Application: dolphin (20.12.2)
 (Compiled from sources)
Qt Version: 5.15.2
Frameworks Version: 5.77.0
Operating System: Linux 5.10.19 x86_64
Windowing system: X11
Distribution: Gentoo/Linux

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

It were about 100 images, each 1.4 MB in size - and when I came back I saw the crash window.

-- Backtrace:
Application: Dolphin (dolphin), signal: Aborted

[KCrash Handler]
#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
#5  0x00007f3aadc7e538 in __GI_abort () at abort.c:79
#6  0x00007f3aadcd6506 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f3aadddf3c2 "%s\n") at ../sysdeps/posix/libc_fatal.c:155
#7  0x00007f3aadcddedc in malloc_printerr (str=str@entry=0x7f3aadddd5c4 "free(): invalid size") at malloc.c:5389
#8  0x00007f3aadcdfabc in _int_free (av=<optimized out>, p=0x56316c314fb0, have_lock=0) at malloc.c:4205
#9  0x00007f3aabc1c167 in QHashData::free_helper (this=0x56316c31a440, node_delete=0x7f3aadb93880) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/tools/qhash.cpp:573
#10 0x00007f3aadb962b7 in KFileItemModel::slotClear() () from /usr/lib64/libdolphinprivate.so.5
#11 0x00007f3aabdc7f51 in QtPrivate::QSlotObjectBase::call (a=0x7ffd906ed7d0, r=0x56316b3befc0, this=0x56316b40bd00) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#12 doActivate<false> (sender=0x56316b407b40, signal_index=10, argv=0x7ffd906ed7d0) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qobject.cpp:3886
#13 0x00007f3aad5dfec3 in ?? () from /usr/lib64/libKF5KIOCore.so.5
#14 0x00007f3aad5e489a in ?? () from /usr/lib64/libKF5KIOCore.so.5
#15 0x00007f3aadb95645 in KFileItemModel::refreshDirectory(QUrl const&) () from /usr/lib64/libdolphinprivate.so.5
#16 0x00007f3aadbf552d in DolphinView::loadDirectory(QUrl const&, bool) () from /usr/lib64/libdolphinprivate.so.5
#17 0x00007f3aadbfcddd in DolphinView::reload() () from /usr/lib64/libdolphinprivate.so.5
#18 0x00007f3aade7373d in ?? () from /usr/lib64/libkdeinit5_dolphin.so
#19 0x00007f3aade5dd2e in ?? () from /usr/lib64/libkdeinit5_dolphin.so
#20 0x00007f3aabdc7f51 in QtPrivate::QSlotObjectBase::call (a=0x7ffd906edc30, r=0x56316a1b24e0, this=0x56316a316e00) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#21 doActivate<false> (sender=0x56316a30fd30, signal_index=4, argv=0x7ffd906edc30) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qobject.cpp:3886
#22 0x00007f3aac78ab02 in QAction::triggered(bool) () from /usr/lib64/libQt5Widgets.so.5
#23 0x00007f3aac78d128 in QAction::activate(QAction::ActionEvent) () from /usr/lib64/libQt5Widgets.so.5
#24 0x00007f3aac78da0f in QAction::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#25 0x00007f3aac790d3f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#26 0x00007f3aac799950 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#27 0x00007f3aabd946f7 in QCoreApplication::notifyInternal2 (receiver=0x56316a30fd30, event=0x7ffd906edfa0) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1063
#28 0x00007f3aac1c2232 in QShortcutMap::dispatchEvent(QKeyEvent*) () from /usr/lib64/libQt5Gui.so.5
#29 0x00007f3aac1c28bb in QShortcutMap::tryShortcut(QKeyEvent*) () from /usr/lib64/libQt5Gui.so.5
#30 0x00007f3aac176200 in QWindowSystemInterface::handleShortcutEvent(QWindow*, unsigned long, int, QFlags<Qt::KeyboardModifier>, unsigned int, unsigned int, unsigned int, QString const&, bool, unsigned short) () from /usr/lib64/libQt5Gui.so.5
#31 0x00007f3aac19337d in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () from /usr/lib64/libQt5Gui.so.5
#32 0x00007f3aac19865b in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib64/libQt5Gui.so.5
#33 0x00007f3aac17325b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Gui.so.5
#34 0x00007f3aa6fa886a in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#35 0x00007f3aa9d2adac in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#36 0x00007f3aa9d2b028 in ?? () from /usr/lib64/libglib-2.0.so.0
#37 0x00007f3aa9d2b0bf in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#38 0x00007f3aabde9b00 in QEventDispatcherGlib::processEvents (this=0x56316a1b1310, flags=...) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qeventdispatcher_glib.cpp:423
#39 0x00007f3aabd93543 in QEventLoop::exec (this=this@entry=0x7ffd906ee410, flags=..., flags@entry=...) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/global/qflags.h:69
#40 0x00007f3aabd9b480 in QCoreApplication::exec () at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/global/qflags.h:121
#41 0x00007f3aade5c7dd in kdemain () from /usr/lib64/libkdeinit5_dolphin.so
#42 0x00007f3aadc7fe9b in __libc_start_main (main=0x5631685e0050, argc=2, argv=0x7ffd906ee6e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd906ee6d8) at ../csu/libc-start.c:314
#43 0x00005631685e008a in _start ()
[Inferior 1 (process 25926) detached]

Possible duplicates by query: bug 433551, bug 433526, bug 432783, bug 432575, bug 432483.

Reported using DrKonqi