Re: [PATCH v3] mm/memory_hotplug: Fix try_offline_node()

[Andrew Morton]

On Thu, 7 Nov 2019 00:14:13 +0100 David Hildenbrand <david@xxxxxxxxxx> wrote:

> > +	/*
> > +	 * Especially offline memory blocks might not be spanned by the
> > +	 * node. They will get spanned by the node once they get onlined.
> > +	 * However, they link to the node in sysfs and can get onlined later.
> > +	 */
> > +	rc = for_each_memory_block(&nid, check_no_memblock_for_node_cb);
> > +	if (rc)
> >   		return;
> > -	}
> >   
> >   	if (check_cpu_on_node(pgdat))
> >   		return;
> > 
> 
> @Andrew, can you queued this one instead of v1 so we can give this some 
> more testing? Thanks!

Sure.

We have a tested-by but no reviewed-by or acked-by :(

Null pointer derefs are unpopular.  Should we cc:stable?