On Sat, 25 Nov 2006 13:35:40 -0800
"Martin J. Bligh" <[email protected]> wrote:
> > The traces are a bit confusing, but I don't actually see anything wrong
> > there. The machine has used up all swap, has used up all memory and has
> > correctly gone and killed things. After that, there's free memory again.
>
> Yeah, it's just a bit odd that it's always in the IO path.
It's not. It's in the main pagecache allocation path for reads.
> Makes me
> suspect there's actually a bunch of pagecache in the box as well,
show_free_areas() doesn't appear to dump the information which is needed to
work out how much of that memory is pagecache and how much is swapcache. I
assume it's basically all swapcache.
> but
> maybe it's just coincidence, and the rest of the box really is full
> of anon mem. I thought we dumped the alt-sysrq-m type stuff on an OOM
> kill, but it seems not. maybe that's just not in mainline.
We do. It's sitting there in your logs.
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