linux-kernel - Re: [PATCH] mips: sgi-ip27: switch from DISCONTIGMEM to SPARSEMEM

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Message-ID: <20190916090705.GA5119@alpha.franken.de>
Date:   Mon, 16 Sep 2019 11:07:05 +0200
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     Paul Burton <paul.burton@...s.com>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, Mike Rapoport <rppt@...ux.ibm.com>
Subject: Re: [PATCH] mips: sgi-ip27: switch from DISCONTIGMEM to SPARSEMEM

On Sat, Sep 14, 2019 at 11:41:13AM +0100, Mike Rapoport wrote:
> On Thu, Sep 12, 2019 at 04:09:12PM +0200, Thomas Bogendoerfer wrote:
> > On Thu, Sep 12, 2019 at 03:55:39PM +0200, Thomas Bogendoerfer wrote:
> > > - reserved[0xd]	[0x000000035bff8000-0x000000035bffffff], 0x0000000000008000 bytes flags: 0x0
> > > 
> > > I have no idea which reservation this is, but it's not from one of the
> > > node data.
> > 
> > that's sparsemem's mem_section. And 
> > 
> >  free_bootmem_with_active_regions(node, end_pfn);
> 
> It seems that the call to free_bootmem_with_active_regions() should have
> been removed along with bootmem and it's not needed now.
> 
> Can you please test the below version of the patch?

Patch is good. I've compared bootlogs and output is the same
regarding memblock/memory debug messages.

When this is merged, I'll have a look into using memblock_alloc
for the node memory.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]