linux-kernel - Re: [PATCH] x86, UV: initialize BAU MMRs only on hubs with cpus

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Message-ID: <20100717101317.GH12435@elte.hu>
Date:	Sat, 17 Jul 2010 12:13:17 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Cliff Wickman <cpw@....com>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86, UV: initialize BAU MMRs only on hubs with cpus


* Cliff Wickman <cpw@....com> wrote:

> Remove the initialization of MMRs UVH_LB_BAU_SB_ACTIVATION_CONTROL and
> UVH_BAU_DATA_BROADCAST on UV hubs that have no active cpus.
> Such initialization on hubs with no active cpus would result in a kernel
> page fault.

Applied to tip:x86/uv, thanks.

	Ingo
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