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iptable Kernel panic [message #16345] Sat, 01 September 2007 22:27 Go to next message
makiavelli22 is currently offline  makiavelli22
Messages: 3
Registered: September 2007
Junior Member
i have a dedicated server with a couple vps servers in there. When trying to turn iptables off the server crashes. I did a chkconfig iptables off already but if i type service iptables off it will crash again. When it does crash, it gives a kernel panic error... any idea?

[root@myserver ~]# uname -a
Linux myserver 2.6.18-8.1.8.el5.028stab039.1 #1 SMP Mon Jul 23 18:02:32 MSD 2007 x86_64 x86_64 x86_64 GNU/Linux

Re: iptable Kernel panic [message #16346 is a reply to message #16345] Sat, 01 September 2007 22:34 Go to previous messageGo to next message
kir is currently offline  kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia
Senior Member

Please report it in greater details; this is important.

Some hints on how to report are at http://wiki.openvz.org/Oops


Kir Kolyshkin
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Re: iptable Kernel panic [message #16348 is a reply to message #16346] Sat, 01 September 2007 23:03 Go to previous messageGo to next message
makiavelli22 is currently offline  makiavelli22
Messages: 3
Registered: September 2007
Junior Member
There is no call trace in the oops report but here is a copy of the /var/log/messages

Aug 31 13:56:36 server avahi-daemon[31661]: Withdrawing address record for xx.xx.xx.xx(I removed it myself for privacy) on eth0.
Aug 31 13:56:36 server avahi-daemon[31661]: Leaving mDNS multicast group on interface eth0.IPv4 with address xx.xx.xx.xx(I removed it myself for privacy)
Aug 31 13:56:36 server avahi-daemon[31661]: iface.c: interface_mdns_mcast_join() called but no local address available.
Aug 31 13:56:36 server avahi-daemon[31661]: Interface eth0.IPv4 no longer relevant for mDNS.
Aug 31 13:56:36 server avahi-daemon[31661]: Withdrawing address record for fe80::219:b9ff:fedf:9770 on eth0.
Aug 31 13:56:36 server avahi-daemon[31661]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::219:b9ff:fedf:9770.
Aug 31 13:56:36 server avahi-daemon[31661]: iface.c: interface_mdns_mcast_join() called but no local address available.
Aug 31 13:56:36 server avahi-daemon[31661]: Interface eth0.IPv6 no longer relevant for mDNS.
Aug 31 13:56:37 server kernel: bnx2: eth0: using MSI
Aug 31 13:56:37 server kernel: ADDRCONF(NETDEV_UP): eth0: link is not ready
Aug 31 13:56:39 server kernel: bnx2: eth0 NIC Link is Up, 100 Mbps full duplex, receive & transmit flow control ON
Aug 31 13:56:39 server kernel: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Aug 31 13:56:39 server avahi-daemon[31661]: New relevant interface eth0.IPv4 for mDNS.
Aug 31 13:56:39 server avahi-daemon[31661]: Joining mDNS multicast group on interface eth0.IPv4 with address xx.xx.xx.xx(I removed it myself for privacy)
Aug 31 13:56:39 server avahi-daemon[31661]: Registering new address record for xx.xx.xx.xx(I removed it myself for privacy) on eth0.
Aug 31 13:56:39 server avahi-daemon[31661]: Registering new address record for xx.xx.xx.xx(I removed it myself for privacy) on eth0.
Aug 31 13:56:39 server avahi-daemon[31661]: Withdrawing address record for xx.xx.xx.xx(I removed it myself for privacy) on eth0.
Aug 31 13:56:39 server avahi-daemon[31661]: Registering new address record for xx.xx.xx.xx(I removed it myself for privacy) on eth0.
Aug 31 13:56:40 server avahi-daemon[31661]: New relevant interface eth0.IPv6 for mDNS.
Aug 31 13:56:40 server avahi-daemon[31661]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::219:b9ff:fedf:9770.

Re: iptable Kernel panic [message #16364 is a reply to message #16345] Mon, 03 September 2007 08:35 Go to previous messageGo to next message
tek2 is currently offline  tek2
Messages: 2
Registered: September 2007
Junior Member
I am having same problem in centos5
Re: iptable Kernel panic [message #21273 is a reply to message #16345] Thu, 04 October 2007 06:57 Go to previous messageGo to next message
fxwvz is currently offline  fxwvz
Messages: 1
Registered: October 2007
Junior Member
I am having also the same problem when edit of restart the iptables on centos5 and lastest vz kernel the server is freezing and must have a hard reboot.
Re: iptable Kernel panic [message #26541 is a reply to message #16345] Sun, 27 January 2008 17:36 Go to previous messageGo to next message
Cosu is currently offline  Cosu
Messages: 1
Registered: January 2008
Junior Member
Unfortunately I have the same problem on a centos 5 machine. If i restart the iptables service it prints out failed on the unloading module part and a little bit after that it send a kernel panic and the whole thing freezes.

My belief is that there's a problem with the unloading of the iptables module. I have modified the iptables script from /etc/init.d to skip the unloading part and it seems to work without problems.



Linux hendrix.rgc.ro 2.6.18-53.1.4.el5.028stab053.4 #1 SMP Fri Jan 18 12:31:04 MSK 2008 i686 i686 i386 GNU/Linux

[root@hendrix ~]# service iptables restart
Flushing firewall rules: [ OK ]
Setting chains to policy ACCEPT: mangle filter [ OK ]
Unloading iptables modules: [FAILED]
[root@hendrix ~]# service vz stop
Shutting down VE 102
Shutting down VE 101


and then i get the kernel panic (see attachment)

The hardware is a HP Ml370 G3 with one Xeon Processor at 3.06 and 4gb of ram. I'm using the standard kernel as i'm not hoping to add more than the current 4gb.

The machine has been set up for testing open vz and migrating an older production machine to several VEs. Until now all went well but kernel panic and production stable don't go well together.

I have opened a bug on the openvz bugzilla: http://bugzilla.openvz.org/show_bug.cgi?id=796

[Updated on: Sun, 27 January 2008 18:08]

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Re: iptable Kernel panic [message #27923 is a reply to message #16345] Mon, 03 March 2008 11:15 Go to previous messageGo to next message
koct9i is currently offline  koct9i
Messages: 51
Registered: February 2008
Member
Hello.

Please show lsmod output before "service iptables restart" and before "service vz stop".
Re: iptable Kernel panic [message #27924 is a reply to message #16345] Mon, 03 March 2008 11:37 Go to previous message
xemul is currently offline  xemul
Messages: 248
Registered: November 2005
Senior Member
Guys, this is a BUG. All bugs discussions are to be in bugzilla. Moreover, the appropriate bug is already opened.

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