Re: [Xen-devel] comments for c/s 25919 Xen mce

[Christoph Egger <Christoph.Egger@xxxxxxx>]

On 09/24/12 12:24, Liu, Jinsong wrote:

> Christoph Egger wrote:
>> On 09/21/12 08:44, Liu, Jinsong wrote:
>>
>>> Christoph, Keir, Jan
>>>
>>> I have a draft look at c/s 25919. It moves some mce_intel.c logic to
>>> mce.c (and remove old mce.c logic). By draft reviewing the patch I
>>> think it need more work to do, and currently it in fact would hung
>>> at AMD platform (I have no AMD platform to test), i.e,
>>> MACHINE_CHECK_SOFTIRQ --> mce_delayed_action() --> mce_action() -->
>>> ASSERT(handler_num);     
>>>
>>> For AMD mce it may need add (if any misunderstanding please point to
>>> me) 1). add default handler which used at softirq context
>>
>>
>> This is mcee_softirq().
>>
>>> 2). add AMD vmce inject logic
>>
>>
>> Yes, patch is sent.
>> See http://lists.xen.org/archives/html/xen-devel/2012-09/msg01413.html
>>
>>> 3). more test
>>
>>
>> There are more patches in my queue.
>>
>> Christoph
>>
> 
> So, Christoph, considering you have a patches queue and would

> change more mce/vmce, how about wait a moment and then based your
> patches on my vmce patches? My vmce patches have been posted for
> quite some time, and have already been reviewed-rebased-tested
> several rounds. I think they are basically stable now, currently only
> need tools maintainers to have review patch4/5 (live migration tools
> part).

> 
> ... I know I have no right asking you to do so, but we need cooperate

> for mce/vmce, and if you agree I would be very much appreciated. As
> for your mce/vmce patches, I'd like to help test at Intel's platform
> to make sure it works fine.

I don't mind in which order the patches go upstream -
yours first, mine first or somehow interleaved..

It is just important to me that you take my comments (to patch 2/5)
into account to minimize the required rebase-retest effort.

Christoph

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