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原帖由 JuJu 于 2012-3-26 12:47 发表 
看看log (dmesg command), 应该会有一些信息告诉你系统正在做什么的.
dmesg有如下信息。说得是什么呀?
[~] # dmesg
wmem_reserve[]: 0 0
[6598656.760000] Normal: 8306*4kB 5694*8kB 11*16kB 7*32kB 4*64kB 1*128kB 2*256kB 1*512kB 2*1024kB 0*2048kB 0*4096kB = 82632kB
[6598656.760000] 774 total pagecache pages
[6598656.760000] 34 pages in swap cache
[6598656.760000] Swap cache stats: add 279301336, delete 279301302, find 22407260/59971214
[6598656.760000] Free swap = 298308kB
[6598656.760000] Total swap = 530040kB
[6598656.770000] 65536 pages of RAM
[6598656.770000] 21004 free pages
[6598656.770000] 1621 reserved pages
[6598656.770000] 6521 slab pages
[6598656.770000] 6613 pages shared
[6598656.770000] 34 pages swap cached
[6598656.770000] Out of memory: kill process 10679 (apache) score 15697 or a child
[6598656.770000] Killed process 10679 (apache) vsz:62788kB, anon-rss:0kB, file-rss:368kB
[6601170.230000] smbd invoked oom-killer: gfp_mask=0xd0, order=2, oom_adj=0
[6601170.230000] Backtrace:
[6601170.230000] [<c002ef78>] (dump_backtrace+0x0/0x118) from [<c002f458>] (dump_stack+0x18/0x1c)
[6601170.230000] r7:00003d51 r6:00000002 r5:c1e8c940 r4:00000000
[6601170.230000] [<c002f440>] (dump_stack+0x0/0x1c) from [<c009e24c>] (dump_header+0x48/0x114)
[6601170.230000] [<c009e204>] (dump_header+0x0/0x114) from [<c009e3fc>] (oom_kill_process+0xe4/0xf0)
[6601170.230000] [<c009e318>] (oom_kill_process+0x0/0xf0) from [<c009e720>] (__out_of_memory+0x120/0x198)
[6601170.230000] r7:c181a000 r6:00003d51 r5:c1e8c940 r4:c038860c
[6601170.230000] [<c009e600>] (__out_of_memory+0x0/0x198) from [<c009e7fc>] (out_of_memory+0x64/0xd0)
[6601170.230000] [<c009e798>] (out_of_memory+0x0/0xd0) from [<c00a1538>] (__alloc_pages_nodemask+0x548/0x578)
[6601170.230000] r5:000000d0 r4:00000000
[6601170.230000] [<c00a0ff0>] (__alloc_pages_nodemask+0x0/0x578) from [<c00a1580>] (__get_free_pages+0x18/0x44)
[6601170.230000] [<c00a1568>] (__get_free_pages+0x0/0x44) from [<c0033370>] (get_pgd_slow+0x1c/0xf8)
[6601170.230000] [<c0033354>] (get_pgd_slow+0x0/0xf8) from [<c0063384>] (mm_init+0x9c/0xd4)
[6601170.230000] r9:cf84d640 r8:cc81b080 r7:cf84d640 r6:c03fdfe8 r5:00000000
[6601170.230000] r4:c1ef74e0
[6601170.230000] [<c00632e8>] (mm_init+0x0/0xd4) from [<c0063638>] (dup_mm+0x7c/0x40c)
[6601170.230000] r7:cf84d640 r6:c181a000 r5:cf84d640 r4:00000000
[6601170.230000] [<c00635bc>] (dup_mm+0x0/0x40c) from [<c0064450>] (copy_process+0xa40/0xc54)
[6601170.230000] [<c0063a10>] (copy_process+0x0/0xc54) from [<c00647b4>] (do_fork+0x74/0x314)
[6601170.230000] [<c0064740>] (do_fork+0x0/0x314) from [<c002e75c>] (sys_clone+0x34/0x3c)
[6601170.230000] [<c002e728>] (sys_clone+0x0/0x3c) from [<c002b0c0>] (ret_fast_syscall+0x0/0x28)
[6601170.230000] Mem-info:
[6601170.230000] Normal per-cpu:
[6601170.230000] CPU 0: hi: 90, btch: 15 usd: 0
[6601170.230000] active_anon:14 inactive_anon:31 isolated_anon:64
[6601170.230000] active_file:185 inactive_file:175 isolated_file:32
[6601170.230000] unevictable:551 dirty:0 writeback:2 unstable:0
[6601170.230000] free:20710 slab_reclaimable:1129 slab_unreclaimable:5384
[6601170.230000] mapped:374 shmem:6 pagetables:421 bounce:0
[6601170.230000] Normal free:82840kB min:16384kB low:20480kB high:24576kB active_anon:56kB inactive_anon:124kB active_file:740kB inactive_file:700kB unevictable:2204kB isolated(anon):256kB isolated(file):128kB present:260096kB mlocked:2204kB dirty:0kB writeback:8kB mapped:1496kB shmem:24kB slab_reclaimable:4516kB slab_unreclaimable:21536kB kernel_stack:1360kB pagetables:1684kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[6601170.230000] lowmem_reserve[]: 0 0
[6601170.230000] Normal: 8292*4kB 5697*8kB 26*16kB 7*32kB 4*64kB 1*128kB 2*256kB 1*512kB 2*1024kB 0*2048kB 0*4096kB = 82840kB
[6601170.230000] 824 total pagecache pages
[6601170.230000] 61 pages in swap cache
[6601170.230000] Swap cache stats: add 281322938, delete 281322877, find 22449491/60288905
[6601170.230000] Free swap = 335144kB
