It\'s a single file \"core\" within your root partition? A core dump file is basically a dump of memory when perl fails on executing a particular script... it\'s the output. At least on redhat systems that is always the case, as far as I know.
I have never seen a core file 3 Gigs.... or anywhere even close. I would first say it would be \"safe to remove\"...... but then again I have never seen a 3 GB core file spawned.
:D Perhaps someone else has better experience/knowledge on this particular topic, I would definitely research further if I were you.