lkml.org 
[lkml]   [2002]   [Jul]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [GENERIC HDLC LAYER] Messages of a hdlc device
Em Tue, Jul 16, 2002 at 03:10:33PM +0200, Krzysztof Halasa escreveu:
> henrique <henrique@cyclades.com> writes:
>
> > I'm using the generic hdlc layer with PPP protocol against a Lucent MAX6000.
> > Everything works OK but there a kernel message bothering me:
> >
> > protocol 0008 is buggy, dev hdlc0
> >
> > I get this message nearly once per minute.
> >
> > Do anyone know what is this message about ?

> Not sure what exactly causes it. I was getting it while running tcpdump
> on PPP device.

This is becoming a FAQ... see net/core/dev.c, line 907 on 2.5:

/* skb->nh should be correctly
set by sender, so that the second statement is
just protection against buggy protocols.
*/
skb2->mac.raw = skb2->data;

if (skb2->nh.raw < skb2->data || skb2->nh.raw > skb2->tail) {
if (net_ratelimit())
printk(KERN_DEBUG "protocol %04x is buggy, dev %s\n",
skb2->protocol, dev->name);
skb2->nh.raw = skb2->data;
}

- Arnaldo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:27    [W:0.071 / U:0.308 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site