Subject: Re: [Bugme-new] [Bug 16529] New: xennet driver crashes when using with pseudowire aka l2tpv3

From: Ian Campbell <[email-masked]>
Date: Thu, 26 Aug 2010 08:10:40 +0100

On Wed, 2010-08-25 at 23:56 +0100, Jeremy Fitzhardinge wrote:

> >> Here is a link for the setup
> >> http://www.pastebin.org/445975
> >> and here a link with more details about the crash http://pastebin.org/449221
> 
> Please attach these to the bug or something; pastebin is not working for
> me at the moment.

It's really slow for me but got there eventually. I've attached the
files.

It's apparently hitting this BUG_ON in __skb_pull:
        
        static inline unsigned char *__skb_pull(struct sk_buff *skb, unsigned int len)
        {
                skb->len -= len;
                BUG_ON(skb->len < skb->data_len);
                return skb->data += len;
        }

Ian.