Messages in this thread | | | Date | Thu, 13 Dec 2012 09:48:18 +0800 | From | Tang Chen <> | Subject | Re: [PATCH v3 3/5] page_alloc: Introduce zone_movable_limit[] to keep movable limit for nodes |
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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. :)
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? >>> >>> >>> >>> >> > > >
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