Thread 1 (Thread 0x7f3c7b7fe700 (LWP 8271)):
#0  0x00007f3cd9f23038 in __memmove_ssse3_back () at /lib64/libc.so.6
#1  0x00007f3cda859f1b in QString::replace_helper(unsigned int*, int, int, QChar const*, int) (__len=<optimized out>, __src=<optimized out>, __dest=<optimized out>)
    at /usr/include/bits/string3.h:59
#2  0x00007f3cda859f1b in QString::replace_helper(unsigned int*, int, int, QChar const*, int) (this=0x7f3c7b7fc500, indices=<optimized out>, nIndices=1, blen=7, after=0x7f3c0c3d3608, alen=<optimized out>) at tools/qstring.cpp:2292
#3  0x00007f3cda85a217 in QString::replace(int, int, QChar const*, int) (this=0x7f3c7b7fc500, pos=<optimized out>, len=<optimized out>, unicode=<optimized out>, size=<optimized out>) at tools/qstring.cpp:2211
#4  0x00007f3cda85a253 in QString::replace(int, int, QString const&) (this=<optimized out>, pos=<optimized out>, len=<optimized out>, after=...)
    at tools/qstring.cpp:2193
#5  0x00007f3cdb2c1bf3 in QSqlResult::exec() () at /usr/lib64/libQt5Sql.so.5
#6  0x00007f3cdb2b5392 in QSqlQuery::exec() () at /usr/lib64/libQt5Sql.so.5
#7  0x0000000000527f56 in Akonadi::Server::QueryBuilder::exec() (this=this@entry=0x7f3c7b7fcd70)
    at /usr/src/debug/akonadi-15.12.3/src/server/storage/querybuilder.cpp:389
#8  0x0000000000570433 in Akonadi::Server::FetchHelper::isScopeLocal(Akonadi::Scope const&) (this=this@entry=0x7f3c7b7fd540, scope=...)
    at /usr/src/debug/akonadi-15.12.3/src/server/handler/fetchhelper.cpp:282
#9  0x000000000057492b in Akonadi::Server::FetchHelper::fetchItems() (this=this@entry=0x7f3c7b7fd540)
    at /usr/src/debug/akonadi-15.12.3/src/server/handler/fetchhelper.cpp:323
#10 0x000000000056c60b in Akonadi::Server::Fetch::parseStream() (this=0x7f3c68054880) at /usr/src/debug/akonadi-15.12.3/src/server/handler/fetch.cpp:47
#11 0x000000000055af61 in Akonadi::Server::Connection::slotNewData() (this=0x7f3c680038e0) at /usr/src/debug/akonadi-15.12.3/src/server/connection.cpp:224
#12 0x00007f3cda9cbcc7 in QMetaObject::activate(QObject*, int, int, void**) (a=0x7f3c7b7fd880, r=0x7f3c680038e0, this=<optimized out>)
    at ../../src/corelib/kernel/qobject_impl.h:124
#13 0x00007f3cda9cbcc7 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x7f3c68003b80, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3698
#14 0x00007f3cda9cbe3a in QMetaObject::activate(QObject*, int, int, void**) (sender=0x7f3c68003cd8, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3713
#15 0x00007f3cdb5acc8e in  () at /usr/lib64/libQt5Network.so.5
#16 0x00007f3cdb5b8c41 in  () at /usr/lib64/libQt5Network.so.5
#17 0x00007f3cda99ebcc in QCoreApplication::notifyInternal(QObject*, QEvent*) (event=0x7f3c7b7fdad0, receiver=0x7f3c68004250, this=0x2615030)
    at kernel/qcoreapplication.cpp:1038
#18 0x00007f3cda99ebcc in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x2615030, receiver=0x7f3c68004250, event=event@entry=0x7f3c7b7fdad0)
    at kernel/qcoreapplication.cpp:965
#19 0x00007f3cda9f289d in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (event=0x7f3c7b7fdad0, receiver=<optimized out>)
    at ../../src/corelib/kernel/qcoreapplication.h:224
#20 0x00007f3cda9f289d in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer) (source=0x7f3c68003000) at kernel/qeventdispatcher_glib.cpp:101
#21 0x00007f3cd8102197 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#22 0x00007f3cd81023c8 in  () at /usr/lib64/libglib-2.0.so.0
#23 0x00007f3cd810246c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#24 0x00007f3cda9f240b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3c680008c0, flags=...)
    at kernel/qeventdispatcher_glib.cpp:420
#25 0x00007f3cda99c53a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3c7b7fdcc0, flags=..., flags@entry=...)
    at kernel/qeventloop.cpp:204
#26 0x00007f3cda7c8adc in QThread::exec() (this=this@entry=0x26c7340) at thread/qthread.cpp:503
#27 0x0000000000482a32 in Akonadi::Server::ConnectionThread::run() (this=0x26c7340) at /usr/src/debug/akonadi-15.12.3/src/server/connectionthread.cpp:44
#28 0x00007f3cda7cd91f in QThreadPrivate::start(void*) (arg=0x26c7340) at thread/qthread_unix.cpp:331
#29 0x00007f3cd9bd3424 in start_thread () at /lib64/libpthread.so.0
#30 0x00007f3cd9ed1add in clone () at /lib64/libc.so.6
Undefined command: "exit".  Try "help".
Please answer y or n.
Detaching from program: /usr/bin/akonadiserver, process 8271