Re: Warning after memory hotplug then online.

[Jonathan Cameron <jonathan.cameron@huawei.com>]

On Mon, 24 Sep 2018 14:42:03 +0200
Oscar Salvador <osalvador@techadventures.net> wrote:

> On Mon, Sep 24, 2018 at 02:39:17PM +0200, Oscar Salvador wrote:
> > On Mon, Sep 24, 2018 at 01:07:01PM +0100, Jonathan Cameron wrote:  
> > > 
> > > Hi All,
> > > 
> > > This is with some additional patches on top of the mm tree to support
> > > arm64 memory hot plug, but this particular issue doesn't (at first glance)
> > > seem to be connected to that.  It's not a recent issue as IIRC I
> > > disabled Kconfig for cgroups when starting to work on this some time ago
> > > as a quick and dirty work around for this.  
> > 
> > Hi Jonathan,
> > 
> > would you mind to describe the steps you are taking?
> > You are adding the memory, and then you online it?  
> 
> I forgot to ask.
> Does this warning only show up with 4.19.0-rc4-mm1-00209-g70dc260f963a, or you can
> trigger it with an older version?
> Do you happen to know the last one that did not trigger that warning?
> 
> Thanks

From memory perhaps 6 months back. Will take a while to backport the patch stack
far enough to try anything old now.

I'll look at this later in the week.

Thanks,

Jonathan