搬家后经常宕机的问题，请大家看看日志。

lostye

之前是一天几次宕机，2分钟自动恢复，貌似是内存耗尽了，我看日志，发现是有个自动更新的程序数据出问题了，然后我就把这个程序和数据库都清空了，之后好多，但是每天还是会偶尔单机一次，下面mysql的错误日志：

1. 121203 23:20:53 mysqld_safe Number of processes running now: 0
   
2. 121203 23:20:54 mysqld_safe mysqld restarted
   
3. 121203 23:20:59 [Note] Event Scheduler: Loaded 0 events
   
4. 121203 23:20:59 [Note] /usr/local/mysql/libexec/mysqld: ready for connections.
   
5. Version: '5.1.60-log'  socket: '/tmp/mysql.sock'  port: 3306  Source distribution

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下面是宕机时的部分messages，不是全部，还有两段貌似跟这个是一样的，超过帖子限制字数了。

1. 
   
2. Dec  3 23:20:54 MyVPS4401 kernel: php-cgi invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0
   
3. Dec  3 23:20:54 MyVPS4401 kernel:  [<c0455d5f>] out_of_memory+0x72/0x1a3
   
4. Dec  3 23:20:54 MyVPS4401 kernel:  [<c045737b>] __alloc_pages+0x24e/0x2cf
   
5. Dec  3 23:20:54 MyVPS4401 kernel:  [<c0458693>] __do_page_cache_readahead+0xc8/0x18b
   
6. Dec  3 23:20:54 MyVPS4401 kernel:  [<c04552e3>] filemap_nopage+0x157/0x34c
   
7. Dec  3 23:20:54 MyVPS4401 kernel:  [<c0460d96>] __handle_mm_fault+0x329/0x1487
   
8. Dec  3 23:20:54 MyVPS4401 kernel:  [<c05ba488>] sock_aio_read+0x53/0x61
   
9. Dec  3 23:20:54 MyVPS4401 kernel:  [<c0498f77>] ep_poll_callback+0x56/0x77
   
10. Dec  3 23:20:54 MyVPS4401 kernel:  [<c0622c61>] do_page_fault+0x6c0/0xc23
    
11. Dec  3 23:20:54 MyVPS4401 kernel:  [<c040882d>] do_gettimeofday+0x1da/0x1ef
    
12. Dec  3 23:20:54 MyVPS4401 kernel:  [<c06225a1>] do_page_fault+0x0/0xc23
    
13. Dec  3 23:20:54 MyVPS4401 kernel:  [<c040559b>] error_code+0x2b/0x30
    
14. Dec  3 23:20:54 MyVPS4401 kernel:  =======================
    
15. Dec  3 23:20:54 MyVPS4401 kernel: Mem-info:
    
16. Dec  3 23:20:55 MyVPS4401 kernel: DMA per-cpu:
    
17. Dec  3 23:20:55 MyVPS4401 kernel: cpu 0 hot: high 186, batch 31 used:39
    
18. Dec  3 23:20:55 MyVPS4401 kernel: cpu 0 cold: high 62, batch 15 used:18
    
19. Dec  3 23:20:55 MyVPS4401 kernel: cpu 1 hot: high 186, batch 31 used:28
    
20. Dec  3 23:20:55 MyVPS4401 kernel: cpu 1 cold: high 62, batch 15 used:48
    
21. Dec  3 23:20:55 MyVPS4401 kernel: cpu 2 hot: high 186, batch 31 used:40
    
22. Dec  3 23:20:55 MyVPS4401 kernel: cpu 2 cold: high 62, batch 15 used:59
    
23. Dec  3 23:20:55 MyVPS4401 kernel: DMA32 per-cpu: empty
    
24. Dec  3 23:20:55 MyVPS4401 kernel: Normal per-cpu: empty
    
25. Dec  3 23:20:55 MyVPS4401 kernel: HighMem per-cpu: empty
    
26. Dec  3 23:20:55 MyVPS4401 kernel: Free pages:        2876kB (0kB HighMem)
    
27. Dec  3 23:20:55 MyVPS4401 kernel: Active:81382 inactive:40986 dirty:0 writeback:0 unstable:0 free:719 slab:2437 mapped-file:797 mapped-anon:121641 pagetables:1216
    
