Re: netfilter spurious ELOOP

[Patrick McHardy]

David Miller wrote:
> From: Francis Dupont <Francis.Dupont@xxxxxxxxxx>
> Date: Wed, 25 Mar 2009 00:02:05 +0100
>
> Adding correct CC:'s
>
> > summary: iptables command gets spurious ELOOP errors
> >
> > report: when a rule with a target like MARK --set-mark 0x80000001
> > then adding new other rules can failed with "Too many levels of symbolic
> > links" (aka ELOOP) error.
> > The problem is in kernel net/ipv4/netfilter/ip_tables.c in the 
> > mark_source_chains() routine which checks the verdict field of
> > targets even for not standard targets.
> >
> > keywords: netfilter target eloop
> >
> > environment: recent gentoo and fedora. Problem not fixed in
> > linux-2.6.29 (last stable version taken from kernel.org some minutes ago).

Just to clarify: does the problem happens when you have the MARK rule
above in a user-defined chain that has more then one jump leading to
it or does it also happen in other cases?
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