Herbert Xu wrote:
On Tue, Sep 18, 2007 at 09:19:33PM +0100, James Chapman wrote:
This one causes my test system to lock up. I'll investigate. Please don't apply this patch for now.

Sorry, I added a double-free on the skb after ip_queue_xmit.
Please try this one instead.
>
-       /* Free the original skb */
-       kfree_skb(skb);
-
        return 1;
-discard:
-       /* Free the new skb. Caller will free original skb. */
-       if (skb2 != skb)
-               kfree_skb(skb2);
 abort:
-       return 0;
+       /* Free the original skb */
+       kfree_skb(skb);
+       return 1;
 }

Shouldn't this return 0 in the error case and without the kfree_skb()? This lets ppp requeue the skb.

--
James Chapman
Katalix Systems Ltd
http://www.katalix.com
Catalysts for your Embedded Linux software development

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