Application that crashed: kontact
Version of the application: 4.3.1
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-bfs222kwork.10.bfs x86_64
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
Kontact uptime was about 4 days. It crashed after close. I'm using Debian Sid for amd64 platform

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  0x00007fbe5209ea00 in QListData::shared_null () from /usr/lib/libQtCore.so.4
#6  0x00007fbe4f6ca246 in qDeleteAll<QList<KIO::Slave*>::const_iterator> (begin=<value optimized out>, end=...) at /usr/include/qt4/QtCore/qalgorithms.h:350
#7  qDeleteAll<SlaveList> (begin=<value optimized out>, end=...) at /usr/include/qt4/QtCore/qalgorithms.h:358
#8  ~ProtocolInfo (begin=<value optimized out>, end=...) at ../../kio/kio/scheduler.cpp:171
#9  qDeleteAll<QHash<QString, KIO::SchedulerPrivate::ProtocolInfo*>::const_iterator> (begin=<value optimized out>, end=...) at /usr/include/qt4/QtCore/qalgorithms.h:350
#10 0x00007fbe4f6c6053 in qDeleteAll<KIO::SchedulerPrivate::ProtocolInfoDict> () at /usr/include/qt4/QtCore/qalgorithms.h:358
#11 ~SchedulerPrivate () at ../../kio/kio/scheduler.cpp:103
#12 destroy () at ../../kio/kio/scheduler.cpp:209
#13 0x00007fbe50a2043d in *__GI_exit (status=0) at exit.c:75
#14 0x00007fbe50a085cd in __libc_start_main (main=0x403580 <main>, argc=3, ubp_av=0x7fff7fbdd068, init=0x404ad0 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, 
    stack_end=0x7fff7fbdd058) at libc-start.c:254
#15 0x0000000000402f49 in _start () at ../sysdeps/x86_64/elf/start.S:113

This bug may be a duplicate of or related to bug 195896

Reported using DrKonqi