[CentOS] Where to look or command

List,

I've got a process(s) that have been exiting on a signal 11, but not all the time. I suspect it's memory related, and I was wondering, is there any way to tell exactly how much memory a particular process has in use at the point it sigsev's ? I can't sit here and watch top or the system monitor, but thought maybe something might be saved somewhere after the fact. The processes are using at the moment, 1.4gb of memory and no swap. I've not seen swap go active during any of this process run, and the machine has 2 GB memory installed. Rather hard to trace down the exact activity when it happens.

Thanks..