Application: akonadi_maildir_resource (4.89.0)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-25-generic x86_64
Distribution: Ubuntu 15.10

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

Playing around with "look and feel" stuff on a new install. Was reverting icon theme to default. Crash occurred when I clicked "apply."

-- Backtrace:
Application: Akonadi Resource (akonadi_maildir_resource), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4a1eaa7840 (LWP 1253))]

Thread 2 (Thread 0x7f4a1c826700 (LWP 1273)):
#0  0x00007f4a2cf738dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4a289bebd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4a289c074f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f4a1e74da39 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#4  0x00007f4a2d87d2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a28bdd6aa in start_thread (arg=0x7f4a1c826700) at pthread_create.c:333
#6  0x00007f4a2cf7eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f4a1eaa7840 (LWP 1253)):
[KCrash Handler]
#6  0x00007f4a28be8af0 in _xend () at ../sysdeps/unix/sysv/linux/x86/elision-unlock.c:33
#7  __lll_unlock_elision (lock=0x7f4a16cf4008, private=128) at ../sysdeps/unix/sysv/linux/x86/elision-unlock.c:29
#8  0x00007f4a2ef8050a in KSharedDataCache::clear() () from /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#9  0x00007f4a2b93e6b6 in KIconLoader::reconfigure(QString const&, QStringList const&) () from /usr/lib/x86_64-linux-gnu/libKF5IconThemes.so.5
#10 0x00007f4a2b93e923 in KIconLoader::newIconLoader() () from /usr/lib/x86_64-linux-gnu/libKF5IconThemes.so.5
#11 0x00007f4a2b93ea0e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5IconThemes.so.5
#12 0x00007f4a2da8d78a in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f4a2b9354ee in ?? () from /usr/lib/x86_64-linux-gnu/libKF5IconThemes.so.5
#14 0x00007f4a2b940aeb in ?? () from /usr/lib/x86_64-linux-gnu/libKF5IconThemes.so.5
#15 0x00007f4a31090d4e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#16 0x00007f4a2da8e651 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f4a2e32ab8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f4a2e330230 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f4a2da5cf1b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f4a2da5f057 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f4a2dab3e73 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f4a2804bff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f4a2804c250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f4a2804c2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f4a2dab427f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f4a2da5a75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f4a2da622cc in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f4a3089f21a in Akonadi::ResourceBase::init(Akonadi::ResourceBase*) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiAgentBase.so.5
#29 0x0000000000413783 in int Akonadi::ResourceBase::init<MaildirResource>(int, char**) ()
#30 0x00007f4a2ce98a40 in __libc_start_main (main=0x413570 <main>, argc=3, argv=0x7ffda15f4758, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffda15f4748) at libc-start.c:289
#31 0x00000000004135a9 in _start ()

Reported using DrKonqi