28. Dec  3 23:20:55 MyVPS4401 kernel: DMA free:2876kB min:2896kB low:3620kB high:4344kB active:325528kB inactive:163944kB present:524288kB pages_scanned:2207007 all_unreclaimable? yes
    
29. Dec  3 23:20:55 MyVPS4401 kernel: lowmem_reserve[]: 0 0 0 0
    
30. Dec  3 23:20:55 MyVPS4401 kernel: DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
    
31. Dec  3 23:20:55 MyVPS4401 kernel: lowmem_reserve[]: 0 0 0 0
    
32. Dec  3 23:20:55 MyVPS4401 kernel: Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
    
33. Dec  3 23:20:55 MyVPS4401 kernel: lowmem_reserve[]: 0 0 0 0
    
34. Dec  3 23:20:55 MyVPS4401 kernel: HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
    
35. Dec  3 23:20:55 MyVPS4401 kernel: lowmem_reserve[]: 0 0 0 0
    
36. Dec  3 23:20:55 MyVPS4401 kernel: DMA: 53*4kB 7*8kB 3*16kB 8*32kB 12*64kB 2*128kB 1*256kB 0*512kB 1*1024kB 0*2048kB 0*4096kB = 2876kB
    
37. Dec  3 23:20:55 MyVPS4401 kernel: DMA32: empty
    
38. Dec  3 23:20:55 MyVPS4401 kernel: Normal: empty
    
39. Dec  3 23:20:55 MyVPS4401 kernel: HighMem: empty
    
40. Dec  3 23:20:55 MyVPS4401 kernel: 1246 pagecache pages
    
41. Dec  3 23:20:55 MyVPS4401 kernel: Swap cache: add 2026932, delete 2026684, find 272841/549930, race 6+131
    
42. Dec  3 23:20:55 MyVPS4401 kernel: Free swap  = 0kB
    
43. Dec  3 23:20:55 MyVPS4401 kernel: Total swap = 262136kB
    
44. Dec  3 23:20:55 MyVPS4401 kernel: Free swap:            0kB
    
45. Dec  3 23:20:55 MyVPS4401 kernel: 131072 pages of RAM
    
46. Dec  3 23:20:55 MyVPS4401 kernel: 0 pages of HIGHMEM
    
47. Dec  3 23:20:55 MyVPS4401 kernel: 2602 reserved pages
    
48. Dec  3 23:20:55 MyVPS4401 kernel: 10171 pages shared
    
49. Dec  3 23:20:55 MyVPS4401 kernel: 248 pages swap cached
    
50. Dec  3 23:20:55 MyVPS4401 kernel: 0 pages dirty
    
51. Dec  3 23:20:55 MyVPS4401 kernel: 0 pages writeback
    
52. Dec  3 23:20:55 MyVPS4401 kernel: 797 pages mapped
    
53. Dec  3 23:20:55 MyVPS4401 kernel: 2437 pages slab
    
54. Dec  3 23:20:55 MyVPS4401 kernel: 1216 pages pagetables
    
55. Dec  3 23:20:55 MyVPS4401 kernel: Out of memory: Killed process 26204, UID 500, (mysqld).
    

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uoin

还以为是教学贴，失望了。楼下来。

paopao00

看来是没内存了，加点虚拟的试试

13407

kernel: Out of memory

winder

正在更新楼主的内存.

cpuer

连free swap space都是0KB了

winder

cpuer 发表于 2012-12-4 11:40
连free swap space都是0KB了

你最近很活跃....

a35253283

内存不够，

atrong

内存不够，