Hi,
On Mon, Sep 25, 2000 at 04:16:56PM +0100, Alan Cox wrote:
>
> Unless Im missing something here think about this case
>
> 2 active processes, no swap
>
> #1 #2
> kmalloc 32K kmalloc 16K
> OK OK
> kmalloc 16K kmalloc 32K
> block block
>
... and we get two wakeup_kswapd()s. kswapd has PF_MEMALLOC and so is
able to eat memory which processes #1 and #2 are not allowed to touch.
Progress is made, clean pages are discarded and dirty ones queued for
write, memory becomes free again and the world is a better place.
Or so goes the theory, at least.
--Stephen
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