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* Re: swap: which is the maximum size allowed?
       [not found] <7IoP9-5nQ-27@gated-at.bofh.it>
@ 2007-01-28 22:43 ` Bodo Eggert
  2007-01-28 23:01   ` Eriberto
  0 siblings, 1 reply; 4+ messages in thread
From: Bodo Eggert @ 2007-01-28 22:43 UTC (permalink / raw)
  To: Eriberto, linux-kernel

Eriberto <eriberto@eriberto.pro.br> wrote:

> I am trying understand the swap. I would like to know which is the
> maximum swap size on i386. Is 64 MB? If yes, how to know the origin of
> this "magic" number? I don't found it (Internet).

Look into the manpage of mkswap. It's 2 G x 32 swap partitions,
minus a tiny overhead.
-- 
"Whoever said the pen is mightier than the sword obviously never
encountered automatic weapons."
-Gen. Douglas MacArthur
Friß, Spammer: p1xdJqpr@wIueuDz.7eggert.dyndns.org

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: swap: which is the maximum size allowed?
  2007-01-28 22:43 ` swap: which is the maximum size allowed? Bodo Eggert
@ 2007-01-28 23:01   ` Eriberto
  2007-01-29  0:19     ` Matt Mackall
  0 siblings, 1 reply; 4+ messages in thread
From: Eriberto @ 2007-01-28 23:01 UTC (permalink / raw)
  To: linux-kernel

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.


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: swap: which is the maximum size allowed?
  2007-01-28 23:01   ` Eriberto
@ 2007-01-29  0:19     ` Matt Mackall
  0 siblings, 0 replies; 4+ messages in thread
From: Matt Mackall @ 2007-01-29  0:19 UTC (permalink / raw)
  To: Eriberto; +Cc: linux-kernel

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.

^ permalink raw reply	[flat|nested] 4+ messages in thread

* swap: which is the maximum size allowed?
@ 2007-01-28 20:09 Eriberto
  0 siblings, 0 replies; 4+ messages in thread
From: Eriberto @ 2007-01-28 20:09 UTC (permalink / raw)
  To: linux-kernel

Hello,

I am trying understand the swap. I would like to know which is the
maximum swap size on i386. Is 64 MB? If yes, how to know the origin of
this "magic" number? I don't found it (Internet).

Thanks in advance.

Eriberto - Brazil


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2007-01-29  0:32 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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     [not found] <7IoP9-5nQ-27@gated-at.bofh.it>
2007-01-28 22:43 ` swap: which is the maximum size allowed? Bodo Eggert
2007-01-28 23:01   ` Eriberto
2007-01-29  0:19     ` Matt Mackall
2007-01-28 20:09 Eriberto

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