hope this is a good place to send this...
bill@river:~$ ulimit -n
1024
bill@river:~$ ulimit -n 4096 # Goes up once
bill@river:~$ ulimit -n 1024
bill@river:~$ ulimit -n 4096 # Not twice
-bash: ulimit: open files: cannot modify limit: Operation not permitted
bill@brook:~$ ulimit -n
1024
bill@brook:~$ ulimit -n 2048 # Goes up once
bill@brook:~$ ulimit -n
2048
bill@brook:~$ ulimit -n 4096 # Not twice
-su: ulimit: open files: cannot modify limit: Operation not permitted
bill@brook:~$ ulimit -n
2048
tested broken on the following kernels:
3.1.0-1-amd64
3.2.0-0.bpo.1-amd64
3.2.0-0.bpo.2-amd64
3.2.0-0.bpo.3-amd64
3.2.0-2-amd64
working normally on:
2.6.32-5-amd64
3.2.0-3-amd64
thanks
Billy