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    SubjectRe: [RFC][PATCH 2/9] deadlock prevention core
    David Miller wrote:
    > From: Daniel Phillips <phillips@google.com>
    >>Can you please characterize the conditions under which skb->dev changes
    >>after the alloc? Are there writings on this subtlety?
    >
    > The packet scheduler and classifier can redirect packets to different
    > devices, and can the netfilter layer.
    >
    > The setting of skb->dev is wholly transient and you cannot rely upon
    > it to be the same as when you set it on allocation.
    >
    > Even simple things like the bonding device change skb->dev on every
    > receive.

    Thankyou, this is easily fixed.

    > I think you need to study the networking stack a little more before
    > you continue to play in this delicate area :-)

    The VM deadlock is also delicate. Perhaps we can work together.

    Regards,

    Daniel
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