Re: [Xen-devel] [PATCH V3] X86/vMCE: handle broken page with regard to migration

["Liu, Jinsong" <jinsong.liu@xxxxxxxxx>]

Ian Jackson wrote:
> Liu, Jinsong writes ("RE: [Xen-devel] [PATCH V3] X86/vMCE: handle
> broken page with regard to migration"): 
>> No, at last lter, there are 4 points:
>> 1. start last iter
>> 2. get and transfer pfn_type to target
>> 3. copy page to target
>> 4. end last iter
>> 
>> this code monitor whether it has a vmce occur at area from point 2
>> to point 4 (we don't care vmce occur at last iter but before point2) 
> 
> The migration code is rather tangled but perhaps it would be best to
> check for mce after step 3 for each page, and keep a separate list of
> the pages which broke in that pass ?
> 
> Ian.

It indeed checks mce after point 3 for each page, but what's the advantage of 
keeping a separate list?

Thanks,
Jinsong
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