On Thu, 8 Feb 2007 08:49:41 +0100
Andi Kleen <[email protected]> wrote:
>
> > This panic(hang) was found by a numa test-set on a system with 3 nodes, where
> > node(2) was memory-less-node.
>
> I still think it's the wrong fix -- just get rid of the memory less node.
> I expect you'll likely run into more problems with that setup anyways.
>
memory-less-node problem is a bit big issue for this small bug.
For removing memory-less-node, we'll have to make consensus on
"a node represents a group of memory, not cpu, not devices"
I read old e-mails on node-hotplug again.
In the early stage of node-hotplug, I assumes "a node has memory".
After discussion between several groups, I knew there are people
who consider groups of something as node.
(and we had to change our plan......)
like this (old) homepage's FAQ 5. http://lse.sourceforge.net/numa/faq/
> > static struct mempolicy *mpol_new(int mode, nodemask_t *nodes)
> > {
> > struct mempolicy *policy;
> > + void *val;
>
> Using void * here is nasty when it's a zonelist pointer.
>
okay. changes this to be more neat one..take3 will come.
-Kame
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