Re: Rationale for RLIMIT_MEMLOCK?

From: Joerg Schilling
Date: Tue Jan 24 2006 - 04:18:14 EST


Arjan van de Ven <arjan@xxxxxxxxxxxxx> wrote:

> On Tue, 2006-01-24 at 10:08 +0100, Joerg Schilling wrote:
> > > the situation is messy; I can see some value in the hack Ted proposed to
> > > just bump the rlimit automatically at an mlockall-done-by-root.. but to
> > > be fair it's a hack :(
> >
> > As all other rlimits are honored even if you are root, it looks not orthogonal
> > to disregard an existing RLIMIT_MEMLOCK rlimit if you are root.
>
> that's another solution; give root a higher rlimit by default for this.
> It's also a bit messy, but a not-unreasonable default behavior.

This would only make sense in case that you bump up the limit for processes
that are suid root and do not lower it in case someone calls seteuid().

Jörg

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