lkml.org 
[lkml]   [2006]   [May]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.6.17-rc4: netfilter LOG messages truncated via NETCONSOLE
On Wed, May 31, 2006 at 04:57:13PM +0200, Patrick McHardy wrote:
> Frank van Maarseveen wrote:
> > I have two machines named "porvoo" and "espoo". The first one
> > has netconsole configured to send kernel messages to UDP port 514
> > (a.k.a. syslog) on the other machine.
> >
> > Somewhere between 2.6.13.2 and 2.6.17-rc4 there is a regression causing
> > the netconsole messages which originate from netfilter to be truncated
> > right after the MAC addresses. For example, /var/log/messages on the
> > sending machine says:
> >
> > May 31 09:28:11 porvoo kernel: IN=eth0 OUT= MAC=00:12:3f:85:9f:92:00:04:9a:a0:1d:d1:08:00 SRC=192.168.100.30 DST=172.17.1.113 LEN=60 TOS=0x00 PREC=0x00 TTL=54 ID=51496 DF PROTO=TCP SPT=50868 DPT=22 WINDOW=5840 RES=0x00 SYN URGP=0
> >
> > but netconsole messages captured in /var/log/messages on the receiving
> > machine:
> >
> > May 31 09:28:11 porvoo IN=eth0 OUT=
> > May 31 09:28:11 porvoo MAC=
> > May 31 09:28:11 porvoo 00:
> > May 31 09:28:11 porvoo 12:
> > May 31 09:28:11 porvoo 3f:
> > May 31 09:28:11 porvoo 85:
> > May 31 09:28:11 porvoo 9f:
> > May 31 09:28:11 porvoo 92:
> > May 31 09:28:11 porvoo 00:
> > May 31 09:28:11 porvoo 04:
> > May 31 09:28:11 porvoo 9a:
> > May 31 09:28:11 porvoo a0:
> > May 31 09:28:11 porvoo 1d:
> > May 31 09:28:11 porvoo d1:
> > May 31 09:28:11 porvoo 08:
> > May 31 09:28:11 porvoo 00
> > May 31 09:49:06 espoo -- MARK --
> >
> > I ran a tcpdump on the sending machine to verify(?) what goes out but in
> > that case the 2.6.17-rc4 kernel starts to report "protocol 0000 is buggy":

[...]

>
>
> The message means that there was recursion and netpoll fell back
> to dev_queue_xmit This patch should fix the "protocol is buggy"
> messages, netpoll didn't set skb->nh.raw. Please try if it also
> makes the other problem go away.

"protocol 0000 is buggy" is gone. The other problem is still there.
--
Frank
-
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: 2006-05-31 18:08    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site