Cannot unload iptables xt_state module
Issue
-
The unloading of netfilter modules (triggered by e.g. service iptables stop) may hang under certain circumstances. The ps output would show the following:
root 16344 16272 99 12:13 pts/1 00:06:18 modprobe -r xt_state
Environment
- RHEL-4 kernel-2.6.9-78.EL
- RHEL-5 kernel-2.6.18-128.el5
- Note the kernel versions refer to the reproducing environment. The bug causing the problem is persent in both the RHEL major releases and has not been fixed yet.
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