Mongrel server core dump on Sun Solaris

I am running my Mongrel Web Server 1.1.5 on Sun Solaris 10 server with
Apache 2.2 proxy running with single Mongrel instance to handle my RoR
Web Applications request. My RoR web application was developped on
Windows plateform, once I svn my RoR souce codes to Sun Solaris Web
Application server and run the application through web browser. My
Mongrel Web server most time may die and a core dump file was created in
my RoR Web Application directory as showing below:

uname -a

SunOS Test-zone 5.10 Generic_137138-09 i86pc i386 i86pc

pwd

/opt/coolstack/apache2/htdocs/Jtooltest

ls -al

total 78234
drwxr-xr-x 14 root root 512 Apr 6 18:48 .
drwxr-xr-x 9 root root 512 Apr 7 04:55 …
drwxr-xr-x 7 root root 512 Apr 6 18:40 app
-rw-r–r-- 1 root root 153 Apr 6 18:41 Capfile
drwxr-xr-x 5 root root 512 Apr 6 18:41 config
-rw------- 1 root root 39992793 Apr 6 18:48 core
drwxr-xr-x 4 root root 512 Apr 6 18:40 db
drwxr-xr-x 3 root root 512 Apr 6 18:41 doc
drwxr-xr-x 4 root root 512 Apr 6 18:41 lib
-rw-r–r-- 1 root root 610 Apr 6 18:41 .loadpath
drwxr-xr-x 3 root root 512 Apr 6 18:40 log
-rw-r–r-- 1 root root 443 Apr 6 18:41 .project
drwxr-xr-x 6 root root 512 Apr 6 18:41 public
-rw-r–r-- 1 root root 307 Apr 6 18:41 Rakefile
-rw-r–r-- 1 root root 10619 Apr 6 18:41 README
drwxr-xr-x 5 root root 512 Apr 6 18:40 script
drwxr-xr-x 6 root root 512 Apr 6 18:41 .svn
drwxr-xr-x 7 root root 512 Apr 6 18:40 test
drwxr-xr-x 7 root root 512 Apr 6 18:40 tmp
drwxr-xr-x 4 root root 512 Apr 6 18:40 vendor

Can anybody give some help? Thanks in advance.

Kevin

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