSourceDispatch (s=0x48da240b70) at kernel/qeventdispatcher_glib.cpp:270
#34 0x000003a19ab3056c in g_main_dispatch (context=0x3a1840016f0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3154
#35 g_main_context_dispatch (context=context@entry=0x3a1840016f0) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3769
#36 0x000003a19ab30878 in g_main_context_iterate (context=context@entry=0x3a1840016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3840
#37 0x000003a19ab30981 in g_main_context_iteration (context=0x3a1840016f0, may_block=1) at /usr/src/debug/dev-libs/glib-2.46.2-r3/glib-2.46.2/glib/gmain.c:3901
#38 0x000003a1a2ee5abd in QEventDispatcherGlib::processEvents (this=0x48da23bbb0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#39 0x000003a1a2e89d5a in QEventLoop::exec (this=this@entry=0x3ea73c82d10, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#40 0x000003a1a2e92cb6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#41 0x00000048d91f77f3 in main (argc=1, argv=0x3ea73c83118) at /usr/src/debug/kde-apps/kdepim-16.04.3/kdepim-16.04.3/kontact/src/main.cpp:223

Reported using DrKonqi