RAC - Low FILE DESCRIPTOR LIMIT

Hello.
We are on RAC on 64 bit RedHat Linux 2.6.9-34 on 10.2.0.2.0 DB with ASM.

I keep getting following message on Alert log of the DB Instances. *"WARNING:Oracle
instance running on a system with low open file descriptor limit. Tune your system to increase this limit to avoid severe performance degradation."* I have db_files parameter set at 1000. I have file descriptor at OS level on 64K.

I do not know why I am getting this message on the alert log. Has any of you got this? What is the work around?

Based on Note 330883.1, I thought we had the bug 4462367 and modified the init.crsd to include ulimit -c unlimited. That has not helped either. My sev 2 TAR [6286597.994] is over a day old, and begging for any response from Oracle.
I hope some of the expert good souls here can throw some light.

Thanks,
Shiva

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