Resending: RT patches expose netdev race [was Re: [RFC] [patch 2/2] powerpc 2.6.21-rt1: fix kernel hang and/or panic

[Benjamin Herrenschmidt]

> I do not know why sk_buff->head would be null, or
> would be set in a racy kind of way, or why the rt patches
> would cause this. But the evidence implicates that.

Would it be possible that a locking bug in spidernet would cause it
under some circumstances to get a stale skb pointer ?

Ben.