[Ksummit-2010-discuss] checkpoint-restart: naked patch

Pavel Emelyanov xemul at parallels.com
Thu Nov 18 01:13:05 PST 2010

On 11/17/2010 06:46 PM, Tejun Heo wrote:
> Hello, Serge.
> On 11/17/2010 04:39 PM, Serge E. Hallyn wrote:
>>> I'm sorry but in-kernel CR already looks like a major misdesign to me.
>> By this do you mean the very idea of having CR support in the kernel?
>> Or our design of it in the kernel?
> The former, I'm afraid.

Can you elaborate on this please?

>> Let's go back to July 2008, at the containers mini-summit, where it
>> was unanimously agreed upon that the kernel was the right place
>> (Checkpoint/Resetart [CR] under
>> http://wiki.openvz.org/Containers/Mini-summit_2008_notes ), and that
>> we would start by supporting a single task with no resources.  Was
>> that whole discussion effectively misguided, in your opinion?  Or do
>> you feel that since the first steps outlined in that discussion
>> we've either "gone too far" or strayed in the subsequent design?
> The conclusion doesn't seem like such a good idea, well, at least to
> me for what it's worth.  Conclusions at summits don't carry decisive
> weight.  It'll still have to prove its worthiness for mainline all the
> same and in light of already working userland alternative and the
> expanded area now covered by virtualization, the arguments in this
> thread don't seem too strong.
> Thanks.

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