From: Christoph Rohland <cr@sap.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: jamagallon@able.es (J . A . Magallon),
R.E.Wolff@BitWizard.nl (Rogier Wolff),
wakko@animx.eu.org (Wakko Warner),
xavier.bestel@free.fr (Xavier Bestel),
goswin.brederlow@student.uni-tuebingen.de (Goswin Brederlow),
fluffy@snurgle.org (William T Wilson),
Matt_Domsch@Dell.com, linux-kernel@vger.kernel.org
Subject: Re: 2.4 and 2GB swap partition limit
Date: 01 May 2001 15:39:42 +0200 [thread overview]
Message-ID: <m3n18xcral.fsf@linux.local> (raw)
In-Reply-To: <E14uI9f-0008Kt-00@the-village.bc.nu>
In-Reply-To: <E14uI9f-0008Kt-00@the-village.bc.nu>
Hi Alan,
On Mon, 30 Apr 2001, Alan Cox wrote:
>> paging in just released 2.4.4, but in previuos kernel, a page that
>> was paged-out, reserves its place in swap even if it is paged-in
>> again, so once you have paged-out all your ram at least once, you
>> can't get any more memory, even if swap is 'empty'.
>
> This is a bug in the 2.4 VM, nothing more or less. It and the
> horrible bounce buffer bugs are forcing large machines to remain on
> 2.2. So it has to get fixed
Yes, it is a bug. and thanks for stating this so clearly.
But a lot of the big servers can go to 2.4. because SYSV shm/shm
fs/tmpfs will reclaim the swap entries on swapin. So big databases and
applications servers which rely on shm are not affected.
Greetings
Christoph
next prev parent reply other threads:[~2001-05-01 13:49 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-02 21:23 2.4 and 2GB swap partition limit Matt_Domsch
2001-03-02 23:52 ` Kenneth Johansson
2001-03-03 6:14 ` William T Wilson
2001-03-03 11:14 ` Rogier Wolff
2001-03-08 13:05 ` Goswin Brederlow
2001-04-27 10:51 ` Xavier Bestel
2001-04-27 11:13 ` Rogier Wolff
2001-04-27 20:52 ` LA Walsh
2001-04-27 21:44 ` Rik van Riel
2001-04-27 22:06 ` Thomas Dodd
2001-04-27 22:40 ` Hugh Dickins
2001-04-27 22:40 ` Rik van Riel
2001-04-29 15:12 ` Ingo Oeser
2001-04-27 22:44 ` LA Walsh
2001-04-28 7:47 ` Rogier Wolff
2001-04-27 22:22 ` Wakko Warner
2001-04-28 13:17 ` Rogier Wolff
2001-04-28 13:37 ` Wakko Warner
2001-04-28 14:11 ` Rogier Wolff
2001-04-28 14:28 ` J . A . Magallon
2001-04-30 18:12 ` Alan Cox
2001-05-01 13:00 ` Stephen C. Tweedie
2001-05-01 16:14 ` Rogier Wolff
2001-05-01 16:35 ` Stephen C. Tweedie
2001-05-02 10:54 ` Rogier Wolff
2001-05-02 11:04 ` Stephen C. Tweedie
2001-05-02 12:49 ` Hugh Dickins
2001-05-02 13:43 ` Stephen C. Tweedie
2001-05-02 0:28 ` Rik van Riel
2001-05-02 0:34 ` David S. Miller
2001-05-02 0:43 ` Rik van Riel
2001-05-02 1:14 ` Roger Larsson
2001-05-02 1:30 ` Rik van Riel
2001-05-01 13:39 ` Christoph Rohland [this message]
2001-05-01 23:25 ` Rik van Riel
2001-04-28 18:04 ` Albert D. Cahalan
2001-04-28 21:23 ` Rogier Wolff
2001-04-29 1:43 ` Jonathan Lundell
2001-04-29 9:17 ` Kenneth Johansson
2001-04-28 18:21 ` David Lang
2001-04-28 21:25 ` Rogier Wolff
2001-04-30 18:14 ` Alan Cox
-- strict thread matches above, loose matches on Subject: below --
2001-03-04 22:04 Matt_Domsch
2001-03-05 8:58 ` Christoph Rohland
2001-03-05 14:30 ` Rik van Riel
2001-03-05 14:36 ` Rik van Riel
2001-03-05 14:52 ` Matti Aarnio
2001-03-05 13:30 ` Christoph Hellwig
2001-03-05 16:53 Andries.Brouwer
2001-04-30 18:45 Torrey Hoffman
2001-04-30 19:04 ` Richard B. Johnson
2001-04-30 19:07 ` David S. Miller
2001-04-30 19:14 ` Richard B. Johnson
2001-04-30 21:04 ` Andreas Ferber
2001-05-02 14:31 ` Andi Kleen
2001-05-02 22:17 ` Andreas Dilger
2001-05-04 8:16 ` Andi Kleen
2001-05-03 14:04 Ishikawa
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