Re: [PATCH 0/6] mm: make movable onlining suck less

[Reza Arbab]

On Thu, Apr 06, 2017 at 05:41:28PM +0200, Michal Hocko wrote:
> On Thu 06-04-17 10:24:49, Reza Arbab wrote:
> > On Thu, Apr 06, 2017 at 03:08:46PM +0200, Michal Hocko wrote:
> > >OK, so after recent change mostly driven by testing from Reza Arbab
> > >(thanks again) I believe I am getting to a working state finally. All I
> > >currently have is
> > >in git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git tree
> > >attempts/rewrite-mem_hotplug-WIP branch. I will highly appreciate more
> > >testing of course and if there are no new issues found I will repost the
> > >series for the review.
> >
> > Looking good! I can do my add/remove/repeat test and things seem fine.
> >
> > One thing--starting on the second iteration, I am seeing the WARN in
> > free_area_init_node();
> >
> > add_memory
> >  add_memory_resource
> >    hotadd_new_pgdat
> >      free_area_init_node
> > 	WARN_ON(pgdat->nr_zones || pgdat->kswapd_classzone_idx);
>
> Have you tested with my attempts/rewrite-mem_hotplug-WIP mentioned
> elsewhere? Because I suspect that "mm: get rid of zone_is_initialized"
> might cause this.

This was my first time using your git branch instead of applying the 
patches from this thread to v4.11-rc5 myself.

--
Reza Arbab