From: Chuck Ebbert <cebbert@redhat.com>
To: Netdev <netdev@vger.kernel.org>
Subject: netfilter: nf_conntrack_ipv4 does not show nf_nat as a user
Date: Mon, 05 Nov 2007 15:10:49 -0500 [thread overview]
Message-ID: <472F78C9.9060900@redhat.com> (raw)
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
next reply other threads:[~2007-11-05 20:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-05 20:10 Chuck Ebbert [this message]
2007-11-06 0:12 ` netfilter: nf_conntrack_ipv4 does not show nf_nat as a user Patrick McHardy
2007-11-06 19:29 ` Chuck Ebbert
2007-11-06 23:51 ` Patrick McHardy
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