Re: Strange behaviour of swap under 2.4.5-ac15

Andrea Arcangeli
2001-06-18T12:36:23Z

On Mon, Jun 18, 2001 at 12:14:01PM +0200, German Gomez Garcia wrote:
> Hello,
>
> I've running 2.4.5-ac15 for almost a day (22 hours) and I found
> some strange behaviour of the kswap, at least it was not present in
> 2.4.5-ac9. The swap memory increase with time as the cache dedicated
> memory also increase, that is swapping process at a very fast rate, even
> when no program is getting more memory. Is that the expected behaviour?
> An example, with no process running (just the usual daemons and
> none of them getting extra memory) the command:
>
> free ; sleep 60; free
>
> total used free shared buffers cached
> Mem: 513416 393184 120232 364 63276 254576
> -/+ buffers/cache: 75332 438084
> Swap: 530104 14228 515876
>
> total used free shared buffers cached
> Mem: 513416 393192 120224 364 63276 258412
> -/+ buffers/cache: 71504 441912
> Swap: 530104 18064 512040
>
> Any idea?

either apply this patch to 2.4.5ac15:

ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.5aa3/00_fix-unusable-vm-on-alpha-1

(note it is not an alpha specific bug, it's just that I was triggering
all the time on alpha so I called the patch that way)

or better use 2.4.6pre3aa1:

ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.6pre3aa1.bz2

If the problem persists let me know thanks.

Andrea