Kamalesh Babulal wrote:
> Hi Andrew,
>
> I see the oom-killer getting invoked many times on the
> 2.6.23-rc3-mm1 kernel and have attached the complete console
> log and config file.
>
> ========================================================
> cc1 invoked oom-killer: gfp_mask=0x280d2, order=0, oomkilladj=0
>
> [<c0147386>] out_of_memory+0x70/0xf6
>
> [<c01484c4>] <4>cc1 invoked oom-killer: gfp_mask=0x201d2, order=0,
> oomkilladj=0
>
> [<c0147386>] out_of_memory+0x70/0xf6
>
> [<c01484c4>] __alloc_pages+0x21b/0x2a8
>
> [<c0173168>] mntput_no_expire+0x11/0x6e
>
> [<c0149f29>] __do_page_cache_readahead+0xc8/0x13a
>
> [<c014535b>] filemap_nopage+0x164/0x30d
>
> [<c0150c7d>] do_no_page+0x91/0x2fb
>
> [<c0151201>] __handle_mm_fault+0x151/0x2bc
>
> [<c016000f>] do_filp_open+0x25/0x39
>
> [<c0115990>] do_page_fault+0x2a3/0x5f7
>
> [<c01156ed>] do_page_fault+0x0/0x5f7
>
> [<c03336c4>] error_code+0x7c/0x84
>
> [<c0330000>] packet_rcv+0xfd/0x2d7
>
> =======================
>
> DMA per-cpu:
>
> CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1
> usd: 0
>
> CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1
> usd: 0
>
> CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1
> usd: 0
>
> CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1
> usd: 0
>
> Normal per-cpu:
>
> CPU 0: Hot: hi: 186, btch: 31 usd: 67 Cold: hi: 62, btch: 15
> usd: 57
>
> CPU 1: Hot: hi: 186, btch: 31 usd: 170 Cold: hi: 62, btch: 15
> usd: 57
>
> CPU 2: Hot: hi: 186, btch: 31 usd: 126 Cold: hi: 62, btch: 15
> usd: 50
>
> CPU 3: Hot: hi: 186, btch: 31 usd: 50 Cold: hi: 62, btch: 15
> usd: 19
>
> HighMem per-cpu:
>
> CPU 0: Hot: hi: 186, btch: 31 usd: 21 Cold: hi: 62, btch: 15
> usd: 10
>
> CPU 1: Hot: hi: 186, btch: 31 usd: 23 Cold: hi: 62, btch: 15
> usd: 19
>
> CPU 2: Hot: hi: 186, btch: 31 usd: 7 Cold: hi: 62, btch: 15
> usd: 27
>
> CPU 3: Hot: hi: 186, btch: 31 usd: 20 Cold: hi: 62, btch: 15
> usd: 56
>
> Active:228916 inactive:238880 dirty:0 writeback:0 unstable:0
>
Hmm... looks very interesting looks like you have ~1.8 GB (assuming page size
is equal to 4k). The log shows that OOM occurred several times.
Kamalesh, how much memory do you have the on the system and what test were
you running when you hit this problem? Is the problem reproducible? What is
the configured swap size?
--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
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