as again I can't log to KDE bugs system I'm pasting crash log here (hopefully helps at least a tad):


Application: Krita (krita), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
81 T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f5d82e8f8c0 (LWP 5031))]

Thread 8 (Thread 0x7f5d5599b700 (LWP 5039)):
#0 0x00007f5d7b297590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f5d7b523976 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQtCore.so.4
#2 0x00007f5d7b51f7ab in QSemaphore::acquire(int) () at /lib64/libQtCore.so.4
#3 0x00007f5d81b4f01e in KisTileDataPooler::waitForWork() (this=0x34a6370) at /home/przemek/kde4/src/calligra/krita/image/tiles3/kis_tile_data_pooler.cc:165
#4 0x00007f5d81b4f43d in KisTileDataPooler::run() (this=0x34a6370) at /home/przemek/kde4/src/calligra/krita/image/tiles3/kis_tile_data_pooler.cc:187
#5 0x00007f5d7b52341f in QThreadPrivate::start(void*) () at /lib64/libQtCore.so.4
#6 0x00007f5d7b29252a in start_thread (arg=0x7f5d5599b700) at pthread_create.c:310
#7 0x00007f5d7a2cb22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f5d49f85700 (LWP 5040)):
#0 0x00007f5d7b297590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f5d7b523976 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQtCore.so.4
#2 0x00007f5d7b51fbe3 in QSemaphore::tryAcquire(int, int) () at /lib64/libQtCore.so.4
#3 0x00007f5d81b69583 in KisTileDataSwapper::waitForWork() (this=<optimized out>) at /home/przemek/kde4/src/calligra/krita/image/tiles3/swap/kis_tile_data_swapper.cpp:86
#4 0x00007f5d81b6980a in KisTileDataSwapper::run() (this=0x34a63b0) at /home/przemek/kde4/src/calligra/krita/image/tiles3/swap/kis_tile_data_swapper.cpp:92
#5 0x00007f5d7b52341f in QThreadPrivate::start(void*) () at /lib64/libQtCore.so.4
#6 0x00007f5d7b29252a in start_thread (arg=0x7f5d49f85700) at pthread_create.c:310
#7 0x00007f5d7a2cb22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f5d49784700 (LWP 5042)):
#0 0x00007f5d7b297590 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f5d7b523976 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQtCore.so.4
#2 0x00007f5d7c554435 in QFileInfoGatherer::run() () at /lib64/libQtGui.so.4
#3 0x00007f5d7b52341f in QThreadPrivate::start(void*) () at /lib64/libQtCore.so.4
#4 0x00007f5d7b29252a in start_thread (arg=0x7f5d49784700) at pthread_create.c:310
#5 0x00007f5d7a2cb22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f5d4b189700 (LWP 5043)):
#0 0x00007f5d7a2bfc8d in poll () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f5d71766b34 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2 0x00007f5d71766c4c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3 0x00007f5d7b65c57e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#4 0x00007f5d7b62bd81 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#5 0x00007f5d7b62c0e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#6 0x00007f5d7b520bb9 in QThread::exec() () at /lib64/libQtCore.so.4
#7 0x00007f5d7b60c6e3 in QInotifyFileSystemWatcherEngine::run() () at /lib64/libQtCore.so.4
#8 0x00007f5d7b52341f in QThreadPrivate::start(void*) () at /lib64/libQtCore.so.4
#9 0x00007f5d7b29252a in start_thread (arg=0x7f5d4b189700) at pthread_create.c:310
#10 0x00007f5d7a2cb22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f5cedebe700 (LWP 5341)):
#0 0x00007f5d7b297939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1 0x00007f5d7b523954 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQtCore.so.4
#2 0x00007f5d7b516cd5 in QThreadPoolThread::run() () at /lib64/libQtCore.so.4
#3 0x00007f5d7b52341f in QThreadPrivate::start(void*) () at /lib64/libQtCore.so.4
#4 0x00007f5d7b29252a in start_thread (arg=0x7f5cedebe700) at pthread_create.c:310
#5 0x00007f5d7a2cb22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f5d1bebf700 (LWP 5342)):
