Re: [PATCH] 2.5-rmap: VM strict overcommit

Rik van Riel (riel@conectiva.com.br)
Tue, 30 Jul 2002 14:49:39 -0300 (BRT)


On Tue, 30 Jul 2002, Pavel Machek wrote:

> > > In what scenario can "strict overcommit" kill?
> >
> > When the kernel grabs over 50% of RAM. Remember that includes page
> > tables. I've seen the kernel taking 35% of RAM.
>
> But it could happen that kernel would attempt to allocate 101% of RAM
> for page tables, right? At that even "paranoid overcommit" might be OOM,
> right?

Indeed, there are a number of places where memory allocation
by the kernel is pretty much unbound.

IMHO we need to fix those.

regards,

Rik

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