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    SubjectRe: PROBLEM: 2.6.11-rc2 hangs on bridge shutdown (br0)
    On Sat, Feb 05, 2005 at 07:50:39PM +0900, YOSHIFUJI Hideaki / ?$B5HF#1QL@ wrote:
    > Yes, IPv6 needs "split device" semantics
    > (for per-device statistics such as Ip6InDelivers etc),
    > and I like later solution.

    OK. Is there any reason why IPv4 should be different from IPv6 in
    this respect though?

    If the split device dst's are to be kept, we'll need a way to clean
    them up. There are two choices:

    1) Put the dst's on IPv6's own GC so that we can search by rt6i_idev.
    2) Change the generic GC so that dst->ops->ifdown is always called even
    if dst->dev does not match with the device going down. We also need to
    change the individual ifdown functions to check for ->dev. The IPv6
    ifdown function can then check for ->rt6i_idev as well.

    What's your preference?

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