Application: konqueror (4.3.4 (KDE 4.3.4))
KDE Platform Version: 4.3.82 (KDE 4.3.82 (KDE 4.4 >= 20091211)) (Compiled from sources)
Qt Version: 4.7.0
Operating System: Linux 2.6.31-ARCH i686
Distribution (Platform): Archlinux Packages

-- Information about the crash:
I go to a folder in $HOME, then I press back. Only that it's not the back, it's the crash button. har har.

The crash can be reproduced everytime.

 -- Backtrace:
Application: Konqueror (kdeinit4), signal: Aborted
[KCrash Handler]
#6  0xb7796424 in __kernel_vsyscall ()
#7  0xb5db3571 in raise () from /lib/libc.so.6
#8  0xb5db4d72 in abort () from /lib/libc.so.6
#9  0xb5deed95 in __libc_message () from /lib/libc.so.6
#10 0xb5df4c31 in malloc_printerr () from /lib/libc.so.6
#11 0xb5df95a6 in free () from /lib/libc.so.6
#12 0xb5f89681 in operator delete(void*) () from /usr/lib/libstdc++.so.6
#13 0xaf0fcda5 in DolphinCategoryDrawer::~DolphinCategoryDrawer() () from /usr/lib/libdolphinprivate.so.4
#14 0xaf0f2a0c in DolphinIconsView::~DolphinIconsView() () from /usr/lib/libdolphinprivate.so.4
#15 0xb766ca4f in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#16 0xb615d9f7 in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#17 0xaf1015db in DolphinView::~DolphinView() () from /usr/lib/libdolphinprivate.so.4
#18 0xb7214923 in ~Part (this=0x904e990, __vtt_parm=0xaffc21e8, __in_chrg=<value optimized out>) at /home/build/build-i686/kdelibs/src/kdelibs/kparts/part.cpp:208
#19 0xb72150ca in ~ReadOnlyPart (this=0x904e990, __vtt_parm=0xaffc21e4, __in_chrg=<value optimized out>) at /home/build/build-i686/kdelibs/src/kdelibs/kparts/part.cpp:459
#20 0xaffbccbc in DolphinPart::~DolphinPart() () from /usr/lib/kde4/dolphinpart.so
#21 0xb374adb2 in KonqView::switchView(KonqViewFactory&) () from /usr/lib/libkdeinit4_konqueror.so
#22 0xb374d63d in KonqView::changePart(QString const&, QString const&, bool) () from /usr/lib/libkdeinit4_konqueror.so
#23 0xb374d984 in KonqView::restoreHistory() () from /usr/lib/libkdeinit4_konqueror.so
#24 0xb37a2cf8 in KonqMainWindow::slotGoHistoryDelayed() () from /usr/lib/libkdeinit4_konqueror.so
#25 0xb37ab910 in KonqMainWindow::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeinit4_konqueror.so
#26 0xb76621da in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#27 0xb7670cf7 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#28 0xb76788c7 in ?? () from /usr/lib/libQtCore.so.4
#29 0xb76789dc in ?? () from /usr/lib/libQtCore.so.4
#30 0xb766dae4 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#31 0xb60f878c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#32 0xb60ff367 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#33 0xb6c097ea in KApplication::notify (this=0xbffeec8c, receiver=0x90efb58, event=0xbffee890) at /home/build/build-i686/kdelibs/src/kdelibs/kdeui/kernel/kapplication.cpp:302
#34 0xb765cfcb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#35 0xb768c576 in ?? () from /usr/lib/libQtCore.so.4
#36 0xb7689287 in ?? () from /usr/lib/libQtCore.so.4
#37 0xb5ce7378 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#38 0xb5ceabf0 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#39 0xb5cead23 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#40 0xb7688f45 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#41 0xb61b3e25 in ?? () from /usr/lib/libQtGui.so.4
#42 0xb765b609 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#43 0xb765ba5a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#44 0xb765fbcf in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#45 0xb60f8827 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#46 0xb37ddf09 in kdemain () from /usr/lib/libkdeinit4_konqueror.so
#47 0x0804e032 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8c20415 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051173 "0") at /home/build/build-i686/kdelibs/src/kdelibs/kinit/kinit.cpp:705
#48 0x0804eb6d in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at /home/build/build-i686/kdelibs/src/kdelibs/kinit/kinit.cpp:1197
#49 0x0804f004 in handle_requests (waitForPid=<value optimized out>) at /home/build/build-i686/kdelibs/src/kdelibs/kinit/kinit.cpp:1390
#50 0x0804f897 in main (argc=4, argv=0xbffef994, envp=0xbffef9a8) at /home/build/build-i686/kdelibs/src/kdelibs/kinit/kinit.cpp:1825

Reported using DrKonqi