Moving this from a downstream bug report:
https://bugzilla.redhat.com/show_bug.cgi?id=828846

After upgrading my workstation from F16 to F17, evolution stopped working.
I have tried to run it from the command line instead of main menu to see the output: 

It tried to migrate my data to the new format (I don't have the exact message, though), complaining that $HOME/.evolution/tasks is not empty, and segfaulting afterwards.

I have removed the directory .evolution/tasks, and after that evolution printed that it tries to migrate the old data, followed by a segfault.

Subsequent runs of evolution just end with "Segmentation fault", so I think the migration has succeeded and the problem is somewhere later.

I am running XFCE session, not GNOME, FWIW.

Version-Release number of selected component (if applicable):
evolution-3.4.1-2.fc17.x86_64

My /etc/localtime is the following:

$ ls -l /etc/localtime
-rw-r--r--. 1 root root 2246 Mar  6  2007 /etc/localtime
$ rpm -qf /etc/localtime
glibc-2.15-37.fc17.x86_64
glibc-2.15-37.fc17.i686
$ sha1sum /etc/localtime
dfe6e078c1c95953796854bc6fc176ed45bd9545  /etc/localtime

I am in the Central-European (CET/CETDST) time zone.

------------------------------------------------------------------------------

In the backtrace:

(gdb) print end
$1 = 1339797600
(gdb) print dtend.value
$2 = (struct icaltimetype *) 0x0
(gdb) print instances_hold
$3 = (struct instances_info *) 0x222fc80
(gdb) print instances_hold->end_zone
$4 = (icaltimezone *) 0x0

Core was generated by `evolution'.
Program terminated with signal 11, Segmentation fault.

+ Trace 230435