系统日志“php-cgi: page allocation failure”，有人碰到过类似问题吗？

raoweiqin

系统环境：WEB服务器 centos 6.2  2.6.32-220.el6.x86_64
安装软件：nginx + php

碰到问题：系统日志会隔几天出现“php-cgi: page allocation failure”的报错，具体如下：

1. php-cgi: page allocation failure. order:1, mode:0x20
   
2. Pid: 16484, comm: php-cgi Not tainted 2.6.32-220.el6.x86_64 #1
   
3. Call Trace:
   
4. <IRQ>  [<ffffffff81123f0f>] ? __alloc_pages_nodemask+0x77f/0x940
   
5. [<ffffffff8115ddc2>] ? kmem_getpages+0x62/0x170
   
6. [<ffffffff8115e9da>] ? fallback_alloc+0x1ba/0x270
   
7. [<ffffffff8115e42f>] ? cache_grow+0x2cf/0x320
   
8. [<ffffffff8115e759>] ? ____cache_alloc_node+0x99/0x160
   
9. [<ffffffff8115f53b>] ? kmem_cache_alloc+0x11b/0x190
   
10. [<ffffffff8141f508>] ? sk_prot_alloc+0x48/0x1c0
    
11. [<ffffffff8141f792>] ? sk_clone+0x22/0x2e0
    
12. [<ffffffff8146ca06>] ? inet_csk_clone+0x16/0xd0
    
13. [<ffffffff814858d3>] ? tcp_create_openreq_child+0x23/0x450
    
14. [<ffffffff814832bd>] ? tcp_v4_syn_recv_sock+0x4d/0x2a0
    
15. [<ffffffff81485691>] ? tcp_check_req+0x201/0x420
    
16. [<ffffffff81482cdb>] ? tcp_v4_do_rcv+0x35b/0x430
    
17. [<ffffffffa01a8557>] ? ipv4_confirm+0x87/0x1d0 [nf_conntrack_ipv4]
    
18. [<ffffffff81484451>] ? tcp_v4_rcv+0x4e1/0x860
    
19. [<ffffffff81462100>] ? ip_local_deliver_finish+0x0/0x2d0
    
20. [<ffffffff814621dd>] ? ip_local_deliver_finish+0xdd/0x2d0
    
21. [<ffffffff81462468>] ? ip_local_deliver+0x98/0xa0
    
22. [<ffffffff8146192d>] ? ip_rcv_finish+0x12d/0x440
    
23. [<ffffffff81461eb5>] ? ip_rcv+0x275/0x350
    
24. [<ffffffff8142bebb>] ? __netif_receive_skb+0x49b/0x6e0
    
25. [<ffffffff8142df68>] ? netif_receive_skb+0x58/0x60
    
26. [<ffffffff8142e070>] ? napi_skb_finish+0x50/0x70
    
27. [<ffffffff814306f9>] ? napi_gro_receive+0x39/0x50
    
28. [<ffffffffa0159d4f>] ? bnx2_poll_work+0xd4f/0x1270 [bnx2]
    
29. [<ffffffff8100ba53>] ? ret_from_intr+0x0/0x11
    
30. [<ffffffff8127fa10>] ? swiotlb_map_page+0x0/0x100
    
31. [<ffffffffa015a2ad>] ? bnx2_poll_msix+0x3d/0xc0 [bnx2]
    
32. [<ffffffff810a0685>] ? tick_dev_program_event+0x65/0xc0
    
33. [<ffffffff81430813>] ? net_rx_action+0x103/0x2f0
    
34. [<ffffffff810a0052>] ? tick_handle_oneshot_broadcast+0x112/0x140
    
35. [<ffffffff81072161>] ? __do_softirq+0xc1/0x1d0
    
36. [<ffffffff810d94f0>] ? handle_IRQ_event+0x60/0x170
    
37. [<ffffffff8100c24c>] ? call_softirq+0x1c/0x30
    
38. [<ffffffff8100de85>] ? do_softirq+0x65/0xa0
    
39. [<ffffffff81071f45>] ? irq_exit+0x85/0x90
    
40. [<ffffffff814f4cf5>] ? do_IRQ+0x75/0xf0
    
41. [<ffffffff8100ba53>] ? ret_from_intr+0x0/0x11
    
42. <EOI>  [<ffffffff81159dad>] ? compact_zone+0x3cd/0x770
    
43. [<ffffffff81159d2c>] ? compact_zone+0x34c/0x770
    
44. [<ffffffff8115a3f1>] ? compact_zone_order+0xa1/0xe0
    
45. [<ffffffff811220ec>] ? get_page_from_freelist+0x15c/0x820
    
46. [<ffffffff8115a54c>] ? try_to_compact_pages+0x11c/0x190
    
47. [<ffffffff81123d85>] ? __alloc_pages_nodemask+0x5f5/0x940
    
48. [<ffffffff81430b00>] ? dev_queue_xmit+0x100/0x6b0
    
49. [<ffffffff8115ddc2>] ? kmem_getpages+0x62/0x170
    
50. [<ffffffff8115e9da>] ? fallback_alloc+0x1ba/0x270
    
51. [<ffffffff8115e42f>] ? cache_grow+0x2cf/0x320
    
52. [<ffffffff8115e759>] ? ____cache_alloc_node+0x99/0x160
    
53. [<ffffffff8115f53b>] ? kmem_cache_alloc+0x11b/0x190
    
54. [<ffffffff8141f508>] ? sk_prot_alloc+0x48/0x1c0
    
55. [<ffffffff8141f6bc>] ? sk_alloc+0x3c/0xf0
    
56. [<ffffffff81493c9e>] ? inet_create+0x19e/0x370
    
57. [<ffffffff81191f52>] ? new_inode+0x72/0xb0
    
58. [<ffffffff81418c37>] ? __sock_create+0x117/0x240
    
59. [<ffffffff81418dc0>] ? sock_create+0x30/0x40
    
60. [<ffffffff81418fdc>] ? sys_socket+0x3c/0x80
    
61. [<ffffffff8100b0f2>] ? system_call_fastpath+0x16/0x1b
    

复制代码

有碰到类似问题的朋友吗？网站页面打开是正常的。

pix77

内存多大，swap多大，php与nginx的使用量

zongg

free -m 看一下，是不是内存太小了？

wenhq

应该是内存小了。。。。page allocation failed. 为啥呢？ 难道都是LRU算法没找到inactive的page给page out？

pix77

那是伙伴系统