From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Phillips <phillips@google.com>
Subject: Re: [RFC][PATCH 2/9] deadlock prevention core
Date: Wed, 16 Aug 2006 20:58:28 -0700
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Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
	David Miller <davem@davemloft.net>, riel@redhat.com,
	tgraf@suug.ch, linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, Mike Christie <michaelc@cs.wisc.edu>
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To: Andrew Morton <akpm@osdl.org>
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Andrew Morton wrote:
> Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
>>Testcase:
>>
>>Mount an NBD device as sole swap device and mmap > physical RAM, then
>>loop through touching pages only once.
> 
> Fix: don't try to swap over the network.  Yes, there may be some scenarios
> where people have no local storage, but it's reasonable to expect anyone
> who is using Linux as an "enterprise storage platform" to stick a local
> disk on the thing for swap.
> 
> That leaves MAP_SHARED, but mm-tracking-shared-dirty-pages.patch will fix
> that, will it not?

Hi Andrew,

What happened to the case where we just fill memory full of dirty file
pages backed by a remote disk?

Regards,

Daniel