linux-kernel - Re: [PATCH] mm/alloc: fallback to first node if the wanted node offline

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Date:   Thu, 6 Dec 2018 13:11:52 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     Pingfan Liu <kernelfans@...il.com>
Cc:     Vlastimil Babka <vbabka@...e.cz>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: Re: [PATCH] mm/alloc: fallback to first node if the wanted node
 offline

On Thu 06-12-18 18:44:03, Pingfan Liu wrote:
> On Thu, Dec 6, 2018 at 6:03 PM Pingfan Liu <kernelfans@...il.com> wrote:
[...]
> > Which commit is this patch applied on? I can not apply it on latest linux tree.
> >
> I applied it by manual, will see the test result. I think it should
> work since you instance all the node.
> But there are two things worth to consider:
> -1st. why x86 do not bring up all nodes by default, apparently it will
> be more simple by that way

What do you mean? Why it didn't bring up before? Or do you see some
nodes not being brought up after this patch?

> -2nd. there are other archs, do they obey the rules?

I am afraid that each arch does its own initialization.
-- 
Michal Hocko
SUSE Labs