oninit, thread and session id's

We have oninit processes that sometimes start "running away" eating up gobs of CPU time, io, etc. Which brings the system to it's knees. After tracking down and killing an offending job, the system becomes normal again. Is there any way to find the thread and session id's associated with an oninit process? BTW: we are using sco unix and a couple of version of informix online. thanks in advance! -tom