FYI: Attempt to free unreferenced scalar

I was having some issue after upgrade to perl 5.8.3 in my Fedora Core 1
system. I have read some previous email in the list also mentioned
similar problem.

After some trial and error, the problem seems go away, so I post that in
case it may help with other folks.

The fix is the install DBI again. My guess is some multi-thread related
issues on DBI (which mentioned in the install message) . After install
DBI, I don’t see the “attempt to free” message.