Re: 2.6.10: SPARC64 mapped figure goes unsignedly negative...

[Nix <nix@esperi.org.uk>]

On Mon, 31 Jan 2005, Hugh Dickins uttered the following:
> On Mon, 31 Jan 2005, Nix wrote:
>> Filename				Type		Size	Used	Priority
>> /dev/sda2                               partition	523016	0	1
>> /dev/sda4                               partition	511232	57648	2
>> /dev/sdb2                               partition	523016	0	1
>> 
>> Is the problem that the higher-priority kicking out to swap which should
>> happen when memory is tight, won't?
> 
> I had thought that it was any kicking out to swap - apart from kicking
> tmpfs/shmem pages to swap, which should happen independently of Mapped.
> 
> If you're not using tmpfs or shmem, then I'm surprised by that figure.

Oh. Yes, tmpfs might just about explain it:

58320	/tmp

So it looks like I have a swap-free box for a time. I guess I'd better
be careful... :)

> There was 88 kB out to swap in your original /proc/meminfo, which we
> may suppose was before Mapped went negative; but above shows more since.

Yes, I expect so. It must've gone negative really rather early: and note
that it's some distance below 2^64 by now, so it's still falling.  If I
wait for a billion years or so it might wrap around. :)

-- 
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