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Subject: RE: [PATCH] VM fix for 2.4.0-test9 & OOM handler
Date: Mon, 9 Oct 2000 11:07:49 -0700
Message-ID: <32B7FDA9BF4CE64FB10864F5E4972A031DFAD3@cpt-sas-ex01.corptst.amazon.com>
From: "Wagner, Dave" <dwagner@amazon.com>
Sender: owner-linux-mm@kvack.org
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To: mingo@elte.hu, Ed Tomlinson <tomlins@cam.org>
Cc: Mark Hahn <hahn@coffee.psychology.mcmaster.ca>, Marco Colombo <marco@esi.it>, Rik van Riel <riel@conectiva.com.br>, linux-mm@kvack.org
List-ID: <linux-mm.kvack.org>

> -----Original Message-----
> From: Ingo Molnar [mailto:mingo@elte.hu]
> Sent: Monday, October 09, 2000 11:02 AM
> To: Ed Tomlinson
> Cc: Mark Hahn; Marco Colombo; Rik van Riel; linux-mm@kvack.org
> Subject: Re: [PATCH] VM fix for 2.4.0-test9 & OOM handler
> 
> 
> On Mon, 9 Oct 2000, Ed Tomlinson wrote:
> 
> > What about the AIX way?  When the system is nearly OOM it sends a
> > SIG_DANGER signal to all processes.  Those that handle the 
> signal are
> > not initial targets for OOM...  Also in the SIG_DANGER 
> processing they
> > can take there own actions to reduce their memory usage... (we would
> > have to look out for a SIG_DANGER handler that had a memory leak
> > though)
> 
> i think 'importance' should be an integer value, not just a 
> 'can it handle
> SIG_DANGER' flag.
> 
In a perfect world, perhaps.  But how many people/systems are going to
have a well-thought out distribution of "importance" values.  It's
probably too much to have people even set a single boolean value
reasonably.

How about a bit in the executable to say "unimportant".  Netscape, would
of course, have this bit set. ;-)

Dave Wagner
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