Messages in this thread | | | Date | Tue, 08 Aug 2006 18:39:20 -0700 (PDT) | Subject | Re: [RFC][PATCH 2/9] deadlock prevention core | From | David Miller <> |
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From: Daniel Phillips <phillips@google.com> Date: Tue, 08 Aug 2006 18:34:43 -0700
> 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.
I think you need to study the networking stack a little more before you continue to play in this delicate area :-) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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