linux-kernel - Re: OOM notifications

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Message-ID: <20071019101743.GA24354@elf.ucw.cz>
Date:	Fri, 19 Oct 2007 12:17:43 +0200
From:	Pavel Machek <pavel@....cz>
To:	Ulrich Drepper <drepper@...hat.com>
Cc:	Rene Herman <rene.herman@...access.nl>,
	Rik van Riel <riel@...hat.com>,
	Marcelo Tosatti <marcelo@...ck.org>,
	linux-kernel@...r.kernel.org
Subject: Re: OOM notifications

On Thu 2007-10-18 15:10:07, Ulrich Drepper wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Rene Herman wrote:
> > That first threshold sounds fine yes. To me, the second mostly sounds
> > like a job for SIGTERM though.
> 
> I agree.  Applications shouldn't be expected to be yet more complicated
> and have different levels of low memory handling.  You might want to
> give a process a second shot at handling SIGDANGER but after that's it's
> all about preparation for a shutdown.

That works okay on a PC, but try cellphone one day.

You want management app to close the least used application. You do
not want _kernel_ to select "who to send SIGTERM to".
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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