#0  __GI_raise (sig=<optimized out>) at ../sysdeps/unix/sysv/linux/raise.c:51
        set = {__val = {0, 0, 0, 0, 0, 0, 0, 42, 42, 42, 1256, 0, 0, 0, 0, 0}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#1  0x00007f4bf77e17f9 in KCrash::defaultCrashHandler(int) () from /usr/lib/x86_64-linux-gnu/libKF5Crash.so.5
No symbol table info available.
#2  <signal handler called>
No locales.
#3  0x00007f4bf4f9a220 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
No symbol table info available.
#4  0x00007f4bf4f9686a in KMainWindow::memberList() () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
No symbol table info available.
#5  0x00007f4bf7d4f4c7 in KMKernel::dumpDeadLetters() () from /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
No symbol table info available.
#6  0x00007f4bf7d56c47 in ?? () from /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
No symbol table info available.
#7  0x00007f4bf77e13e1 in KCrash::defaultCrashHandler(int) () from /usr/lib/x86_64-linux-gnu/libKF5Crash.so.5
No symbol table info available.
#8  <signal handler called>
No locales.
#9  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
        set = {__val = {0, 281470681751456, 0, 139962783695648, 144, 139964215044512, 272, 14355434265641104, 139962783694904, 183, 54347402960, 7, 192, 139962649413920, 224, 18446744073709551488}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#10 0x00007f4bf54c5801 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x7f4b98005ab0, sa_sigaction = 0x7f4b98005ab0}, sa_mask = {__val = {139964218546240, 139962907070488, 139964222918455, 28147914290102383, 139962783695648, 139962649590496, 2944971592118104576, 139962907070632, 139962907070864, 2, 0, 0, 0, 0, 0, 0}}, sa_flags = 0, sa_restorer = 0x7f4ba75b90a8}
        sigs = {__val = {32, 0 <repeats 15 times>}}
        __cnt = <optimized out>
        __set = <optimized out>
        __cnt = <optimized out>
        __set = <optimized out>
#11 0x00007f4bf5c98fa7 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#12 0x00007f4bf5c944da in qt_assert_x(char const*, char const*, char const*, int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#13 0x00007f4bdcefff43 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiPrivate.so.5
No symbol table info available.
#14 0x00007f4bdcf23d7b in Akonadi::Protocol::Factory::response(Akonadi::Protocol::Command::Type) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiPrivate.so.5
No symbol table info available.
#15 0x00007f4bdcf2bfdd in Akonadi::Protocol::deserialize(QIODevice*) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiPrivate.so.5
No symbol table info available.
#16 0x00007f4bef4f3977 in Akonadi::Connection::dataReceived() () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5abi1
No symbol table info available.
#17 0x00007f4bf5ebb2bf in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#18 0x00007f4bf5ebb1a5 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#19 0x00007f4bec46ac03 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
No symbol table info available.
#20 0x00007f4bec46acb4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
No symbol table info available.
#21 0x00007f4bec47b871 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
No symbol table info available.
#22 0x00007f4bf6c0a82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
No symbol table info available.
#23 0x00007f4bf6c120f4 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
No symbol table info available.
#24 0x00007f4bf5e8c5c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#25 0x00007f4bf5ee613d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#26 0x00007f4be9241287 in ?? ()
No symbol table info available.
#27 0x0000000000000000 in ?? ()
No symbol table info available.