Messages in this thread | | | Date | Wed, 1 Jul 2009 00:50:42 +0900 | Subject | Re: Found the commit that causes the OOMs | From | Minchan Kim <> |
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On Tue, Jun 30, 2009 at 11:05 PM, Wu Fengguang<fengguang.wu@gmail.com> wrote: > > More data: I boot 2.6.30-rc1 with mem=1G and enabled 1GB swap and run msgctl11. > > It goes OOM at the 2nd run. They are very interesting numbers: memory leaked?
Hmm. It's very serious and another problem since this system have swap device and it's not full.
Can you reproduce it easily ?
I want to reproduce it in my system.
Did you ran only msgctl11 not all LTP test ? Just default parameter ? ex) $ ./testcases/bin/msgctl11
2nd run ? You mean you execute msgctl11 two time in order ? I mean after first test is finished successfully and OOM happens second test before ending successfully ?
> [ 2259.825958] msgctl11 invoked oom-killer: gfp_mask=0x84d0, order=0, oom_adj=0 > [ 2259.828092] Pid: 29657, comm: msgctl11 Not tainted 2.6.31-rc1 #22 > [ 2259.830505] Call Trace: > [ 2259.832010] [<ffffffff8156f366>] ? _spin_unlock+0x26/0x30 > [ 2259.834219] [<ffffffff810c8b26>] oom_kill_process+0x176/0x270 > [ 2259.837603] [<ffffffff810c8def>] ? badness+0x18f/0x300 > [ 2259.839906] [<ffffffff810c9095>] __out_of_memory+0x135/0x170 > [ 2259.842035] [<ffffffff810c91c5>] out_of_memory+0xf5/0x180 > [ 2259.844270] [<ffffffff810cd86c>] __alloc_pages_nodemask+0x6ac/0x6c0 > [ 2259.846743] [<ffffffff810f8fa8>] alloc_pages_current+0x78/0x100 > [ 2259.849083] [<ffffffff81033515>] pte_alloc_one+0x15/0x50 > [ 2259.851282] [<ffffffff810e0eda>] __pte_alloc+0x2a/0xf0 > [ 2259.853454] [<ffffffff810e16e2>] handle_mm_fault+0x742/0x830 > [ 2259.855793] [<ffffffff815725cb>] do_page_fault+0x1cb/0x330 > [ 2259.858033] [<ffffffff8156fdf5>] page_fault+0x25/0x30 > [ 2259.860301] Mem-Info: > [ 2259.861706] Node 0 DMA per-cpu: > [ 2259.862523] CPU 0: hi: 0, btch: 1 usd: 0 > [ 2259.864454] CPU 1: hi: 0, btch: 1 usd: 0 > [ 2259.866608] Node 0 DMA32 per-cpu: > [ 2259.867404] CPU 0: hi: 186, btch: 31 usd: 197 > [ 2259.869283] CPU 1: hi: 186, btch: 31 usd: 175 > [ 2259.870511] Active_anon:0 active_file:11 inactive_anon:0 > > zero anon pages! > > [ 2259.870512] inactive_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 > [ 2259.870513] free:1986 slab:42170 mapped:96 pagetables:59427 bounce:0 > [ 2259.877722] Node 0 DMA free:3976kB min:56kB low:68kB high:84kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB present:15164kB pages_scanned:429 all_unreclaimable? no > [ 2259.883804] lowmem_reserve[]: 0 982 982 982 > [ 2259.885814] Node 0 DMA32 free:3968kB min:3980kB low:4972kB high:5968kB active_anon:0kB inactive_anon:0kB active_file:44kB inactive_file:0kB unevictable:0kB present:1005984kB pages_scanned:152 all_unreclaimable? no > [ 2259.890958] lowmem_reserve[]: 0 0 0 0 > [ 2259.893183] Node 0 DMA: 4*4kB 3*8kB 2*16kB 0*32kB 1*64kB 2*128kB 0*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3976kB > [ 2259.897406] Node 0 DMA32: 334*4kB 77*8kB 24*16kB 27*32kB 10*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 3968kB > [ 2259.902753] 625 total pagecache pages > [ 2259.903623] 454 pages in swap cache > [ 2259.905299] Swap cache stats: add 95129, delete 94675, find 55783/67607 > [ 2259.908858] Free swap = 1041232kB > [ 2259.909618] Total swap = 1048568kB > > swap far from full! > > [ 2259.919456] 262144 pages RAM > [ 2259.921071] 12513 pages reserved > [ 2259.922790] 314212 pages shared > [ 2259.923548] 165757 pages non-shared > [ 2259.925234] Out of memory: kill process 20791 (msgctl11) score 2280094 or a child > [ 2259.928982] Killed process 21946 (msgctl11) > >
-- Kinds regards, Minchan Kim -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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