From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041111 Firefox/1.0 Description of problem: When running services iptables and NetworkManger together, system hangs on shutdown when stopping iptables. It even hangs when I remove K92iptables so it could also be related to stoping loopback. Version-Release number of selected component (if applicable): NetworkManager-0.3.3-1.cvs20050119.2.fc3 iptables-1.2.11-3.1.FC3 kernel-2.6.10-1.760_FC3 How reproducible: Always Steps to Reproduce: 1. Start NetworkManger 2. Start iptables 3. shutdown Actual Results: system hangs Expected Results: clean shutdown Additional info: Hardware: 1 NIC e1000 The problem is not related to the iptables rules itself, you can accept all packets and it happens anyway
Created attachment 110630 [details] chkconfig --list
This bug occurs on my notebook, too. I have done some investigation and can provide a quick work-around: disable the iptables modules unloading by setting the corresponding option in /etc/sysconfig/iptables-config to "no". Shutting down the iptables service lets me reproduce the problem: I had a "modprobe -r ipt_state" process consuming all CPU and which could not be killed by a KILL signal. The bug only occurs if the NetworkManager actually has been active (i.e. after the NetworkManagerInfo applet told it where to connect).