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Date:	Tue, 22 Jan 2008 12:57:53 -0200
From:	Arnaldo Carvalho de Melo <>
To:	Theodore Tso <>,,
	David Chinner <>,
	Valerie Henson <>,,,,
	Andreas Dilger <>,
	Ric Wheeler <>,
Subject: Re: [RFC] Parallelize IO for e2fsck

Em Tue, Jan 22, 2008 at 09:40:52AM -0500, Theodore Tso escreveu:
> On Tue, Jan 22, 2008 at 12:00:50AM -0700, Andreas Dilger wrote:
> > > AIX had SIGDANGER some 15 years ago.  Admittedly, that was sent when
> > > the system was about to hit OOM, not when it was about to start swapping.
> > 
> > I'd tried to advocate SIGDANGER some years ago as well, but none of
> > the kernel maintainers were interested.  It definitely makes sense
> > to have some sort of mechanism like this.  At the time I first brought
> > it up it was in conjunction with Netscape using too much cache on some
> > system, but it would be just as useful for all kinds of other memory-
> > hungry applications.
> It's been discussed before, but I suspect the main reason why it was
> never done is no one submitted a patch.  Also, the problem is actually
> a pretty complex one.  There are a couple of different stages where
> you might want to send an alert to processes:

Isn't Marcelo, Riel and some other people working on memory

- Arnaldo
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