linux-kernel - Re: + powerpc-fix-code-for-reserved-memory-spanning-across-nodes.patch added to -mm tree

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Message-ID: <49955716.3070208@in.ibm.com>
Date:	Fri, 13 Feb 2009 16:48:46 +0530
From:	Chandru <chandru@...ibm.com>
To:	Johannes Weiner <hannes@...xchg.org>
CC:	linux-kernel@...r.kernel.org, mm-commits@...r.kernel.org,
	benh@...nel.crashing.org, chandru@...ux.vnet.ibm.com,
	paulus@...ba.org, akpm@...ux-foundation.org
Subject: Re: + powerpc-fix-code-for-reserved-memory-spanning-across-nodes.patch
 added to -mm tree

Johannes Weiner wrote:
>
> This is fine, too.  Subtracting physbase yields a smaller reserve_size
> if not page aligned (bootmem will round it up again, no problem there)
> and at the end of the loop, size is not zero.  This has no practical
> impacts, though, as far as I can see.
>
> The interesting question, however, is whether this patch actually
> fixes the problem you encountered?  If so, I would be glad if we could
> drop the workaround we currently have in -mm.
>
> 	Hannes
>   
Hello Hannes,

Yes, the patch fixes the problem of hitting the BUG_ON()
in bootmem.  Andrew removed the workaround from the
-mm tree.  Thanks to you for running your eyes on this
issue and arriving at an almost workable patch.

thanks,
Chandru
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