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).