* 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
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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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