apache core dump

[whitevamp]

ok the otherday i had an issue with apache not binding to port 80

and i thought i got that taken care of, well maby i have but any way i knoticed that apache wasnt running any more so i when to start it and it whouldnt start so i looked in the error log didnt find anything wrong in there so i looked in messages and i found this 
Dec 31 19:00:04 vampextream kernel: pid 88555 (httpd), uid 80: exited on signal 11 

so now its core dumping .. 
so my quistions are 
1. how do i go about debugging this?
2. and what would be causeing this?

if you need any more information let me know 

vampextream# uname -a
FreeBSD vampextream.com 5.3-RELEASE-p2 FreeBSD 5.3-RELEASE-p2 #3: Wed Dec  8 20:33:13 PST 2004     root at vampextream.com:/usr/obj/usr/src/sys/VAMPEXTREAM  i386
vampextream# httpd -v
Server version: Apache/1.3.33 (Unix)
Server built:   Nov  3 2004 17:24:07
vampextream# 


and all these issue arived after upgradeing apache , well the entire ports collection i have installed.

and thanks inadvance for any help on this issue.