linux-kernel - Re: [PATCH v3 3/5] page_alloc: Introduce zone_movable

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Message-ID: <1355358485.1508.2.camel@kernel.cn.ibm.com>
Date:	Wed, 12 Dec 2012 18:28:05 -0600
From:	Simon Jeons <simon.jeons@...il.com>
To:	Tang Chen <tangchen@...fujitsu.com>
Cc:	Jiang Liu <jiang.liu@...wei.com>,
	Jianguo Wu <wujianguo@...wei.com>, hpa@...or.com,
	akpm@...ux-foundation.org, wency@...fujitsu.com,
	laijs@...fujitsu.com, linfeng@...fujitsu.com, yinghai@...nel.org,
	isimatu.yasuaki@...fujitsu.com, rob@...dley.net,
	kosaki.motohiro@...fujitsu.com, minchan.kim@...il.com,
	mgorman@...e.de, rientjes@...gle.com, rusty@...tcorp.com.au,
	lliubbo@...il.com, jaegeuk.hanse@...il.com, tony.luck@...el.com,
	glommer@...allels.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH v3 3/5] page_alloc: Introduce zone_movable_limit[] to
 keep movable limit for nodes

On Wed, 2012-12-12 at 18:32 +0800, Tang Chen wrote:
> Hi Simon,
> 
> On 12/12/2012 05:29 PM, Simon Jeons wrote:
> >
> > Thanks for your clarify.
> >
> > Enable PAE on x86 32bit kernel, 8G memory, movablecore=6.5G
> 
> Could you please provide more info ?
> 
> Such as the whole kernel commondline. And did this happen after
> you applied these patches ? What is the output without these
> patches ?

This result is without the patches, I didn't add more kernel
commandline, just movablecore=6.5G, but output as you see is strange, so
what happened? 

> 
> Thanks. :)
> 
> >>
> >> [    0.000000] 8304MB HIGHMEM available.
> >> [    0.000000] 885MB LOWMEM available.
> >> [    0.000000]   mapped low ram: 0 - 375fe000
> >> [    0.000000]   low ram: 0 - 375fe000
> >> [    0.000000] Zone ranges:
> >> [    0.000000]   DMA      [mem 0x00010000-0x00ffffff]
> >> [    0.000000]   Normal   [mem 0x01000000-0x375fdfff]
> >> [    0.000000]   HighMem  [mem 0x375fe000-0x3e5fffff]
> >> [    0.000000] Movable zone start for each node
> >> [    0.000000] Early memory node ranges
> >> [    0.000000]   node   0: [mem 0x00010000-0x0009cfff]
> >> [    0.000000]   node   0: [mem 0x00100000-0x1fffffff]
> >> [    0.000000]   node   0: [mem 0x20200000-0x3fffffff]
> >> [    0.000000]   node   0: [mem 0x40200000-0xb69cbfff]
> >> [    0.000000]   node   0: [mem 0xb6a46000-0xb6a47fff]
> >> [    0.000000]   node   0: [mem 0xb6b1c000-0xb6cfffff]
> >> [    0.000000]   node   0: [mem 0x00000000-0x3e5fffff]
> >> [    0.000000] On node 0 totalpages: 2051391
> >> [    0.000000] free_area_init_node: node 0, pgdat c0c26a80,
> >> node_mem_map
> >> f19de200
> >> [    0.000000]   DMA zone: 32 pages used for memmap
> >> [    0.000000]   DMA zone: 0 pages reserved
> >> [    0.000000]   DMA zone: 3949 pages, LIFO batch:0
> >> [    0.000000]   Normal zone: 1740 pages used for memmap
> >> [    0.000000]   Normal zone: 220466 pages, LIFO batch:31
> >> [    0.000000]   HighMem zone: 16609 pages used for memmap
> >> [    0.000000]   HighMem zone: 1808595 pages, LIFO batch:31
> >
> > Why zone movable disappear?
> >
> >
> >
> >
> 


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