Re: [PATCH 4.14 023/159] mm/sparsemem: Allocate mem_section at runtime for CONFIG_SPARSEMEM_EXTREME=y

[Mike Galbraith]

On Sun, 2018-01-07 at 11:18 +0100, Michal Hocko wrote:
> On Sun 07-01-18 10:11:15, Greg KH wrote:
> > On Sun, Jan 07, 2018 at 06:14:22AM +0100, Mike Galbraith wrote:
> > > On Fri, 2017-12-22 at 09:45 +0100, Greg Kroah-Hartman wrote:
> > > > 4.14-stable review patch.  If anyone has any objections, please let me know.
> > > 
> > > FYI, this broke kdump, or rather the makedumpfile part thereof.
> > >  Forward looking wreckage is par for the kdump course, but...
> > 
> > Is it also broken in Linus's tree with this patch?  Or is there an
> > add-on patch that I should apply to 4.14 to resolve this issue there?
> 
> This one http://lkml.kernel.org/r/1513932498-20350-1-git-send-email-bhe@xxxxxxxxxx
> I guess.

That won't unbreak kdump, else master wouldn't be broken.  I don't care
deeply, or know if anyone else does, I'm just reporting it because I
met it and chased it down.

	-Mike