Bug 103094
| Summary: | modprobe -r hangs unloading ip_nat_ftp when stopping iptables when there are ftp connections | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Bill Cronin <bill> |
| Component: | modutils | Assignee: | Bill Nottingham <notting> |
| Status: | CLOSED DUPLICATE | QA Contact: | Brian Brock <bbrock> |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.3 | CC: | rvokal |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2006-02-21 18:58:14 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
*** This bug has been marked as a duplicate of 99057 *** I've got exactly the same problem on a fedora 3, so I think it's not resolved yet Changed to 'CLOSED' state since 'RESOLVED' has been deprecated. |
Description of problem: When stopping iptables with ip_nat_ftp loaded and there are ftp connections, the session stopping [root@shopping root]# service iptables start Applying iptables firewall rules: [ OK ] Loading additional iptables modules: ip_nat_ftp [ OK ] [root@shopping root]# service iptables stop Flushing firewall rules: [ OK ] Setting chains to policy ACCEPT: filter nat [ OK ] Unloading iptables modules: Session hangs here, server still accessable with 1 CPU pegged at 99.9% [root@shopping root]# ps -ef | grep modprobe root 2310 2240 99 10:40 pts/0 00:02:06 modprobe -r ip_nat_ftp root 2415 2327 0 10:42 pts/2 00:00:00 grep modprobe [root@shopping root]# kill 2240 [root@shopping root]# ps -ef | grep modprobe root 2310 1 99 10:40 pts/0 00:02:57 modprobe -r ip_nat_ftp root 2429 2327 0 10:43 pts/2 00:00:00 grep modprobe [root@shopping root]# kill -s 9 2310 [root@shopping root]# kill -9 2310 [root@shopping root]# ps -ef | grep modprobe root 2310 1 99 10:40 pts/0 00:03:17 modprobe -r ip_nat_ftp root 2431 2327 0 10:43 pts/2 00:00:00 grep modprobe Process 2310 seems unkillable. Reboot required to get rid of it Version-Release number of selected component (if applicable): [root@shopping root]# rpm -qa | grep modutil modutils-2.4.18-3.7x [root@shopping root]# rpm -qa | grep kern kernel-smp-2.4.20-20.7 [root@shopping root]# rpm -qa | grep iptables iptables-1.2.8-8.72.3 How reproducible: Every time. Steps to Reproduce: 1.Load/Start iptables with ip_nat_ftp as an extra module 2.Make an FTP connection 3.Unload/Stop iptables Actual results: I was left with an unkillable process taking all the CPU. Expected results: I would not be left with an unkillable process taking all the CPU. ip_nat_ftp would unload. Additional info: