[IRCServices] segmentation fault

[Toxyc]

Helo

Recently the server I use to run ircservices got new hardware, and I
have to reinstall some programs, including irc services. I chose to
upgrade services from 5.0.x to 5.1pre5.
I noticed some odd behaviour when I tried to register a nick, and also
got segmentation fault.
The network consist of two Unreal IRCd (3.2.7) servers, call them A
and B servers.
When I set up server A, I configure the services to connect to it, it
works well. Then I link server A to server B, that's seems to go well
too.

I uploaded the edited ircservices.log here:
http://haxor.hu/~toxyc/ircservices.log.part
What I edited:
- Deleted the old parts of the log, when nothing suspicious happened.
- Deleted the irrelevant messages (user_not_involved_in_any_errors
identifyied, new max user count, registered
user_not_involved_in_any_errors, ...)
- Deleted the ip addresses/hostnames because of the privacy of users.
However, I can provide the full unmodified logfile if needed.

A little explanation for the log:
Sentinel, luther, karmantomi were on server B, when server A with the
services linked to it.

I use AMD K8 Athlon64/Opteron CPU according to lspci.
uname -a output:
Linux dekad.hu 2.6.22-1-k7 #1 SMP Sun Jul 29 15:15:55 UTC 2007 i686 GNU/Linux

I don't have any core dumps, but now i enabled it, and will send it if
services crashes again.
Do you need any other information?

Toxyc