Troubleshooting a runaway process

I had this cgi-bin shell script that ran just fine under solaris. Now I ported it to linux.

What the cgi-bin does is:

- Parse cgi parameters - call an oracle executable (oracle reports) - take the reports output (a pdf file) and return it to the caller.

If I run the script from the command line, or from cron, (after removing the parse and output bits) it runs just fine, and it completes in under 5 seconds.

If I run the scipt from the cgi-bin, the reports command (rwrun60) never completes and take 100% CPU.

I tried doing an strace of the rwrun60 process but it does not seem to be spinning. It's just kind of hung, but it does take almost 100% of the CPU. Might it be busy waiting ? For what ?

It looks like the rwrun60 commands somewhat "knows" that it is running under cgi-bin and behaves differently in this case (this executable CAN be used by oracle in a cgi-bin, but it's very cumbersome)

Is there a way to launch the rwrun command from the cgi-script with a new set of environment variables, in a kind of "detached" manner, and wait for it in the cgi-bin ? I tried "exec" but it did not work.

Thanks