Date: Wed, 22 Apr 2009 12:16:01 +0200
From: Robert Richter <robert.richter@amd.com>
To: Ingo Molnar <mingo@elte.hu>
CC: Huang Ying <ying.huang@intel.com>, "H. Peter Anvin" <hpa@zytor.com>,
       Thomas Gleixner <tglx@linutronix.de>, Andi Kleen <ak@linux.intel.com>,
       linux-kernel@vger.kernel.org,
       Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Subject: Re: Re-implement MCE log ring buffer as per-CPU ring buffer
Message-ID: <20090422101600.GL3226@erda.amd.com>
References: <1240391484.6842.474.camel@yhuang-dev.sh.intel.com> <20090422092259.GC18226@elte.hu>
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On 22.04.09 11:22:59, Ingo Molnar wrote:
> 
> * Huang Ying <ying.huang@intel.com> wrote:
> 
> > Re-implement MCE log ring buffer as per-CPU ring buffer for better 
> > scalability. Basic design is as follow:
> 
> Before changing anything substantial in the MCE code it would be 
> necessary to clean up and then unify the 32-bit and 64-bit side of 
> the MCE code first. (Which essentially means extending the 
> 64-bit-only code to 32-bit)

You may also want to consider to use the in-kernel ring_buffer api
(include/linux/ring_buffer.h).

-Robert

-- 
Advanced Micro Devices, Inc.
Operating System Research Center
email: robert.richter@amd.com

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