ejabberd increased memory needs since erlang update

hi!

i am running a ejabberd on a small-sized system. the ejabberd package 
status is:

jabber:~# dpkg --status ejabberd
Package: ejabberd
Status: install ok installed
Priority: optional
Section: net
Installed-Size: 3224
Maintainer: Torsten Werner <twerner@xxxxxxxxxx>
Architecture: i386
Version: 2.0.5-1.1
Depends: adduser, erlang-nox (>= 1:13.b-dfsg1), erlang-abi-13.a, 
openssl, ucf, debconf (>= 0.5) | debconf-2.0, libc6 (>= 2.3.6-6~), 
libexpat1 (>= 1.95.8), libpam0g (>= 0.99.7.1), libssl0.9.8 (>= 
0.9.8f-5), zlib1g (>= 1:1.1.4)

on July 25th i updated the following packages:

2009-07-25 12:55:16 status installed man-db 2.5.2-4
2009-07-25 12:55:44 status installed dhcp3-common 3.1.1-6+lenny2
2009-07-25 12:56:04 status installed dhcp3-client 3.1.1-6+lenny2
2009-07-25 12:56:48 status installed erlang-base 1:13.b.1-dfsg-4
2009-07-25 12:56:50 status installed erlang-runtime-tools 1:13.b.1-dfsg-4
2009-07-25 12:56:50 status installed erlang-inviso 1:13.b.1-dfsg-4
2009-07-25 12:56:51 status installed erlang-crypto 1:13.b.1-dfsg-4
2009-07-25 12:56:52 status installed erlang-mnesia 1:13.b.1-dfsg-4
2009-07-25 12:56:52 status installed erlang-snmp 1:13.b.1-dfsg-4
2009-07-25 12:56:52 status installed erlang-public-key 1:13.b.1-dfsg-4
2009-07-25 12:56:52 status installed erlang-ssl 1:13.b.1-dfsg-4
2009-07-25 12:56:53 status installed erlang-inets 1:13.b.1-dfsg-4
2009-07-25 12:56:53 status installed erlang-percept 1:13.b.1-dfsg-4
2009-07-25 12:56:53 status installed erlang-syntax-tools 1:13.b.1-dfsg-4
2009-07-25 12:56:53 status installed erlang-xmerl 1:13.b.1-dfsg-4
2009-07-25 12:56:54 status installed erlang-edoc 1:13.b.1-dfsg-4
2009-07-25 12:56:54 status installed erlang-docbuilder 1:13.b.1-dfsg-4
2009-07-25 12:56:55 status installed erlang-corba 1:13.b.1-dfsg-4
2009-07-25 12:56:55 status installed erlang-asn1 1:13.b.1-dfsg-4
2009-07-25 12:56:55 status installed erlang-ssh 1:13.b.1-dfsg-4
2009-07-25 12:56:55 status installed erlang-ic 1:13.b.1-dfsg-4
2009-07-25 12:56:55 status installed erlang-eunit 1:13.b.1-dfsg-4
2009-07-25 12:56:56 status installed erlang-parsetools 1:13.b.1-dfsg-4
2009-07-25 12:56:56 status installed erlang-odbc 1:13.b.1-dfsg-4

since that day i experience a significant increase of ram-usage on that 
machine. ejabberd is the only service running on that box. you can see 
the ram-usage in that munin-stat: 
http://acabyte.ath.cx/~defa/jabber-memory-week.png

question is: anybody having the same problem? and even more important - 
does anyone know the cause for that behaviour or how to fix it?

thank you a lot
defa

BTW: oh hai - happy sysadmin-day!


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