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Date:	Sun, 16 Dec 2012 20:46:29 -0800
From:	Eric Dumazet <erdnetdev@...il.com>
To:	"Kirill A. Shutemov" <kirill@...temov.name>
Cc:	David Miller <davem@...emloft.net>, maxk@....qualcomm.com,
	netdev@...r.kernel.org, dwmw2@...radead.org
Subject: Re: openconnect triggers soft lockup in __skb_get_rxhash

On Mon, 2012-12-17 at 03:46 +0200, Kirill A. Shutemov wrote:
> On Sun, Dec 16, 2012 at 05:22:14PM -0800, David Miller wrote:
> > 
> > Already fixed in Linus's tree by:
> > 
> > From 499744209b2cbca66c42119226e5470da3bb7040 Mon Sep 17 00:00:00 2001
> 
> No, it's not. I use up-to-date (2a74dbb) Linus tree with the patch in and
> still see the issue.
> 

Coud you try the following one liner ?

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 255a9f5..173acf5 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1199,6 +1199,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
 		skb_shinfo(skb)->tx_flags |= SKBTX_DEV_ZEROCOPY;
 	}
 
+	skb_reset_network_header(skb);
 	rxhash = skb_get_rxhash(skb);
 	netif_rx_ni(skb);
 


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