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SubjectRe: Linux 2.4.18 Kernel Panics related to Netfilter/iptables
> On Mon, 2 Sep 2002 10:21:56 +0200
> >
> > One of my machines running kernel 2.4.18 is getting kernel panics intermittently (30minutes to 4/5 hours).
> >
> > from the logs I believe is the culprit:
> >
> > kernel: LIST_DELETE: ip_conntrack_core.c:165 `&ct->tuplehash[IP_CT_DIR_REPLY]'(c6c78e44) not in &ip_conntrack_hash [hash_conntrack(&ct->tuplehash[IP_CT_DIR_REPLY].tuple)].
>
> This problem has been plaguing us for a while. You're using gcc 2.96, which is interesting.
>
> What connection tracking/NAT modules have you got?
ipt_LOG ipt_limit ipt_state iptable_filter ipt_MASQUERADE iptable_nat

> What kind of traffic are you getting? (eg. are you getting IRC traffic? FTP traffic?).
There is nothing really to hectic that is using NAT as most of the traffic goes via a proxy. I'd say the only things that use NAT would be services that dont support an http proxy, kazaa,edonkey,SMTP,pop.
The following ports are NAT'ed 25 22 80 (not really used) 9034 59651 4661 4662

This is the NAT part the gateway config:
$IPTABLES -t nat -A POSTROUTING -o $WAN -j MASQUERADE
$IPTABLES -A FORWARD -i $LAN -j ACCEPT
$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A FORWARD -m limit --limit 3/minute --limit-burst 3 -j LOG --log-level DEBUG --log-prefix "IPT FORWARD packet died: "

Traffic is pretty low in general. If there is any other information i can give you please let me know.

Regards
Merritt
>
> I really want to chase this down, but I've yet to find the cause.
>
> Rusty.
> --
> there are those who do and those who hang on and you don't see too
> many doers quoting their contemporaries. -- Larry McVoy
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