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From: Michael Ellerman <mpe@ellerman.id.au>
To: Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
	linux-mm@kvack.org, Mel Gorman <mgorman@techsingularity.net>,
	Vlastimil Babka <vbabka@suse.cz>,
	Michal Hocko <mhocko@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	linuxppc-dev@lists.ozlabs.org,
	Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>,
	Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: Dave Hansen <dave.hansen@intel.com>,
	Balbir Singh <bsingharora@gmail.com>
Subject: Re: [PATCH] fadump: Register the memory reserved by fadump
Date: Fri, 05 Aug 2016 17:07:01 +1000	[thread overview]
Message-ID: <87mvkritii.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <1470318165-2521-1-git-send-email-srikar@linux.vnet.ibm.com>

Srikar Dronamraju <srikar@linux.vnet.ibm.com> writes:

> Fadump kernel reserves large chunks of memory even before the pages are
> initialized. This could mean memory that corresponds to several nodes might
> fall in memblock reserved regions.
>
...
> Register the memory reserved by fadump, so that the cache sizes are
> calculated based on the free memory (i.e Total memory - reserved
> memory).

The memory is reserved, with memblock_reserve(). Why is that not sufficient?

cheers

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  parent reply	other threads:[~2016-08-05 16:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-04 13:42 Srikar Dronamraju
2016-08-04 14:09 ` Mel Gorman
2016-08-04 15:27   ` Srikar Dronamraju
2016-08-05  7:07 ` Michael Ellerman [this message]
2016-08-05  7:28   ` Srikar Dronamraju
2016-08-05  9:25     ` Michael Ellerman
2016-08-05 10:06       ` Mel Gorman
2016-08-10  6:02         ` Michael Ellerman
2016-08-10  6:40           ` Srikar Dronamraju
2016-08-10  6:57             ` Michael Ellerman
2016-08-10  9:21               ` Srikar Dronamraju
2016-08-10  7:51           ` Mel Gorman

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