From: Andi Kleen <ak@suse.de>
To: Jens Axboe <axboe@suse.de>
Subject: Re: adding swap workarounds oom - was: Re: Out of Memory: Killed process 16498 (java).
Date: Wed, 1 Mar 2006 15:41:50 +0100
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Cc: Andy Chittenden <AChittenden@bluearc.com>,
       Anton Altaparmakov <aia21@cam.ac.uk>, Andrew Morton <akpm@osdl.org>,
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       Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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On Wednesday 01 March 2006 15:34, Jens Axboe wrote:


> > It shouldn't end up with more, only with less.
> 
> Sure yes, but if that 'less' is still more than what the driver can
> handle, then there's a problem.

The driver needs to handle the full list it passed in. It's quite
possible that the iommu layer is unable to merge anything.


This isn't the block layer based merging where we guarantee
to be able to merge in advance - just lazy after the fact merging.

-Andi
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