Re: ZONE_NORMAL exhaustion (dcache slab)

From: Martin J. Bligh (mbligh@aracnet.com)
Date: Tue Oct 22 2002 - 00:49:59 EST


> Oh it's reproduceable OK. Just run
>
> make-teeny-files 7 7

Excellent - thanks for that ... will try it.
 
> Maybe you didn't cat /dev/sda2 for long enough?

Well, it's a multi-gigabyte partition. IIRC, I just ran it until
it died with "input/output error" ... which I assumed at the time
was the end of the partition, but it should be able to find that
without error, so maybe it just ran out of ZONE_NORMAL ;-)
 
> Perhaps we need to multiply the slab cache scanning pressure by the
> slab occupancy. That's simple to do.

That'd make a lot of sense (to me, at least). I presume you mean
occupancy on a per-slab basis, not global.

M.

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