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    SubjectRe: Resend: Netlink socket problem

    Hi Mikado,

    On Sun, 8 Jan 2006 01:25:05 -0800 (PST)
    Mikado <Mikado <mikado4vn@yahoo.com>> wrote:

    | Is there anything wrong in my codes? I think the problem is the
    | netlink_unicast(), because when I didn't call it, everything work well.
    Check whether nl_sk equals NULL.
    I don't know whether there's an assert() macro available for you, so try this:

    /* [...] */
    if (nl_sk == NULL)
    {
    printk(KERN_ALERT "nltest: nl_sk is NULL!");
    goto return_free;
    }

    netlink_unicast(nl_sk, nl_skb, pid, 0);
    return_free:
    kfree_skb(nl_skb);
    }

    A gdb backtrace of the user space part won't give you much, since you
    found out the problem lies in kernel space.

    What does netlink_unicast() do?

    Leslie

    --
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