请教一个skb溢出引起的oops问题

独孤九贱

1. Mar  6 19:48:59 AnShion <8> klogd: [ 4972.694410] skb_over_panic: text:f81ac0f4 len:2682 put:1222 head:eb7be800 data:eb7be84e tail:0xeb7bf2c8 end:0xeb7bee40 dev:eth0
   
2. 
   
3. Mar  6 19:50:44 AnShion <8> klogd: [ 4972.831771] ------------[ cut here ]------------
   
4. Mar  6 19:50:44 AnShion <10> klogd: [ 4972.835740] kernel BUG at net/core/skbuff.c:127!
   
5. Mar  6 19:50:44 AnShion <8> klogd: [ 4972.835740] invalid opcode: 0000 [#1] SMP
   
6. Mar  6 19:50:44 AnShion <8> klogd: [ 4972.835740] last sysfs file: /sys/devices/virtual/net/bond0/bonding/slaves
   
7. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740] Modules linked in: nf_connmark ip_set_hash_net ip_set_hash_ip xt_set ip_set xt_hashrate xt_pcc xt_nth xt_random(P) xt_nflog xt_replace xt_index igb
   
8. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]
   
9. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740] Pid: 0, comm: swapper Tainted: P            2.6.38.8 #195 Foxconn BlackOps/BlackOps
   
10. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740] EIP: 0060:[<c062ad49>] EFLAGS: 00010282 CPU: 0
    
11. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740] EIP is at skb_put+0x89/0x90
    
12. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740] EAX: 00000089 EBX: eb7bf2c8 ECX: ffffffff EDX: 00000000
    
13. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740] ESI: 000004c6 EDI: f85cb6b0 EBP: f400bea8 ESP: f400be7c
    
14. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
    
15. Mar  6 19:50:44 AnShion <8> klogd: [ 4972.835740] Process swapper (pid: 0, ti=f400a000 task=c0a3cea0 task.ti=c0a38000)
    
16. Mar  6 19:50:44 AnShion <8> klogd: [ 4972.835740] Stack:
    
17. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  c09efcec f81ac0f4 00000a7a 000004c6 eb7be800 eb7be84e eb7bf2c8 eb7bee40
    
18. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  f39e1000 00000000 000004c6 f400bf90 f81ac0f4 c062b008 c062b008 f62711c0
    
19. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  eba0e3c0 eba0e3c0 eba0e3c0 eba0e3c0 f400bed8 c062b008 eba0e3c0 f400bef0
    
20. Mar  6 19:50:44 AnShion <8> klogd: [ 4972.835740] Call Trace:
    
21. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<f81ac0f4>] ? igb_poll+0x734/0xd00 [igb]
    
22. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<f81ac0f4>] igb_poll+0x734/0xd00 [igb]
    
23. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c062b008>] ? __kfree_skb+0x38/0x90
    
24. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c062b12a>] ? kfree_skb+0x5a/0x70
    
25. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c068df93>] ? ip_rcv+0xc3/0x320
    
26. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c0636fe2>] ? process_backlog+0x72/0x110
    
27. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c063763a>] net_rx_action+0xaa/0x1a0
    
28. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c014bfa1>] __do_softirq+0xb1/0x190
    
29. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c014bef0>] ? __do_softirq+0x0/0x190
    
30. Mar  6 19:50:44 AnShion <8> klogd: [ 4972.835740]  <IRQ>
    
31. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c014be6d>] ? irq_exit+0x5d/0x80
    
32. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c0104bc5>] ? do_IRQ+0x45/0xb0
    
33. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c01036f0>] ? common_interrupt+0x30/0x38
    
34. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c010b06e>] ? mwait_idle+0xfe/0x190
    
35. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c010214a>] ? cpu_idle+0x8a/0xc0
    
36. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c0749318>] ? rest_init+0x58/0x60
    
37. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c0a959cf>] ? start_kernel+0x31e/0x380
    
38. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c0a9546f>] ? unknown_bootoption+0x0/0x1f1
    
39. Mar  6 19:50:44 AnShion <12> klogd: [ 4972.835740]  [<c0a950a6>] ? i386_start_kernel+0xa6/0xe2
    

复制代码

如上，__kfree_skb怎么跑到igb_poll，又怎么跑到skb_put去了？是我这块代码没有看明白，还是内核打印的栈信息有问题？

peter125521

igb是什么？

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回复 1# 独孤九贱
流程在_kfree_skb后不应该在到igb_poll啊。
帮顶！


   

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回复 2# peter125521

igb是什么？

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