PANIC!

We are using the Informix-OnLine for the development system. Now, We have some problem with Informix-OnLine ver 7. We are very approciate it if you/somebody can help us to solve or discuss the problem. Our system is as below. Sun SS20 Server(Server 1) Sun SS1000 Server (Server 2) Online 7.1 OnLine 7.1 Solaris 2.4 Solaris 2.4 Network(tcp/ip) Sun SS20 Sun SS20 Solaris 2.3 Solaris 2.3 ESQL/C 6.0 ESQL/C 6.0 <W system> <S system> We have developed two system; <W system> is real-time. It's access to database server 1. <S system> is running a batch processing. It's access to the database also. For database, every batch processing is using record-lock. And the problem is as below. When we running the <W system>, <S system> and multi batch processing, the Informix-OnLine of Server 1 always down. and there are two message always comming out into the online.log. "Possible memory block header corruption." "Panic" The question is: I ) Is that because our system running the multi batch processing and We using record-lock for DB record cause our system down? II) Is that because we use separate database environment cause our system down? Thats all. Thank you!