From: Patrick McHardy <kaber@trash.net>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Mike Accetta <maccetta@laurelnetworks.com>, netdev@vger.kernel.org
Subject: Re: 2.6.20 crash in tcp_tso_segment()
Date: Tue, 13 Feb 2007 15:34:43 +0100 [thread overview]
Message-ID: <45D1CC83.8080603@trash.net> (raw)
In-Reply-To: <E1HFc6X-0006n7-00@gondolin.me.apana.org.au>
Herbert Xu wrote:
> Mike Accetta <maccetta@laurelnetworks.com> wrote:
>
>>Obviously the code believes it can assume that there are always multiple
>>sk_buff's in the chain. The stack trace seems to implicate iptables in
>>the scenario (twice) if that means anything. Any ideas about what may
>>be going wrong here? There is indeed a private module loaded at the time
>>but it does no networking and I doubt it is the culprit.
>
>
> Yeah we should never get here if we only have one segment.
> Could you get it to print out the value of skb->gso_*?
The callpath shows the REJECT target sending a TCP reset.
I'm guessing it has something to do with skb_copy_expand
copying the gso fields.
next prev parent reply other threads:[~2007-02-13 14:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-09 5:57 2.6.20 crash in tcp_tso_segment() Mike Accetta
2007-02-09 20:12 ` Herbert Xu
2007-02-13 14:34 ` Patrick McHardy [this message]
2007-02-13 16:18 ` Mike Accetta
2007-02-13 17:51 ` Herbert Xu
2007-02-13 20:34 ` David Miller
2007-02-13 21:51 ` Herbert Xu
2007-02-13 21:53 ` David Miller
2007-02-14 16:27 ` Mike Accetta
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