Messages in this thread |  | | Date | Tue, 25 Dec 2012 16:50:11 +0800 | From | Gao feng <> | Subject | Re: kernel panic when running /etc/init.d/iptables restart |
| |
On 2012/12/25 15:25, canqun zhang wrote: > Hi Gao feng > The stack information is as follows. The kenel will panic because the > nf_ct_destroy is NULL.
Thanks! It seems that nf_conntrack_l[3,4]proto_unregister doesn't make sure nf_conns of the proto being destroyed.
If I'm right, there is another problem even your fix this panic problem. the l3,14proto will be unregistered before all of it's nf_conns being destroyed. So even nf_ct_destroy is not NULL,in destroy_conntrack we are not able to find the right l4proto,the l4proto->destroy will be incorrect.resources will not be released correctly.
So I think the root problem is we do register/unregister, set/unset both on the first net (init_net), Maybe it's better to do register set on the first net, and do unregister unset on the last net.
|  |