Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-14-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Running Ubuntu 9.04 w/ Kubuntu backport of KDE 4.3 on a HP 6324 laptop. After opening the laptop, I proceeded to place a network share from my Network listing into the Desktop folder, simple drag and drop. I did one that listed as remote:/ and one that listed as remote:/PorthosSDLs. 

Hovering over remote gives me a list of 3 shares on Porthos (Windows Vista Shared Folders that I added into there earlier) as well as the basic Network, Network Services and Samba Shares options. Hovering over the remote:/PorthosSDLs one does one of 2 things, in both cases a crash follows. It will either show the loading image, which leads to the next one, or go straight to the next one, which is say it is unavailable, does not exist. I've managed to recreate this 3 times so far without fail. PorthosSA and PorthosSB both do the same as well. PorthosSDLs is truthfully under smb://porthos/Seedbox DLs where as SA is Storage A and SB is Storage B. SDLs is also accessible through Storage A/Seedbox DLs

I didnt spot any bugs with the same exact symptoms, though I'm sure they exist. I'm pressed for time, so cant go on a real and true search for it at this second...

Otherwise, KDE 4.3 is actually very very nice, and I'll be keeping it as my main desktop for a while to come. Heck, even my wife likes it 10x more then Gnome. So otherwise, great job, especially considering this is the only problem I've had with KDE 4.3 so far while Gnome would have an issue once every couple of days at least.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3524)]

Thread 2 (Thread 0x7f0394b7a950 (LWP 3526)):
#0  0x00007f03afa832e9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f03b3b86d19 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007f03b2a1081c in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007f03b3b85d35 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f03afa7f3ba in start_thread () from /lib/libpthread.so.0
#5  0x00007f03b0663fcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f03b414b750 (LWP 3524)):
[KCrash Handler]
#5  0x00007f03b1802d5f in QGraphicsScene::drawItems () from /usr/lib/libQtGui.so.4
#6  0x00007f03b18247b8 in QGraphicsView::paintEvent () from /usr/lib/libQtGui.so.4
#7  0x00007f03b128bed6 in QWidget::event () from /usr/lib/libQtGui.so.4
#8  0x00007f03b15fef0b in QFrame::event () from /usr/lib/libQtGui.so.4
#9  0x00007f03b182330b in QGraphicsView::viewportEvent () from /usr/lib/libQtGui.so.4
#10 0x00007f03b3c6e9b8 in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4
#11 0x00007f03b123af1c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#12 0x00007f03b124318a in QApplication::notify () from /usr/lib/libQtGui.so.4
#13 0x00007f03b234d71b in KApplication::notify () from /usr/lib/libkdeui.so.5
#14 0x00007f03b3c6f6ac in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#15 0x00007f03b1293125 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#16 0x00007f03b1293897 in QWidgetPrivate::paintSiblingsRecursive () from /usr/lib/libQtGui.so.4
#17 0x00007f03b1292d97 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#18 0x00007f03b1293897 in QWidgetPrivate::paintSiblingsRecursive () from /usr/lib/libQtGui.so.4
#19 0x00007f03b1292d97 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#20 0x00007f03b140d902 in ?? () from /usr/lib/libQtGui.so.4
#21 0x00007f03b1284e00 in QWidgetPrivate::syncBackingStore () from /usr/lib/libQtGui.so.4
#22 0x00007f03b128bd6d in QWidget::event () from /usr/lib/libQtGui.so.4
#23 0x00007f03b123af4d in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#24 0x00007f03b124318a in QApplication::notify () from /usr/lib/libQtGui.so.4
#25 0x00007f03b234d71b in KApplication::notify () from /usr/lib/libkdeui.so.5
#26 0x00007f03b3c6f6ac in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#27 0x00007f03b3c7031a in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#28 0x00007f03b3c98e03 in ?? () from /usr/lib/libQtCore.so.4
#29 0x00007f03afcce20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0x00007f03afcd18e0 in ?? () from /usr/lib/libglib-2.0.so.0
#31 0x00007f03afcd1a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#32 0x00007f03b3c98a8f in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#33 0x00007f03b12d3bdf in ?? () from /usr/lib/libQtGui.so.4
#34 0x00007f03b3c6df42 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#35 0x00007f03b3c6e314 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#36 0x00007f03b3c705e4 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#37 0x00007f03a7bb31eb in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#38 0x0000000000407215 in _start ()

Reported using DrKonqi