From: Yasunori Goto <y-goto@jp.fujitsu.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: mbligh@google.com, akpm@osdl.org, apw@shadowen.org,
linux-kernel@vger.kernel.org,
Chuck Ebbert <76306.1226@compuserve.com>
Subject: Re: sparsemem panic in 2.6.17-rc5-mm1 and -mm2
Date: Tue, 06 Jun 2006 14:36:14 +0900 [thread overview]
Message-ID: <20060606142347.2AF2.Y-GOTO@jp.fujitsu.com> (raw)
In-Reply-To: <20060606141922.c5fb16ad.kamezawa.hiroyu@jp.fujitsu.com>
> I looked back into 2.6.15, 2.6.16.
> It looks -mm's time of initialization of "total_memory" is not changed from them.
> (yes, Andrew's fix looks sane.)
>
> I'm intersted in the following texts in the log.
> ==
> Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
> Node 0 DMA32: empty
> Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
> Node 0 HighMem: 1*4kB 1*8kB 1*16kB 1*32kB 1*64kB 1*128kB 0*256kB 0*512kB 1*1024kB 2*2048kB 3962*4096kB = 16233724kB
> Node 1 DMA: empty
> Node 1 DMA32: empty
> Node 1 Normal: empty
> Node 1 HighMem: 1*4kB 1*8kB 0*16kB 0*32kB 0*64kB 1*128kB 0*256kB 1*512kB 1*1024kB 0*2048kB 4065*4096kB = 16651916kB
> Node 2 DMA: empty
> Node 2 DMA32: empty
> Node 2 Normal: empty
> Node 2 HighMem: 1*4kB 1*8kB 0*16kB 0*32kB 0*64kB 1*128kB 0*256kB 1*512kB 1*1024kB 0*2048kB 4065*4096kB = 16651916kB
> Node 3 DMA: empty
> Node 3 DMA32: empty
> Node 3 Normal: empty
> Node 3 HighMem: 1*4kB 1*8kB 0*16kB 0*32kB 0*64kB 1*128kB 0*256kB 1*512kB 1*1024kB 0*2048kB 3811*4096kB = 15611532kB
> ==
> Looks 64GB memory. but there are only HIGHMEM, no NORMAL, DMA. so, shrink_zone() worked.
Its log shows there are some memory in DMA and NORMAL just immediately
before that.....
> Active:2 inactive:15 dirty:0 writeback:0 unstable:0 free:16287272 slab:1823 mapped:0 pagetables:0
> Node 0 DMA free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:16384kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
> Node 0 DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
> Node 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:385024kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
It looks like that something wasted all of DMA(16MB) and NORMAL(385MB)
zone suddenly. Hmmm...
Bye.
--
Yasunori Goto
next prev parent reply other threads:[~2006-06-06 5:37 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-06 0:51 sparsemem panic in 2.6.17-rc5-mm1 and -mm2 Martin Bligh
2006-06-06 3:07 ` Andrew Morton
2006-06-06 5:19 ` KAMEZAWA Hiroyuki
2006-06-06 5:36 ` Yasunori Goto [this message]
2006-06-06 7:27 ` Andrew Morton
2006-06-07 0:43 ` KAMEZAWA Hiroyuki
2006-06-07 4:58 ` Andrew Morton
2006-06-07 5:36 ` Rusty Russell
2006-06-07 5:50 ` Andrew Morton
2006-06-07 6:49 ` Rusty Russell
2006-06-07 9:26 ` Andy Whitcroft
2006-06-07 16:29 ` Andrew Morton
2006-06-07 16:35 ` Andrew Morton
2006-06-07 17:50 ` Andy Whitcroft
2006-06-15 12:28 ` [PATCH] zone handle unaligned zone boundaries Andy Whitcroft
2006-06-07 17:22 ` sparsemem panic in 2.6.17-rc5-mm1 and -mm2 Andy Whitcroft
2006-06-06 23:42 ` Andrew Morton
2006-06-07 9:16 ` Mel Gorman
2006-06-07 17:38 ` Andy Whitcroft
2006-06-07 17:41 ` Andy Whitcroft
-- strict thread matches above, loose matches on Subject: below --
2006-06-06 3:50 Chuck Ebbert
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