From: Gao feng <gaofeng@cn.fujitsu.com>
To: canqun zhang <canqunzhang@gmail.com>
Cc: netfilter-devel@vger.kernel.org,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Patrick McHardy <kaber@trash.net>,
pablo@netfilter.org, ebiederm@xmission.com
Subject: Re: [PATCH 01/19] netfilter: move nf_conntrack initialize out of pernet operations
Date: Fri, 28 Dec 2012 15:16:07 +0800 [thread overview]
Message-ID: <50DD4737.2070306@cn.fujitsu.com> (raw)
In-Reply-To: <CAFFEFTXT_fkF2pPSxDEEgic80NVWLqBWtFuvs6W9uDUW2aCnqw@mail.gmail.com>
On 12/28/12 11:52, canqun zhang wrote:
> Hi all
> As discussed above,if the host machine create several linux
> containers, there will be several net namespaces.Resources with "nf
> conntrack" are registered or unregistered on the first net
> namespace(init_net),But init_net is not unregistered lastly,so
> cleanuping other net namespaces will triger painic.
> If net namespaces are created with the order of 1,2,...n,they should
> be cleaned with the order of n,...2,1,so in this case init_net will be
> unregistered lastly.
> I fixed it up (see below). I have taken a lot of test!
>
I thinks this BUG is a netfilter BUG,not a netns BUG.
Other subsystems implemented netns support don't use init_net to
do some special works((un)register/(un)set).
In fact,we can't use init_net to do this job well.such as function
nf_conntrack_clean,we shoud set ip_ct_attach to NULL before any
netns doing cleanup jobs, and set nf_ct_destroy to NULL after all of
netns finish these cleanup jobs.
So I think finally we still need this patchset,And this is a regular
way to fix this problem.
Can you help me to test if the panic bug is fixed by this patchset?
and then give me your tested-by?
thank you very much!
next prev parent reply other threads:[~2012-12-28 7:59 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-28 2:36 [PATCH 01/19] netfilter: move nf_conntrack initialize out of pernet operations Gao feng
2012-12-28 2:36 ` [PATCH 02/19] netfilter: expect: move initial codes out of pernet_operations Gao feng
2012-12-28 2:36 ` [PATCH 03/19] netfilter: acct: " Gao feng
2012-12-28 2:36 ` [PATCH 04/19] netfilter: tstamp: " Gao feng
2012-12-28 2:36 ` [PATCH 05/19] netfilter: ecache: " Gao feng
2012-12-28 2:36 ` [PATCH 06/19] netfilter: timeout: " Gao feng
2012-12-28 2:36 ` [PATCH 07/19] netfilter: helper: " Gao feng
2012-12-28 2:36 ` [PATCH 08/19] netfilter: proto: " Gao feng
2012-12-28 2:36 ` [PATCH 09/19] netfilter: l3proto: prepare reworking l3proto support for netns Gao feng
2012-12-28 2:36 ` [PATCH 10/19] netfilter: ipv4: register ipv4 in module_init Gao feng
2012-12-28 2:36 ` [PATCH 10/19] netfilter: ipv4: register l3proto " Gao feng
2012-12-28 2:36 ` [PATCH 11/19] netfilter: ipv6: register l3proto ipv6 " Gao feng
2012-12-28 2:36 ` [PATCH 12/19] netfilter: l4proto: prepare reworking l4proto support for netns Gao feng
2012-12-28 2:36 ` [PATCH 13/19] netfilter: ipv4: move registration codes out of pernet_operations Gao feng
2012-12-28 2:36 ` [PATCH 14/19] netfilter: ipv6: " Gao feng
2012-12-28 2:36 ` [PATCH 15/19] netfilter: sctp: " Gao feng
2012-12-28 2:36 ` [PATCH 16/19] netfilter: udplite: " Gao feng
2012-12-28 2:36 ` [PATCH 17/19] netfilter: dccp: " Gao feng
2012-12-28 2:36 ` [PATCH 18/19] netfilter: gre: " Gao feng
2012-12-28 2:36 ` [PATCH 19/19] netfilter: gre: fix resource leak when unregister gre proto Gao feng
2013-01-05 3:50 ` Pablo Neira Ayuso
2013-01-07 1:27 ` Gao feng
2013-01-07 2:15 ` Pablo Neira Ayuso
2013-01-07 2:38 ` Pablo Neira Ayuso
2013-01-07 2:59 ` Gao feng
2013-01-07 3:05 ` Gao feng
2013-01-07 3:27 ` Pablo Neira Ayuso
2013-01-07 3:43 ` Gao feng
2012-12-28 3:52 ` [PATCH 01/19] netfilter: move nf_conntrack initialize out of pernet operations canqun zhang
2012-12-28 4:48 ` Eric W. Biederman
2012-12-28 5:32 ` canqun zhang
2012-12-28 6:00 ` Eric W. Biederman
2012-12-28 11:58 ` Pablo Neira Ayuso
2012-12-28 7:16 ` Gao feng [this message]
2012-12-28 8:48 ` canqun zhang
2013-01-10 1:03 ` Gao feng
2013-01-10 16:41 ` Pablo Neira Ayuso
2013-01-11 1:01 ` Gao feng
2013-01-13 15:07 ` Pablo Neira Ayuso
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