Repost: ip_local_deliver: bad skb:

Repost: ip_local_deliver: bad skb:

[Peter B. West]

Posting this again, as I haven't seen any replies.  Is this the right 
mailing list?


Just lately, my /var/log/messages has been filling up with messages like
this:

Aug  6 14:26:35 jezebel kernel: ip_local_deliver: bad skb: \
                             PRE_ROUTING LOCAL_IN LOCAL_OUT POST_ROUTING
Aug  6 14:26:35 jezebel kernel: skb: pf=2 (unowned) dev=lo len=52
Aug  6 14:26:35 jezebel kernel: PROTO=6 127.0.0.1:35923 127.0.0.1:111 \
                                       L=52 S=0x00 I=4590 F=0x4000 T=64

I've also seen PROTOs 17 and 1.

Can anyone enlighten me as to what is going on?

Thanks
Peter
-- 
Peter B. West <http://cv.pbw.id.au/>
Folio <http://defoe.sourceforge.net/folio/>
<http://folio.bkbits.net/> <- the atTridged version
---
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Re: Repost: ip_local_deliver: bad skb:

[Marc Haber]

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On Fri, Aug 12, 2005 at 01:01:19AM +0100, Peter B. West wrote:
> Posting this again, as I haven't seen any replies.  Is this the right 
> mailing list?
> 
> 
> Just lately, my /var/log/messages has been filling up with messages like
> this:
> 
> Aug  6 14:26:35 jezebel kernel: ip_local_deliver: bad skb: \
>                             PRE_ROUTING LOCAL_IN LOCAL_OUT POST_ROUTING
> Aug  6 14:26:35 jezebel kernel: skb: pf=2 (unowned) dev=lo len=52
> Aug  6 14:26:35 jezebel kernel: PROTO=6 127.0.0.1:35923 127.0.0.1:111 \
>                                       L=52 S=0x00 I=4590 F=0x4000 T=64
> 
> I've also seen PROTOs 17 and 1.
> 
> Can anyone enlighten me as to what is going on?

That looks like debug code at an inappropriate place, I have that one
as well. On the net, I found the attached patch (which, in this
version, applies against 2.6.12.4). Switching off netfilter debugging
in the kernel config, so the message found out there, will solve the
issue as well.

Greetings
Marc

-- 
-----------------------------------------------------------------------------
Marc Haber         | "I don't trust Computers. They | Mailadresse im Header
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Re: Repost: ip_local_deliver: bad skb:

[Peter B. West]

Peter B. West wrote:
> Posting this again, as I haven't seen any replies.  Is this the right 
> mailing list?
> 
> 
> Just lately, my /var/log/messages has been filling up with messages like
> this:
> 
> Aug  6 14:26:35 jezebel kernel: ip_local_deliver: bad skb: \
>                             PRE_ROUTING LOCAL_IN LOCAL_OUT POST_ROUTING
> Aug  6 14:26:35 jezebel kernel: skb: pf=2 (unowned) dev=lo len=52
> Aug  6 14:26:35 jezebel kernel: PROTO=6 127.0.0.1:35923 127.0.0.1:111 \
>                                       L=52 S=0x00 I=4590 F=0x4000 T=64
> 
> I've also seen PROTOs 17 and 1.
> 
> Can anyone enlighten me as to what is going on?

Apparently this is a known problem with the 2.6.12 kernel, which is 
being addressed somewhere in 2.6.13.  :Fix" it by turning off iptables 
debugging in the kernel.

-- 
Peter B. West <http://cv.pbw.id.au/>
Folio <http://defoe.sourceforge.net/folio/>
<http://folio.bkbits.net/> <- the atTridged version
---
[This E-mail has been scanned for viruses but it is your responsibility 
to maintain up to date anti virus software on the device that you are
currently using to read this email. ]