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    SubjectRe: [PATCH] tun: orphan an skb on tx
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    Le mardi 13 avril 2010 à 17:36 +0200, Jan Kiszka a écrit :
    > Michael S. Tsirkin wrote:
    > > The following situation was observed in the field:
    > > tap1 sends packets, tap2 does not consume them, as a result
    > > tap1 can not be closed.
    >
    > And before that, tap1 may not be able to send further packets to anyone
    > else on the bridge as its TX resources were blocked by tap2 - that's
    > what we saw in the field.
    >

    After the patch, tap1 is able to flood tap2, and tap3/tap4 not able to
    send one single frame. Is it OK ?

    Back to the problem : tap1 cannot be closed.

    Why ? because of refcounts ?

    When a socket with inflight tx packets is closed, we dont block the
    close, we only delay the socket freeing once all packets were delivered
    and freed.



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