[6601170.230000] Total swap = 530040kB
[6601170.240000] 65536 pages of RAM
[6601170.240000] 21065 free pages
[6601170.240000] 1621 reserved pages
[6601170.240000] 6513 slab pages
[6601170.240000] 6410 pages shared
[6601170.240000] 61 pages swap cached
[6601170.240000] Out of memory: kill process 10680 (apache) score 15697 or a child
[6601170.240000] Killed process 10680 (apache) vsz:62788kB, anon-rss:0kB, file-rss:368kB
[6602754.670000] crond invoked oom-killer: gfp_mask=0xd0, order=2, oom_adj=0
[6602754.670000] Backtrace:
[6602754.670000] [<c002ef78>] (dump_backtrace+0x0/0x118) from [<c002f458>] (dump_stack+0x18/0x1c)
[6602754.670000] r7:00003d51 r6:00000002 r5:c1cedc80 r4:00000000
[6602754.670000] [<c002f440>] (dump_stack+0x0/0x1c) from [<c009e24c>] (dump_header+0x48/0x114)
[6602754.670000] [<c009e204>] (dump_header+0x0/0x114) from [<c009e3fc>] (oom_kill_process+0xe4/0xf0)
[6602754.670000] [<c009e318>] (oom_kill_process+0x0/0xf0) from [<c009e720>] (__out_of_memory+0x120/0x198)
[6602754.670000] r7:c1e0e000 r6:00003d51 r5:c1cedc80 r4:c038860c
[6602754.670000] [<c009e600>] (__out_of_memory+0x0/0x198) from [<c009e7fc>] (out_of_memory+0x64/0xd0)
[6602754.670000] [<c009e798>] (out_of_memory+0x0/0xd0) from [<c00a1538>] (__alloc_pages_nodemask+0x548/0x578)
[6602754.670000] r5:000000d0 r4:00000000
[6602754.670000] [<c00a0ff0>] (__alloc_pages_nodemask+0x0/0x578) from [<c00a1580>] (__get_free_pages+0x18/0x44)
[6602754.670000] [<c00a1568>] (__get_free_pages+0x0/0x44) from [<c0033370>] (get_pgd_slow+0x1c/0xf8)
[6602754.670000] [<c0033354>] (get_pgd_slow+0x0/0xf8) from [<c0063384>] (mm_init+0x9c/0xd4)
[6602754.670000] r9:c1e660c0 r8:c1cd63c0 r7:c1e660c0 r6:c03fdfe8 r5:00000000
[6602754.670000] r4:c1cd69c0
[6602754.670000] [<c00632e8>] (mm_init+0x0/0xd4) from [<c0063638>] (dup_mm+0x7c/0x40c)
[6602754.670000] r7:c1e660c0 r6:c1e0e000 r5:c1e660c0 r4:00000000
[6602754.670000] [<c00635bc>] (dup_mm+0x0/0x40c) from [<c0064450>] (copy_process+0xa40/0xc54)
[6602754.670000] [<c0063a10>] (copy_process+0x0/0xc54) from [<c00647b4>] (do_fork+0x74/0x314)
[6602754.670000] [<c0064740>] (do_fork+0x0/0x314) from [<c002e75c>] (sys_clone+0x34/0x3c)
[6602754.670000] [<c002e728>] (sys_clone+0x0/0x3c) from [<c002b0c0>] (ret_fast_syscall+0x0/0x28)
[6602754.670000] Mem-info:
[6602754.670000] Normal per-cpu:
[6602754.670000] CPU 0: hi: 90, btch: 15 usd: 0
[6602754.670000] active_anon:2 inactive_anon:41 isolated_anon:66
[6602754.670000] active_file:316 inactive_file:423 isolated_file:30
[6602754.670000] unevictable:551 dirty:0 writeback:37 unstable:0
[6602754.670000] free:20300 slab_reclaimable:1125 slab_unreclaimable:5380
[6602754.670000] mapped:378 shmem:6 pagetables:464 bounce:0
[6602754.670000] Normal free:81200kB min:16384kB low:20480kB high:24576kB active_anon:8kB inactive_anon:164kB active_file:1264kB inactive_file:1692kB unevictable:2204kB isolated(anon):264kB isolated(file):120kB present:260096kB mlocked:2204kB dirty:0kB writeback:148kB mapped:1512kB shmem:24kB slab_reclaimable:4500kB slab_unreclaimable:21520kB kernel_stack:1392kB pagetables:1856kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[6602754.670000] lowmem_reserve[]: 0 0
[6602754.670000] Normal: 7884*4kB 5696*8kB 26*16kB 7*32kB 4*64kB 1*128kB 2*256kB 1*512kB 2*1024kB 0*2048kB 0*4096kB = 81200kB
[6602754.670000] 1216 total pagecache pages
[6602754.670000] 79 pages in swap cache
[6602754.670000] Swap cache stats: add 282592973, delete 282592894, find 22477390/60485861
[6602754.670000] Free swap = 333356kB
[6602754.670000] Total swap = 530040kB
[6602754.680000] 65536 pages of RAM
[6602754.680000] 20648 free pages
[6602754.680000] 1621 reserved pages
[6602754.680000] 6505 slab pages
[6602754.680000] 6581 pages shared
[6602754.680000] 79 pages swap cached
[6602754.680000] Out of memory: kill process 10697 (apache) score 15697 or a child
[6602754.680000] Killed process 10697 (apache) vsz:62788kB, anon-rss:0kB, file-rss:368kB |
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