linux-kernel - Re: [RFC][PATCH 2/9] deadlock prevention core

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Message-ID: <44E7BBE5.1040600@tomt.net>
Date:	Sun, 20 Aug 2006 03:33:25 +0200
From:	Andre Tomt <andre@...t.net>
To:	Rik van Riel <riel@...hat.com>
CC:	Andrew Morton <akpm@...l.org>,
	Daniel Phillips <phillips@...gle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	David Miller <davem@...emloft.net>, tgraf@...g.ch,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, Mike Christie <michaelc@...wisc.edu>
Subject: Re: [RFC][PATCH 2/9] deadlock prevention core

Rik van Riel wrote:
> Andrew Morton wrote:
>
>> - We expect that the lots-of-dirty-anon-memory-over-swap-over-network
>>   scenario might still cause deadlocks. 
>>   I assert that this can be solved by putting swap on local disks.  
>> Peter
>>   asserts that this isn't acceptable due to disk unreliability.  I point
>>   out that local disk reliability can be increased via MD, all goes 
>> quiet.
>>
>>   A good exposition which helps us to understand whether and why a
>>   significant proportion of the target user base still wishes to do
>>   swap-over-network would be useful.
>
> You cannot put disks in many models of blade servers.
>
> At all.

Or many thin clients in general. They are used in quite a few schools 
over here, running Linux.
Some of them do in fact have space for disks, but disks adds costs 
(heat, power, replacing failed drives)
-
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