linux-kernel - Re: [patch 1/2] x86, numa: Revert "Fix fakenuma boot failure"

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Message-Id: <20110421144621.7338.A69D9226@jp.fujitsu.com>
Date:	Thu, 21 Apr 2011 14:45:43 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Andreas Herrmann <herrmann.der.user@...glemail.com>,
	linux-kernel@...r.kernel.org, Tejun Heo <tj@...nel.org>,
	x86@...nel.org
Subject: Re: [patch 1/2] x86, numa: Revert "Fix fakenuma boot failure"

> 7d6b46707f24 (x86, NUMA: Fix fakenuma boot failure) could cause physical 
> NUMA topologies to move sibling cpus to a single node when in reality 
> they are in separate domains.  This may result in some nodes being 
> completely void of cpus, which doesn't accurately represent the correct 
> topology.
> 
> This commit was intended as a fix for NUMA emulation, but should not 
> cause a regression for real NUMA machines as a side effect.
> 
> Reported-by: Andreas Herrmann <herrmann.der.user@...glemail.com>
> Signed-off-by: David Rientjes <rientjes@...gle.com>

Acked-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>



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