* netfilter: nf_conntrack_ipv4 does not show nf_nat as a user @ 2007-11-05 20:10 Chuck Ebbert 2007-11-06 0:12 ` Patrick McHardy 0 siblings, 1 reply; 4+ messages in thread From: Chuck Ebbert @ 2007-11-05 20:10 UTC (permalink / raw) To: Netdev 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 ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: netfilter: nf_conntrack_ipv4 does not show nf_nat as a user 2007-11-05 20:10 netfilter: nf_conntrack_ipv4 does not show nf_nat as a user Chuck Ebbert @ 2007-11-06 0:12 ` Patrick McHardy 2007-11-06 19:29 ` Chuck Ebbert 0 siblings, 1 reply; 4+ messages in thread From: Patrick McHardy @ 2007-11-06 0:12 UTC (permalink / raw) To: Chuck Ebbert; +Cc: Netdev Chuck Ebbert wrote: > 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. > This is "fixed" in the current kernel. ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: netfilter: nf_conntrack_ipv4 does not show nf_nat as a user 2007-11-06 0:12 ` Patrick McHardy @ 2007-11-06 19:29 ` Chuck Ebbert 2007-11-06 23:51 ` Patrick McHardy 0 siblings, 1 reply; 4+ messages in thread From: Chuck Ebbert @ 2007-11-06 19:29 UTC (permalink / raw) To: Patrick McHardy; +Cc: Netdev On 11/05/2007 07:12 PM, Patrick McHardy wrote: > Chuck Ebbert wrote: >> 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. >> > > This is "fixed" in the current kernel. By this hack? [NETFILTER]: Fix/improve deadlock condition on module removal netfilter ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: netfilter: nf_conntrack_ipv4 does not show nf_nat as a user 2007-11-06 19:29 ` Chuck Ebbert @ 2007-11-06 23:51 ` Patrick McHardy 0 siblings, 0 replies; 4+ messages in thread From: Patrick McHardy @ 2007-11-06 23:51 UTC (permalink / raw) To: Chuck Ebbert; +Cc: Netdev Chuck Ebbert wrote: > On 11/05/2007 07:12 PM, Patrick McHardy wrote: >> Chuck Ebbert wrote: >>> 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. >>> >> This is "fixed" in the current kernel. > > By this hack? > > [NETFILTER]: Fix/improve deadlock condition on module removal netfilter Thats not really a hack, the patch is fully correct, the bug was in modutils. The patch I'm talking about is 591e6206: [NETFILTER]: nf_nat: add symbolic dependency on IPv4 conntrack ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2007-11-06 23:51 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2007-11-05 20:10 netfilter: nf_conntrack_ipv4 does not show nf_nat as a user Chuck Ebbert 2007-11-06 0:12 ` Patrick McHardy 2007-11-06 19:29 ` Chuck Ebbert 2007-11-06 23:51 ` Patrick McHardy
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