Re: [RFC/PATCH, 2/4] readX_check() performance evaluation

From: Andi Kleen <>
Date: 2004-01-29 06:40:49
On Wed, 28 Jan 2004 11:33:33 -0800 (PST)
Linus Torvalds <> wrote:

> For example, if checking for an error involves actually reading a value 
> from a bridge register, then that implies some _serious_ amount of 
> serialization and external CPU stuff.

Which is _extremly_ hard to do from an MCE handler ...

(currently all our MCE handlers are buggy because they can deadlock on the 
printk lock) 

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Received on Wed Jan 28 14:55:40 2004

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