linux-kernel - Re: swap: which is the maximum size allowed?

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Date:	Sun, 28 Jan 2007 18:19:21 -0600
From:	Matt Mackall <mpm@...enic.com>
To:	Eriberto <eriberto@...berto.pro.br>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: swap: which is the maximum size allowed?

On Sun, Jan 28, 2007 at 09:01:34PM -0200, Eriberto wrote:
> Ok. But, mkswap man is old (1999). However, from Linux Partition HOWTO:
> 
> "footnote: "official" max swap size: With kernel 2.4, the limit is 64
> swap spaces at a maximum of 64Gb each, although this is not reflected in
> the man page for mkswap. With the 64 bit opteron on the 2.6 kernel, 128
> swap areas are permitted, each a whopping 16 Tb! (thanks to Peter Chubb
> for the calculation)"
> 
> I want to know: why 64 GB???

It's how big the available pointers are.

-- 
Mathematics is the supreme nostalgia of our time.
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