linux-kernel - Re: [PATCH] UV: remove erroneous BAU initialization

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Date:	Fri, 2 Jan 2009 17:27:04 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Cliff Wickman <cpw@....com>
Cc:	linux-kernel@...r.kernel.org, gregkh@...e.de, dcn@....com
Subject: Re: [PATCH] UV: remove erroneous BAU initialization


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

> From: Cliff Wickman <cpw@....com>
> 
> UV is the SGI "UltraViolet" machine, which is x86_64 based.
> BAU is the "Broadcast Assist Unit", used for TLB shootdown in UV.
> 
> This patch removes the allocation and initialization of an unused table.
> 
> This table is left over from a development test mode.  It is unused in
> the present code.
> And it was incorrectly initialized: 8 entries allocated but 17 initialized,
> causing slab corruption.
> 
> This patch should go into 2.6.27 and 2.6.28 as well as the current tree.
> 
> Diffed against 2.6.28 (linux-next, 12/30/08)
> 
> Signed-off-by: Cliff Wickman <cpw@....com>
> ---
>  arch/x86/kernel/tlb_uv.c |    9 ---------
>  1 file changed, 9 deletions(-)

applied to tip/x86/urgent with a Cc: stable tag, thanks Cliff,

	Ingo
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