a question on skb

a question on skb

[陈炜]

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hi,
    I am a student, I think that skb has all the information that is needed for sending and receiving.So I get the skb pointer at NF_IP_POST_ROUTING, put it in a chain  organized by myself (I use a spinlock_t  lock to control the access of the chain, I named it mylock), and return NF_STOLEN. 
  I make a  tq_timer task to start ip_finish_output2(I export it from kernel),ip_finish_output2 use the skb from my chain.I can make ftp run ok for almost 1 hour, but then the system will carsh with this information:

        ds:0018    es:0018    ss:0018
        process swapper(pid:0, stackpage = c0265000)
        stack: c01a07ea c173a088 ...........
        call trace:[<c01a07ea>]    [<c01a156d>]......
        code: 0f 0b 89 7c 24 04 b8 03 00 00 00......
        <0>kernel panic: Aiee, killing interrupt handler!
        In interrupt handler - not syncing!


    I want to know why I count run for some time but could not go on for a long time . Does it possible to transmit data by the way and how to do?thanks very much!
        

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