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SubjectRe: Found the commit that causes the OOMs
Date
Wu Fengguang <fengguang.wu@intel.com> wrote:

> Sorry! This one compiles OK:

Sadly that doesn't seem to work either:

msgctl11 invoked oom-killer: gfp_mask=0x200da, order=0, oom_adj=0
msgctl11 cpuset=/ mems_allowed=0
Pid: 30858, comm: msgctl11 Not tainted 2.6.31-rc1-cachefs #146
Call Trace:
[<ffffffff8107207e>] ? oom_kill_process.clone.0+0xa9/0x245
[<ffffffff81072345>] ? __out_of_memory+0x12b/0x142
[<ffffffff810723c6>] ? out_of_memory+0x6a/0x94
[<ffffffff81074a90>] ? __alloc_pages_nodemask+0x42e/0x51d
[<ffffffff81080843>] ? do_wp_page+0x2c6/0x5f5
[<ffffffff810820c1>] ? handle_mm_fault+0x5dd/0x62f
[<ffffffff81022c32>] ? do_page_fault+0x1f8/0x20d
[<ffffffff812e069f>] ? page_fault+0x1f/0x30
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: 38
CPU 1: hi: 186, btch: 31 usd: 106
Active_anon:75040 active_file:0 inactive_anon:2031
inactive_file:0 unevictable:0 dirty:0 writeback:0 unstable:0
free:1951 slab:41499 mapped:301 pagetables:60674 bounce:0
DMA free:3932kB min:60kB low:72kB high:88kB active_anon:2868kB inactive_anon:384kB active_file:0kB inactive_file:0kB unevictable:0kB present:15364kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 968 968 968
DMA32 free:3872kB min:3948kB low:4932kB high:5920kB active_anon:297292kB inactive_anon:7740kB active_file:0kB inactive_file:0kB unevictable:0kB present:992032kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
DMA: 7*4kB 0*8kB 0*16kB 0*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3932kB
DMA32: 500*4kB 2*8kB 0*16kB 0*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 3872kB
1928 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
238251 pages shared
216210 pages non-shared
Out of memory: kill process 25221 (msgctl11) score 130560 or a child
Killed process 26379 (msgctl11)


Is there any extra debugging I can put in to get more information out of the
OOM?

David


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