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

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Message-ID: <epja0g$5fn$1@sea.gmane.org>
Date:	Sun, 28 Jan 2007 21:01:34 -0200
From:	Eriberto <eriberto@...berto.pro.br>
To:	linux-kernel@...r.kernel.org
Subject:  Re: swap: which is the maximum size allowed?

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???

Thanks,

Eriberto - www.eriberto.pro.br

Bodo Eggert escreveu:
> Look into the manpage of mkswap. It's 2 G x 32 swap partitions,
> minus a tiny overhead.

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