https://bugzilla.redhat.com/show_bug.cgi?id=333481#c3
This is netfilter kernel problem. There is a usage count for the conntrack_ipv4 module from the nf_nat module, which is not reported by lsmod. How to reproduce: # modprobe nf_conntrack_ipv4 # lsmod | grep nf_conntrack_ipv4 nf_conntrack_ipv4 11717 0 nf_conntrack 51977 2 nf_conntrack_ipv4,nf_conntrack_ipv6 nfnetlink 8281 3 nf_conntrack_ipv4,nf_conntrack_ipv6,nf_conntrack # modprobe nf_nat # lsmod | grep nf_conntrack_ipv4 nf_conntrack_ipv4 11717 1 nf_conntrack 51977 3 nf_nat,nf_conntrack_ipv4,nf_conntrack_ipv6 nfnetlink 8281 4 nf_nat,nf_conntrack_ipv4,nf_conntrack_ipv6,nf_co nntrack # lsmod | grep nf_nat nf_nat 18669 0 nf_conntrack 51977 3 nf_nat,nf_conntrack_ipv4,nf_conntrack_ipv6 nfnetlink 8281 4 nf_nat,nf_conntrack_ipv4,nf_conntrack_ipv6,nf_co nntrack # rmmod nf_conntrack_ipv4 ERROR: Module nf_conntrack_ipv4 is in use # rmmod nf_nat # rmmod nf_conntrack_ipv4 - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
