Re: SHM_LOCK under Linux ... do we use this?

On Wed, 17 Aug 2005, Tom Lane wrote:

> "Marc G. Fournier" <scrappy@postgresql.org> writes:
>>      A privileged user can prevent or allow swapping of a shared memory
>>      segment with the following cmds:
>>         SHM_LOCK    prevents swapping of a shared memory segment. The user
>>                     must fault in any pages that are required to be present
>>                     after ...
>
>> I've done a grep through the code, to see if its something that we do use, and
>> it doesn't seem to come back with anything ...
>
> No, we don't.  "privileged user" means root, so it's not possible for us
> to set that.

Ya, that's what I was figuring, but figured someone with more Linux 
knowledge might know a 'loophole' we could exploit :)

----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email: scrappy@hub.org           Yahoo!: yscrappy              ICQ: 7615664