How to trace an AIX Process?

Hello,

I execute an application on my Unix AIX Server and that one crashes after reading some files. These files are very big (80 Mbytes), the application is a CVS Repository.

I have found with a comparaison on a Solaris Server that there are system limitations on my AIX Server in the configuration file /etc/security/limits.
On my Solaris Server it's worked fine, no Problem.

Our AIX guys had put all parameters on the AIX Server(limits) on unlimited.

So I try again but the error is happening again.

So I wanted to trace the process PID when I execute my CVS Command but I don't know the Unix command for tracing in live a Process.
I know nmon or ps but it is not in live.

Could you please help to trace that CVS Process.

Thanks

Bye

Try

truss

truss -o out_file -p PID