Version:           3.1.94 (using KDE 3.1.94 (CVS >= 20031206), Gentoo)
Compiler:          gcc version 3.2.3 20030422 (Gentoo Linux 1.4 3.2.3-r3, propolice)
OS:          Linux (i686) release 2.4.20-gentoo-r9

It just crashed away when I closed the window; that's always bad because I don't know how I could reproduce it :-/ I remember that I had the sidebar with my home opened and the preview of a png file in the pane. I also played around with split views in that konq session.

I'll paste the backtrace and try if the Magic Dup Finder finds anything. Seems like it crashs either in the sidebar code or the dir listener stuff. I've got FAM running.

Backtrace:
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...[New Thread 16384 (LWP 10524)]
0x445adf47 in waitpid ()
   from /lib/libpthread.so.0
#0  0x445adf47 in waitpid () from /lib/libpthread.so.0
#1  0x43c3e171 in KCrash::defaultCrashHandler(int) ()
   from /usr/kde/cvs/lib/libkdecore.so.4
#2  0x445acdfa in __pthread_sighandler () from /lib/libpthread.so.0
#3  <signal handler called>
#4  0x442bc780 in QGList::findRef(void*, bool) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#5  0x442bc3e4 in QGList::removeRef(void*) () from /usr/qt/3/lib/libqt-mt.so.3
#6  0x436f78c6 in QPtrList<KDirLister>::removeRef(KDirLister const*) ()
   from /usr/kde/cvs/lib/libkio.so.4
#7  0x436edc12 in KDirListerCache::forgetDirs(KDirLister*, KURL const&, bool)
    () from /usr/kde/cvs/lib/libkio.so.4
#8  0x436edaa8 in KDirListerCache::forgetDirs(KDirLister*) ()
   from /usr/kde/cvs/lib/libkio.so.4
#9  0x436f35fd in KDirLister::~KDirLister() ()
   from /usr/kde/cvs/lib/libkio.so.4
#10 0x44e4a9ef in KonqSidebarDirTreeModule::~KonqSidebarDirTreeModule() ()
   from /usr/kde/cvs/lib/kde3/konq_sidebartree_dirtree.so
#11 0x44e3aece in QPtrList<KonqSidebarTreeModule>::deleteItem(void*) ()
   from /usr/kde/cvs/lib/libkonq_sidebar_tree.so
#12 0x442bc73e in QGList::clear() () from /usr/qt/3/lib/libqt-mt.so.3
#13 0x44e378df in QPtrList<KonqSidebarTreeModule>::clear() ()
   from /usr/kde/cvs/lib/libkonq_sidebar_tree.so
#14 0x44e336f8 in KonqSidebarTree::clearTree() ()
   from /usr/kde/cvs/lib/libkonq_sidebar_tree.so
#15 0x44e335f8 in KonqSidebarTree::~KonqSidebarTree() ()
   from /usr/kde/cvs/lib/libkonq_sidebar_tree.so
#16 0x4404ac48 in QWidget::~QWidget() () from /usr/qt/3/lib/libqt-mt.so.3
#17 0x43a4908f in KDockWidget::~KDockWidget() ()
   from /usr/kde/cvs/lib/libkdeui.so.4
#18 0x43a4cbe8 in KDockManager::~KDockManager() ()
   from /usr/kde/cvs/lib/libkdeui.so.4
#19 0x43a55dfa in KDockArea::~KDockArea() ()
   from /usr/kde/cvs/lib/libkdeui.so.4
#20 0x4404ac48 in QWidget::~QWidget() () from /usr/qt/3/lib/libqt-mt.so.3
#21 0x44d2c55b in Sidebar_Widget::~Sidebar_Widget() ()
   from /usr/kde/cvs/lib/kde3/konq_sidebar.so
#22 0x434cee5d in KParts::Part::~Part() () from /usr/kde/cvs/lib/libkparts.so.2
#23 0x434cf8bc in KParts::ReadOnlyPart::~ReadOnlyPart() ()
   from /usr/kde/cvs/lib/libkparts.so.2
#24 0x44d22609 in KonqSidebar::~KonqSidebar() ()
   from /usr/kde/cvs/lib/kde3/konq_sidebar.so
#25 0x44b26703 in KonqView::~KonqView() ()
   from /usr/kde/cvs/lib/libkdeinit_konqueror.so
#26 0x44b32267 in KonqViewManager::clear() ()
   from /usr/kde/cvs/lib/libkdeinit_konqueror.so
#27 0x44b70e6a in KonqMainWindow::stayPreloaded() ()
   from /usr/kde/cvs/lib/libkdeinit_konqueror.so
#28 0x44b6e78c in KonqMainWindow::queryExit() ()
   from /usr/kde/cvs/lib/libkdeinit_konqueror.so
#29 0x439bb2dd in KMainWindow::closeEvent(QCloseEvent*) ()
   from /usr/kde/cvs/lib/libkdeui.so.4
#30 0x44b6e358 in KonqMainWindow::closeEvent(QCloseEvent*) ()
   from /usr/kde/cvs/lib/libkdeinit_konqueror.so
#31 0x44050661 in QWidget::event(QEvent*) () from /usr/qt/3/lib/libqt-mt.so.3
#32 0x44108862 in QMainWindow::event(QEvent*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#33 0x44b70d69 in KonqMainWindow::event(QEvent*) ()
   from /usr/kde/cvs/lib/libkdeinit_konqueror.so
#34 0x43fc0ec5 in QApplication::internalNotify(QObject*, QEvent*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#35 0x43fc02b5 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#36 0x43bb8c09 in KApplication::notify(QObject*, QEvent*) ()
   from /usr/kde/cvs/lib/libkdecore.so.4
#37 0x44050045 in QWidget::close(bool) () from /usr/qt/3/lib/libqt-mt.so.3
#38 0x43f5b92c in QETWidget::translateCloseEvent(_XEvent const*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#39 0x43f55c99 in QApplication::x11ClientMessage(QWidget*, _XEvent*, bool) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#40 0x43f56cd4 in QApplication::x11ProcessEvent(_XEvent*) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#41 0x43f6ca57 in QEventLoop::processEvents(unsigned) ()
   from /usr/qt/3/lib/libqt-mt.so.3
#42 0x43fd4126 in QEventLoop::enterLoop() () from /usr/qt/3/lib/libqt-mt.so.3
#43 0x43fd3fc8 in QEventLoop::exec() () from /usr/qt/3/lib/libqt-mt.so.3
#44 0x43fc1111 in QApplication::exec() () from /usr/qt/3/lib/libqt-mt.so.3
#45 0x44b17606 in kdemain () from /usr/kde/cvs/lib/libkdeinit_konqueror.so
#46 0x43d388f6 in kdeinitmain () from /usr/kde/cvs/lib/kde3/konqueror.so
#47 0x0804df29 in strcpy ()
#48 0x0804eed3 in strcpy ()
#49 0x0804f48e in strcpy ()
#50 0x08050344 in strcpy ()
#51 0x4470390b in __libc_start_main () from /lib/libc.so.6