linux-kernel - Re: [PATCH/v2] mm/memblock: Properly handle overlaps and fix error path

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Date:	Thu, 10 Mar 2011 07:46:14 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Yinghai Lu <yinghai@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Russell King <linux@....linux.org.uk>,
	David Miller <davem@...emloft.net>, Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH/v2] mm/memblock: Properly handle overlaps and fix error
 path


* Benjamin Herrenschmidt <benh@...nel.crashing.org> wrote:

> On Wed, 2011-03-09 at 12:41 -0800, Yinghai Lu wrote:
> > > Hopefully not damaged with a spurious bit of email header this
> > > time around... sorry about that.
> > 
> > works on my setups...
> > 
> > [    0.000000] Subtract (26 early reservations)
> > [    0.000000]   [000009a000-000009efff]
> > [    0.000000]   [000009f400-00000fffff]
> > [    0.000000]   [0001000000-0003495048]
> > ...
> > before:
> > [    0.000000] Subtract (27 early reservations)
> > [    0.000000]   [000009a000-000009efff]
> > [    0.000000]   [000009f400-00000fffff]
> > [    0.000000]   [00000f85b0-00000f86b3]
> > [    0.000000]   [0001000000-0003495048] 
> 
> Ah interesting, so you did have a case of overlap that wasn't properly
> handled as well.
> 
> If there is no objection, I'll queue that up in powerpc-next for the
> upcoming merge window (soon now).

I think it would be better to do it via -mm, as x86 and other architectures are now 
affected by memblock changes as well.

Thanks,

	Ingo
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