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Message-Id: <1179362985.32247.252.camel@localhost.localdomain>
Date:	Thu, 17 May 2007 10:49:45 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Linas Vepstas <linas@...tin.ibm.com>
Cc:	Tsutomu OWA <tsutomu.owa@...hiba.co.jp>, linuxppc-dev@...abs.org,
	mingo@...e.hu, tglx@...utronix.de, cbe-oss-dev@...abs.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Resending: RT patches expose netdev race [was Re: [RFC] [patch
	2/2] powerpc 2.6.21-rt1: fix kernel hang and/or panic


> 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.


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