Re: Regression bisected to fa3354e4ea39 (mm: free_area_init: use maximal zone PFNs rather than zone sizes)

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On Fri, Jul 30, 2021 at 12:53:58PM -0700, Matt Turner wrote:
> On Tue, Jul 27, 2021 at 1:41 PM Mike Rapoport <rppt@xxxxxxxxxxxxx> wrote:
> > On Tue, Jul 27, 2021 at 12:24:26PM -0700, Matt Turner wrote:
> > >
> > > Thanks, this patch fixes it. With the patch applied, I see
> > >
> > > Zone ranges:
> > >   DMA      [mem 0x0000000000000000-0x00000fffffffdfff]
> > >   Normal   empty
> > > Movable zone start for each node
> > > Early memory node ranges
> > >   node   0: [mem 0x0000000000000000-0x00000001ffffffff]
> > >   node   0: [mem 0x0000000400000000-0x00000005ffffffff]
> > > Initmem setup node 0 [mem 0x0000000000000000-0x00000005ffffffff]
> > >
> > > If you want to send me this patch with your S-o-b I'll take it through
> > > my alpha git tree.
> >
> > The patch is on its way :)
> 
> Thanks a bunch, Mike, for the patch and for all you do!
> 
> > Now I'm really curios how commit e7793e53901b ("arc: update comment about
> > HIGHMEM implementation") will work out.

Oh, sure, I've copied the wrong line from the log :)
 
> You probably mean fdb7d9b7acd0 ("alpha: remove DISCONTIGMEM and
> NUMA"). Works well so far!
> 
> Maybe in some alternative universe where I have infinite free time
> (and my own power plant!) I'll get a second AlphaServer ES47 with the
> enormous "hose" [1] to link the two and I'll poke you for guidance on
> restoring NUMA support :)

Heh, I'm not sure that restoring NUMA on alpha is really good use for free
time even if it were infinite :)
 
-- 
Sincerely yours,
Mike.




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