From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx183.postini.com [74.125.245.183]) by kanga.kvack.org (Postfix) with SMTP id 1E3166B0069 for ; Wed, 12 Dec 2012 22:09:40 -0500 (EST) Received: by mail-ie0-f181.google.com with SMTP id 16so3454220iea.12 for ; Wed, 12 Dec 2012 19:09:39 -0800 (PST) Message-ID: <1355368171.1436.1.camel@kernel.cn.ibm.com> Subject: Re: [PATCH v3 3/5] page_alloc: Introduce zone_movable_limit[] to keep movable limit for nodes From: Simon Jeons Date: Wed, 12 Dec 2012 21:09:31 -0600 In-Reply-To: <50C933E2.3070608@cn.fujitsu.com> References: <1355193207-21797-1-git-send-email-tangchen@cn.fujitsu.com> <1355193207-21797-4-git-send-email-tangchen@cn.fujitsu.com> <50C6A36C.5030606@huawei.com> <50C6A93A.50404@cn.fujitsu.com> <1355225313.1919.1.camel@kernel.cn.ibm.com> <50C7D490.60409@huawei.com> <50C849DD.20405@cn.fujitsu.com> <1355304570.1542.0.camel@kernel.cn.ibm.com> <50C85D2D.5030309@cn.fujitsu.com> <1355358485.1508.2.camel@kernel.cn.ibm.com> <50C933E2.3070608@cn.fujitsu.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Tang Chen Cc: Jiang Liu , Jianguo Wu , hpa@zytor.com, akpm@linux-foundation.org, wency@cn.fujitsu.com, laijs@cn.fujitsu.com, linfeng@cn.fujitsu.com, yinghai@kernel.org, isimatu.yasuaki@jp.fujitsu.com, rob@landley.net, kosaki.motohiro@jp.fujitsu.com, minchan.kim@gmail.com, mgorman@suse.de, rientjes@google.com, rusty@rustcorp.com.au, lliubbo@gmail.com, jaegeuk.hanse@gmail.com, tony.luck@intel.com, glommer@parallels.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-doc@vger.kernel.org On Thu, 2012-12-13 at 09:48 +0800, Tang Chen wrote: > On 12/13/2012 08:28 AM, Simon Jeons wrote: > > 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? > > Hi Simon, > > For now, I'm not quite sure what happened. Could you please provide the > output without the movablecore=6.5G option ? > > Seeing from your output, your totalpages=2051391, which is about 8G. But > the memory mapped for your node 0 is obviously not enough. > > When we have high memory, ZONE_MOVABLE is taken from ZONE_HIGH. So the > first line, 8304MB HIGHMEM available is also strange. > > So I think we need more info to find out the problem. :) > [ 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 c0c2cc00, node_mem_map f19c2200 [ 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 menuentry 'Fedora (3.7.0+)' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-7ed9528d-006f-4d9e-93d9-f68b0967ca99' { load_video set gfxpayload=keep insmod gzio insmod part_msdos insmod ext2 set root='hd0,msdos1' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' eba9dfce-d7f1-4b5c-9199-f2abf80e5dc6 else search --no-floppy --fs-uuid --set=root eba9dfce-d7f1-4b5c-9199-f2abf80e5dc6 fi echo 'Loading Fedora (3.7.0+)' linux /vmlinuz-3.7.0+ root=/dev/mapper/vg_kernel-lv_root ro rd.md=0 rd.dm=0 rd.lvm.lv=vg_kernel/lv_root SYSFONT=True KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8 rd.lvm.lv=vg_kernel/lv_swap rhgb quiet echo 'Loading initial ramdisk ...' initrd /initramfs-3.7.0+.img } > Thank. :) > > > > >> > >> 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? > >>> > >>> > >>> > >>> > >> > > > > > > > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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