On 08/04/2015 04:26 PM, gongzhaogang@inspur.com wrote:
> Sorry,I am new.
> >But,
> >1) in cpu_up(), it will try to online a node, and it doesn't check if
> >the node has memory.
> >2) in try_offline_node(), it offlines CPUs first, and then the memory.
> >This behavior looks a little wired, or let's say it is ambiguous. It
> >seems that a NUMA node
> >consists of CPUs and memory. So if the CPUs are online, the node should
> >be online.
> I suggested you to try the patch offered by Liu Jiang.
>
> https://lkml.org/lkml/2014/9/11/1087
>

Well, I think Liu Jiang meant this patch set. :)

https://lkml.org/lkml/2014/7/11/75

> I have tried ,It is OK.
>
> >Unfortunately, since I don't have a machine a with memory-less node, I
> >cannot reproduce
> >the problem right now.
>
> If  not hurried  , I can test your patches in our environment on weekends.
>
Thanks. But this version of my patch set is obviously problematic.
It will be very nice of you if you can help to test the next version.
But maybe in a few days.

Thanks. :)