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From: Arjan van de Ven <arjanv@redhat.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.4.>=13 VM/kswapd/shmem/Oracle issue (was Re: Google's mm problems)
Date: Thu, 15 Nov 2001 17:48:36 +0000	[thread overview]
Message-ID: <3BF3FFF4.A4768C43@redhat.com> (raw)
In-Reply-To: <E15yhyY-0000Yb-00@starship.berlin> <20011109033851.A15099@asooo.flowerfire.com> <20011115184036.D1381@athlon.random>

Andrea Arcangeli wrote:

> loop that can trigger with the -ac VM when all the ZONE_DMA is
> unfreeable (now fixed in mainline with classzone) have nothing to do

Ok I think I've misunderstood classzone then.
As I understand it, it prevents looping in ZONE_NORMAL when ZONE_DMA has
memory free,
and looping in ZONE_HIGHMEM if ZONE_NORMAL or ZONE_DMA have memory free.
Can you please explain how it also solves the ZONE_DMA problem ? 

Greetings,
   Arjan van de Ven

  reply	other threads:[~2001-11-15 17:50 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-30 23:07 Google's mm problems Daniel Phillips
2001-11-01 20:00 ` Google's mm problems with 2.4.13 and 4G of memory Sven Heinicke
2001-11-02 22:24   ` Daniel Phillips
2001-11-03 20:56 ` Google's mm problems Christian Ehrhardt
2001-11-04  3:29   ` Daniel Phillips
2001-11-05 16:10     ` Sven Heinicke
2001-11-09  9:38 ` 2.4.>=13 VM/kswapd/shmem/Oracle issue (was Re: Google's mm problems) Ken Brownfield
2001-11-09 22:39   ` vda
2001-11-15 17:40   ` Andrea Arcangeli
2001-11-15 17:48     ` Arjan van de Ven [this message]
2001-11-17 15:54       ` Andrea Arcangeli
2001-11-18  6:17         ` Mike Galbraith
2001-11-18  6:27           ` Andrea Arcangeli
2001-11-18  7:14             ` Mike Galbraith
2001-11-15 20:07     ` Ken Brownfield

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