Messages in this thread |  | | | Date | Mon, 29 Jun 2009 09:57:29 -0700 | | From | Andrew Morton <> | | Subject | Re: Found the commit that causes the OOMs |
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On Mon, 29 Jun 2009 13:43:55 +0100 David Howells <dhowells@redhat.com> wrote:
> KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> wrote: > > > David, Can you please try to following patch? it was posted to LKML > > about 1-2 week ago. > > > > Subject "[BUGFIX][PATCH] fix lumpy reclaim lru handiling at > > isolate_lru_pages v2" > > It is already committed, but I ran a test on the latest Linus kernel anyway: > > msgctl11 invoked oom-killer: gfp_mask=0xd0, order=1, oom_adj=0 > msgctl11 cpuset=/ mems_allowed=0 > Pid: 20366, comm: msgctl11 Not tainted 2.6.31-rc1-cachefs #144 > Call Trace: > [<ffffffff810718d2>] ? oom_kill_process.clone.0+0xa9/0x245 > [<ffffffff81071b99>] ? __out_of_memory+0x12b/0x142 > [<ffffffff81071c1a>] ? out_of_memory+0x6a/0x94 > [<ffffffff810742e4>] ? __alloc_pages_nodemask+0x42e/0x51d > [<ffffffff81031416>] ? copy_process+0x95/0x114f > [<ffffffff8107443c>] ? __get_free_pages+0x12/0x4f > [<ffffffff81031439>] ? copy_process+0xb8/0x114f > [<ffffffff8108192e>] ? handle_mm_fault+0x5dd/0x62f > [<ffffffff8103260f>] ? do_fork+0x13f/0x2ba > [<ffffffff81022c22>] ? do_page_fault+0x1f8/0x20d > [<ffffffff8100b0d3>] ? stub_clone+0x13/0x20 > [<ffffffff8100ad6b>] ? system_call_fastpath+0x16/0x1b > Mem-Info: > DMA per-cpu: > CPU 0: hi: 0, btch: 1 usd: 0 > CPU 1: hi: 0, btch: 1 usd: 0 > DMA32 per-cpu: > CPU 0: hi: 186, btch: 31 usd: 159 > CPU 1: hi: 186, btch: 31 usd: 2 > Active_anon:70477 active_file:1 inactive_anon:4514 > inactive_file:7 unevictable:0 dirty:0 writeback:0 unstable:0 > free:1954 slab:42078 mapped:237 pagetables:57791 bounce:0
~170k pages unreclaimable and ~70k pages unaccounted for.
This does not look like a reclaim problem?
> DMA free:3932kB min:60kB low:72kB high:88kB active_anon:236kB inactive_anon:0kB active_file:4kB inactive_file:4kB unevictable:0kB present:15364kB pages_scanned:0 all_unreclaimable? no > lowmem_reserve[]: 0 968 968 968 > DMA32 free:3884kB min:3948kB low:4932kB high:5920kB active_anon:281672kB inactive_anon:18056kB active_file:0kB inactive_file:24kB unevictable:0kB present:992032kB pages_scanned:6 all_unreclaimable? no > lowmem_reserve[]: 0 0 0 0 > DMA: 180*4kB 36*8kB 3*16kB 0*32kB 1*64kB 0*128kB 1*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 3936kB > DMA32: 491*4kB 0*8kB 0*16kB 0*32kB 0*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 3884kB > 1808 total pagecache pages > 0 pages in swap cache > Swap cache stats: add 0, delete 0, find 0/0 > Free swap = 0kB > Total swap = 0kB > 255744 pages RAM > 5589 pages reserved > 249340 pages shared > 219039 pages non-shared > Out of memory: kill process 11471 (msgctl11) score 112393 or a child > Killed process 12318 (msgctl11)
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