linux-kernel - Re: [ofa-general] Re: Demand paging for memory regions

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Message-ID: <Pine.LNX.4.64.0802141219110.1041@schroedinger.engr.sgi.com>
Date:	Thu, 14 Feb 2008 12:20:24 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Caitlin Bestler <caitlin.bestler@...il.com>
cc:	Steve Wise <swise@...ngridcomputing.com>,
	Rik van Riel <riel@...hat.com>, steiner@....com,
	Andrea Arcangeli <andrea@...ranet.com>, a.p.zijlstra@...llo.nl,
	izike@...ranet.com, Roland Dreier <rdreier@...co.com>,
	linux-kernel@...r.kernel.org, avi@...ranet.com, linux-mm@...ck.org,
	daniel.blueman@...drics.com, Robin Holt <holt@....com>,
	general@...ts.openfabrics.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	kvm-devel@...ts.sourceforge.net
Subject: Re: [ofa-general] Re: Demand paging for memory regions

On Thu, 14 Feb 2008, Caitlin Bestler wrote:

> So suspend/resume to re-arrange pages is one thing. Suspend/resume to cover
> swapping out pages so they can be reallocated is an exercise in futility. By the
> time you resume the connections will be broken or at the minimum damaged.

The connections would then have to be torn down before swap out and would 
have to be reestablished after the pages have been brought back from swap.
 
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