Thanks for checking into this Patrik.
Have you tuned the file-max value on your Debian server according to the
root () dbsrv:~# cat /proc/sys/fs/file-max
I've not been able to reproduce this against my test environment running
in VirtualBox (against which I do most testing).
Just to be perfectly clear, my target is Oracle 10g Express Edition
(XE), running on Ubuntu 9.10 (aka 2.6.31-20-generic #57-Ubuntu SMP Mon
Feb 8 09:05:19 UTC 2010 i686 GNU/Linux), running locally on VMWware
Workstation, and I'm connecting over the usual vmnet interface.
I'm mailing you off-list with results from the debug testing, so as to
avoid spamming the list with attachments.