Giovanni,
In your case, a process stack trace may help. On Linux, unless you download and
install pstack from somewhere on the Internet, you can use gdb assuming you
installed that.
gdb `which oracle` [the server process pid]
bt
detach
exit
Type the commands quickly because a debugger attached process is stopped. Once
you get the stack, go to Metalink and look up the few functions near the top
but below the error handlers (usually named like *err* or *dmp*).
Yong Huang
--
http://www.freelists.org/webpage/oracle-l