#0 0x00007f5d7b297939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1 0x00007f5d7b523954 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQtCore.so.4
#2 0x00007f5d7b516cd5 in QThreadPoolThread::run() () at /lib64/libQtCore.so.4
#3 0x00007f5d7b52341f in QThreadPrivate::start(void*) () at /lib64/libQtCore.so.4
#4 0x00007f5d7b29252a in start_thread (arg=0x7f5d1bebf700) at pthread_create.c:310
#5 0x00007f5d7a2cb22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f5d077fe700 (LWP 5343)):
#0 0x00007f5d7b297939 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1 0x00007f5d7b523954 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQtCore.so.4
#2 0x00007f5d7b516cd5 in QThreadPoolThread::run() () at /lib64/libQtCore.so.4
#3 0x00007f5d7b52341f in QThreadPrivate::start(void*) () at /lib64/libQtCore.so.4
#4 0x00007f5d7b29252a in start_thread (arg=0x7f5d077fe700) at pthread_create.c:310
#5 0x00007f5d7a2cb22d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f5d82e8f8c0 (LWP 5031)):
[KCrash Handler]
#6 0x00007f5d7a1ff8d7 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7 0x00007f5d7a20153a in __GI_abort () at abort.c:89
#8 0x00007f5d7a242da3 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7f5d7a3522f0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9 0x00007f5d7a24e9f5 in __GI___libc_free (ptr=<optimized out>, str=0x7f5d7a352418 "free(): invalid next size (normal)", action=<optimized out>) at malloc.c:4974
#10 0x00007f5d7a24e9f5 in __GI___libc_free (have_lock=0, p=<optimized out>, av=<optimized out>) at malloc.c:3841
#11 0x00007f5d7a24e9f5 in __GI___libc_free (mem=<optimized out>) at malloc.c:2951
#12 0x00007f5d5d3cb3f8 in pic_write(QIODevice*, QImage const*) () at /usr/lib64/kde4/plugins/imageformats/kimg_pic.so
#13 0x00007f5d5d3cbbd4 in SoftimagePICHandler::write(QImage const&) () at /usr/lib64/kde4/plugins/imageformats/kimg_pic.so
#14 0x00007f5d7c112c8b in QImageWriter::write(QImage const&) () at /lib64/libQtGui.so.4
#15 0x00007f5d7c10055a in QImage::save(QIODevice*, char const*, int) const () at /lib64/libQtGui.so.4
#16 0x00007f5d7c05dc85 in QInternalMimeData::renderDataHelper(QString const&, QMimeData const*) () at /lib64/libQtGui.so.4
#17 0x00007f5d7c0d113b in QX11Data::xdndMimeDataForAtom(unsigned long, QMimeData*, QByteArray*, unsigned long*, int*) () at /lib64/libQtGui.so.4
#18 0x00007f5d7c0cd10c in QClipboard::event(QEvent*) () at /lib64/libQtGui.so.4
#19 0x00007f5d7c049efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQtGui.so.4
#20 0x00007f5d7c050958 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQtGui.so.4
#21 0x00007f5d8277e287 in KisApplication::notify(QObject*, QEvent*) (this=<optimized out>, receiver=0x2351a70, event=0x7ffc90632a70) at /home/przemek/kde4/src/calligra/krita/ui/KisApplication.cpp:543
#22 0x00007f5d7b62d22d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQtCore.so.4
#23 0x00007f5d7c0c54ae in QApplication::x11ProcessEvent(_XEvent*) () at /lib64/libQtGui.so.4
#24 0x00007f5d7c0ecff4 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQtGui.so.4
#25 0x00007f5d717667fb in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#26 0x00007f5d71766b98 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#27 0x00007f5d71766c4c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#28 0x00007f5d7b65c55e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#29 0x00007f5d7c0ed176 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtGui.so.4
#30 0x00007f5d7b62bd81 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#31 0x00007f5d7b62c0e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#32 0x00007f5d7b6317c9 in QCoreApplication::exec() () at /lib64/libQtCore.so.4
#33 0x00000000004029be in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /home/przemek/kde4/src/calligra/krita/main.cc:204