Message-ID: <419D3271.7050804@argo.co.il>
Date: Fri, 19 Nov 2004 01:38:25 +0200
From: Avi Kivity <avi@argo.co.il>
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To: Horst von Brand <vonbrand@inf.utfsm.cl>
CC: Keith Owens <kaos@ocs.com.au>, Hugh Dickins <hugh@veritas.com>,
       Dave Jones <davej@redhat.com>, Andrew Morton <akpm@osdl.org>,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH] WTF is VLI?
References: <200411181808.iAII8ECH009759@laptop11.inf.utfsm.cl>
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Horst von Brand wrote:

>>ksymoops can disasemble the entire code line, but starting at different 
>>offsets (up to the maximum instruction length) from the start. the first 
>>disassembly to include the program counter in the output would be deemed 
>>correct.
>>    
>>
>
>There might be several... I see no reason to consider the first one
>correct.
>  
>
Of course, there is no way to guarantee correctness. the point is with 
the current system the chances of being correct are around 1:(average 
instruction length) (a bit better because there is a chance to resync), 
while with my proposal to be _incorrect_ you need to start wrong _and_ 
hit a bad resync.

I don't get to see many oopsen, but it seems to me most would have 
garbage before eip, no?

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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