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Date:      Mon, 12 Jul 1999 16:56:23 +0900
From:      "Daniel C. Sobral" <dcs@newsguy.com>
To:        Jon Ribbens <jon@oaktree.co.uk>
Cc:        freebsd-hackers@FreeBSD.ORG, tech-userlevel@netbsd.org, tech@openbsd.org
Subject:   Re: Replacement for grep(1) (part 2)
Message-ID:  <37899FA7.4DC4E088@newsguy.com>
References:  <Pine.GSO.4.10.9907052110250.13873-100000@uther.wam.umd.edu> <xzp7locthir.fsf@flood.ping.uio.no> <xzp1zektgp2.fsf@flood.ping.uio.no> <5laet8b2l8.fsf@assaris.sics.se> <xzpiu7wrx7q.fsf@flood.ping.uio.no> <5lemij265u.fsf@assaris.sics.se> <3788714D.4E666FFA@newsguy.com> <19990712002043.C7067@oaktree.co.uk> <3789373D.9B1811F3@newsguy.com> <19990712022424.A1390@oaktree.co.uk>

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Jon Ribbens wrote:
> 
> Yuck. That's a complete abomination. What's the point of it? It's turning
> an out-of-memory situation from an easily-detected recoverable temporary
> resource shortage which can be worked-around or waited out, into an
> unrecoverable fatal error. Do a significant number of programs really
> request memory which they then proceed not to use?

That's *not* abomination. How about pre-allocating over 100 Mb for X
Free, for instance? Basically, if you don't have enough memory, you
just don't have enough memory. What FreeBSD does *reduces* the need
for memory. If FreeBSD *did not* do it, then you'd need much more
memory.

> > If the system runs out of memory, the biggest process is killed. It
> > might or might not be the one demanding additional memory.
> 
> No, if the *process* hits its *administrative* resource limits.
> i.e. setrlimit(2).

Ah, that's another matter entirely. Then, malloc() returns an error
indeed.

--
Daniel C. Sobral			(8-DCS)
dcs@newsguy.com
dcs@freebsd.org

	I'm one of those bad things that happen to good people.


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