Anyone know what exit status 256 from rreport means when run from fpcgi?

[Tyler Style]

Hey folks!  I have an error code coming back from rreport to fpcgi... but no
clue what it means.  Can anyone shed some light on it for me?  I'd really
appreciate it!

2010-12-31    06:47:33    DEBUG    PID(00018939)    runcmd.c 000235 Command
/appl/fp/rreport driver -fp ucn_logContact -u -n -sr 41 -rw
/usr/local/apache/htdocs/ajax325 pid(18940) exited within the configured
limit. Status was 256

BTW, it results in no ajax325.htm file being output (in fact, I'm pretty
sure rreport never actually runs at all)

Thanks!
Tyler
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