Re: [PATCH] remove empty node at boot time

From: Bjorn Helgaas
Date: Mon Jul 10 2006 - 13:01:30 EST


On Sunday 09 July 2006 23:19, KAMEZAWA Hiroyuki wrote:
> Could you try this patch ? (against 2.6.18-rc1)

Your patch does fix it. But I'm worried about removing
empty nodes at boot-time. I want to support the following
scenario:

node 0: 1 enabled CPU, 3 disabled CPUs, no local memory
node 1: 4 disabled CPUs, no local memory
node 2: no CPUs, big interleaved memory across nodes 0 & 1

At run-time, I'd like to be able to enable any or all of the
7 disabled CPUs. If you remove the "empty" node 1 at boot-time,
it sounds like I won't be able to enable its CPUs later.

Bjorn
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