Application that crashed: kontact
Version of the application: 4.3.3
KDE Version: 4.3.3 (KDE 4.3.3)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-15-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
1) created calendar entry with a fixed time and one attendee (other than myself)
2) When asked if I wnat to send email to attendee(s), clicked on "Send Email"
3) Kontact crashed

Note. If I choose "Do Not Send", Kontact does not crash.

Below is the calendar invite which was created. This is clearly malformed:

BEGIN:VCALENDAR
PRODID:-//K Desktop Environment//NONSGML libkcal 4.3//EN
VERSION:2.0
METHOD:REQUEST
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
TZNAME:BST
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
DTSTART:19730318T020000
RRULE:FREQ=YEARLY;COUNT=8;BYDAY=3SU;BYMONTH=3
END:DAYLIGHT
BEGIN:DAYLIGHT
TZNAME:BST
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
DTSTART:19810329T010000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
BEGIN:DAYLIGHT
TZNAME:BST
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
DTSTART:19160522T020000
RDATE;VALUE=DATE-TIME:19160522T020000
RDATE;VALUE=DATE-TIME:19170409T020000
RDATE;VALUE=DATE-TIME:19180325T020000
RDATE;VALUE=DATE-TIME:19190331T020000
RDATE;VALUE=DATE-TIME:19200329T020000
RDATE;VALUE=DATE-TIME:19210404T020000
RDATE;VALUE=DATE-TIME:19220327T020000
RDATE;VALUE=DATE-TIME:19230423T020000
RDATE;VALUE=DATE-TIME:19240414T020000
RDATE;VALUE=DATE-TIME:19250420T020000
RDATE;VALUE=DATE-TIME:19260419T020000
RDATE;VALUE=DATE-TIME:19270411T020000
RDATE;VALUE=DATE-TIME:19280423T020000
RDATE;VALUE=DATE-TIME:19290422T020000
RDATE;VALUE=DATE-TIME:19300414T020000
RDATE;VALUE=DATE-TIME:19310420T020000
RDATE;VALUE=DATE-TIME:19320418T020000
RDATE;VALUE=DATE-TIME:19330410T020000
RDATE;VALUE=DATE-TIME:19340423T020000
RDATE;VALUE=DATE-TIME:19350415T020000
RDATE;VALUE=DATE-TIME:19360420T020000
RDATE;VALUE=DATE-TIME:19370419T020000
RDATE;VALUE=DATE-TIME:19380411T020000
RDATE;VALUE=DATE-TIME:19390417T020000
RDATE;VALUE=DATE-TIME:19400226T020000
RDATE;VALUE=DATE-TIME:19460415T020000
RDATE;VALUE=DATE-TIME:19470317T020000
RDATE;VALUE=DATE-TIME:19480315T020000
RDATE;VALUE=DATE-TIME:19490404T020000
RDATE;VALUE=DATE-TIME:19500417T020000
RDATE;VALUE=DATE-TIME:19510416T020000
RDATE;VALUE=DATE-TIME:19520421T020000
RDATE;VALUE=DATE-TIME:19530420T020000
RDATE;VALUE=DATE-TIME:19540412T020000
RDATE;VALUE=DATE-TIME:19550418T020000
RDATE;VALUE=DATE-TIME:19560423T020000
RDATE;VALUE=DATE-TIME:19570415T020000
RDATE;VALUE=DATE-TIME:19580421T020000
RDATE;VALUE=DATE-TIME:19590420T020000
RDATE;VALUE=DATE-TIME:19600411T020000
RDATE;VALUE=DATE-TIME:19610327T020000
RDATE;VALUE=DATE-TIME:19620326T020000
RDATE;VALUE=DATE-TIME:19630401T020000
RDATE;VALUE=DATE-TIME:19640323T020000
RDATE;VALUE=DATE-TIME:19650322T020000
RDATE;VALUE=DATE-TIME:19660321T020000
RDATE;VALUE=DATE-TIME:19670320T020000
RDATE;VALUE=DATE-TIME:19680219T020000
RDATE;VALUE=DATE-TIME:19720319T010000
END:DAYLIGHT
BEGIN:STANDARD
TZNAME:GMT
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
DTSTART:19811025T020000
RRULE:FREQ=YEARLY;COUNT=8;BYDAY=4SU;BYMONTH=10
END:STANDARD
BEGIN:STANDARD
TZNAME:GMT
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
DTSTART:19901028T020000
RRULE:FREQ=YEARLY;COUNT=9;BYDAY=4SU;BYMONTH=10
END:STANDARD
BEGIN:STANDARD
TZNAME:GMT
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
DTSTART:19991031T020000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
END:STANDARD
BEGIN:STANDARD
TZNAME:GMT
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
DTSTART:19161002T030000
RDATE;VALUE=DATE-TIME:19161002T030000
RDATE;VALUE=DATE-TIME:19170918T030000
RDATE;VALUE=DATE-TIME:19181001T030000
RDATE;VALUE=DATE-TIME:19190930T030000
RDATE;VALUE=DATE-TIME:19201026T030000
RDATE;VALUE=DATE-TIME:19211004T030000
RDATE;VALUE=DATE-TIME:19221009T030000
RDATE;VALUE=DATE-TIME:19230917T030000
RDATE;VALUE=DATE-TIME:19240922T030000
RDATE;VALUE=DATE-TIME:19251005T030000
RDATE;VALUE=DATE-TIME:19261004T030000
RDATE;VALUE=DATE-TIME:19271003T030000
RDATE;VALUE=DATE-TIME:19281008T030000
RDATE;VALUE=DATE-TIME:19291007T030000
RDATE;VALUE=DATE-TIME:19301006T030000
RDATE;VALUE=DATE-TIME:19311005T030000
RDATE;VALUE=DATE-TIME:19321003T030000


 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  0x00000000 in ?? ()
#7  0x017d981e in qDeleteAll<KIO::SchedulerPrivate::ProtocolInfoDict> () at /usr/include/qt4/QtCore/qalgorithms.h:358
#8  ~SchedulerPrivate () at ../../kio/kio/scheduler.cpp:103
#9  destroy () at ../../kio/kio/scheduler.cpp:209
#10 0x0170d0bb in ~KCleanUpGlobalStatic (this=0x18de5d4, __in_chrg=<value optimized out>) at ../../kdecore/kernel/kglobal.h:62
#11 0x007db05f in ?? () from /lib/tls/i686/cmov/libc.so.6
#12 0x007db0cf in exit () from /lib/tls/i686/cmov/libc.so.6
#13 0x007c2b5e in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#14 0x0804a5e1 in _start () at ../sysdeps/i386/elf/start.S:119

Reported using DrKonqi