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    SubjectRe: Regression bisected to fa3354e4ea39 (mm: free_area_init: use maximal zone PFNs rather than zone sizes)
    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@linux.ibm.com> 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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