Application that crashed: kmail
Version of the application: 1.12.4
KDE Version: 4.3.5 (KDE 4.3.5) "release 3"
Qt Version: 4.5.3
Operating System: Linux 2.6.31.12-0.2-desktop x86_64
Distribution: "openSUSE 11.2 (x86_64)"

What I was doing when the application crashed:
I was browsing an NNTP server using Dolphin.  It was using 200_MB of memory so I decided to close some other windows.  Bang.

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f3e5f78e7a0 in QListData::shared_null () from /usr/lib64/libQtCore.so.4
#6  0x00007f3e589e88db in qDeleteAll<QList<KIO::Slave*>::const_iterator> (end=<value optimized out>, begin=<value optimized out>) at /usr/include/QtCore/qalgorithms.h:350
#7  qDeleteAll<SlaveList> (end=<value optimized out>, begin=<value optimized out>) at /usr/include/QtCore/qalgorithms.h:358
#8  ~ProtocolInfo (end=<value optimized out>, begin=<value optimized out>) at /usr/src/debug/kdelibs-4.3.5/kio/kio/scheduler.cpp:171
#9  qDeleteAll<QHash<QString, KIO::SchedulerPrivate::ProtocolInfo*>::const_iterator> (end=<value optimized out>, begin=<value optimized out>) at /usr/include/QtCore/qalgorithms.h:350
#10 0x00007f3e589e4ee3 in qDeleteAll<KIO::SchedulerPrivate::ProtocolInfoDict> (c=<value optimized out>) at /usr/include/QtCore/qalgorithms.h:358
#11 ~SchedulerPrivate (c=<value optimized out>) at /usr/src/debug/kdelibs-4.3.5/kio/kio/scheduler.cpp:103
#12 <anonymous struct>::destroy(void) (c=<value optimized out>) at /usr/src/debug/kdelibs-4.3.5/kio/kio/scheduler.cpp:209
#13 0x00007f3e5df80065 in ?? () from /lib64/libc.so.6
#14 0x00007f3e5df800b5 in exit () from /lib64/libc.so.6
#15 0x00007f3e5df69a84 in __libc_start_main () from /lib64/libc.so.6
#16 0x00000000004023d9 in _start () at ../sysdeps/x86_64/elf/start.S:113

This bug may be a duplicate of or related to bug 231865

Reported using DrKonqi