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[Xen-users] network bridge fails after reboot

  • To: Xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Juan Antonio Cortés <jancorg@xxxxxxxxx>
  • Date: Tue, 2 Mar 2010 22:17:09 +0100
  • Cc:
  • Delivery-date: Tue, 02 Mar 2010 13:21:47 -0800
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>


hi,

I solved this issue removing /var/lib/xen/save/* files and xen (via xenstored-rm) references . everything is working as ussualy  with NO other change. (just a reboot)

I restarted this server to change maxloops, but after the fail (It reached vif127.0) something weird happened every reboot while adding eth1 to bridge as described before.

I hope this can help in event you face this Poltergeist.

best regards.

El 28 de febrero de 2010 13:29, Juan Antonio Cortés <jancorg@xxxxxxxxx> escribió:

Hi,

I have been running a xen server with the same config for a year.
It has two bridges, one for all nodes and another one for a lan between some nodes. It just worked well.
I rebooted the server for updating kernel max loop devs to 256 because I cannot create more instances due to the limit.

Now, the script only setup one network bridge and does not setu second. It is supposed to be a mishandling with bridges since I configure xen with vif-route and it works fine. At some point, xen tries to add the interface to the bridge and it breaks the iface (see HWAddr). I compared all scripts with very older backups and checked if apt updated the packages but software seem to be the same.

Since Xens breaks network interface trying to restore virtual machines, Im wondering if is there any place where I can remove the start of this machines. (They were running when I exec reboot)

Please find bellow some info.

Ifconfig )
eth1      Link encap:Ethernet  HWaddr 00:00:00:00:00:00  
          inet addr:123.123.123.123  Bcast:123.123.123.247  Mask:255.255.255.248
route)
It just setup loopback and lan interface.

logs)
messages)
Feb 26 10:19:06 poseidon kernel: device vif11.0 entered promiscuous mode
Feb 26 10:19:06 poseidon kernel: audit(1267201146.695:15): dev=vif11.0 prom=256 old_prom=0 auid=4294967295
Feb 26 10:19:06 poseidon kernel: ADDRCONF(NETDEV_UP): vif11.0: link is not ready
Feb 26 10:20:47 poseidon kernel: xenbr1: port 2(vif11.0) entering disabled state
Feb 26 10:20:47 poseidon kernel: device vif11.0 left promiscuous mode
Feb 26 10:20:47 poseidon kernel: audit(1267201247.214:16): dev=vif11.0 prom=0 old_prom=256 auid=4294967295
Feb 26 10:20:47 poseidon kernel: xenbr1: port 2(vif11.0) entering disabled state
Feb 26 10:21:06 poseidon kernel: device vif12.0 entered promiscuous mode
Feb 26 10:21:06 poseidon kernel: audit(1267201266.019:17): dev=vif12.0 prom=256 old_prom=0 auid=4294967295
Feb

regards! 26 10:21:06 poseidon kernel: ADDRCONF(NETDEV_UP): vif12.0: link is not ready
Feb 26 10:22:46 poseidon kernel: xenbr1: port 2(vif12.0) entering disabled state
Feb 26 10:22:46 poseidon kernel: device vif12.0 left promiscuous mode
Feb 26 10:22:46 poseidon kernel: audit(1267201366.425:18): dev=vif12.0 prom=0 old_prom=256 auid=4294967295
Feb 26 10:22:46 poseidon kernel: xenbr1: port 2(vif12.0) entering disabled state
syslog)
Feb 26 10:19:06 poseidon kernel: device vif11.0 entered promiscuous mode
Feb 26 10:19:06 poseidon kernel: audit(1267201146.695:15): dev=vif11.0 prom=256 old_prom=0 auid=4294967295
Feb 26 10:19:06 poseidon kernel: ADDRCONF(NETDEV_UP): vif11.0: link is not ready
Feb 26 10:19:06 poseidon logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif11.0, bridge xenbr1.
Feb 26 10:19:06 poseidon logger: /etc/xen/scripts/vif-bridge: Writing backend/vif/11/0/hotplug-status connected to xenstore.
Feb 26 10:19:08 poseidon logger: /etc/xen/scripts/block: Writing backend/vbd/11/2050/physical-device fe:39 to xenstore.
Feb 26 10:19:08 poseidon logger: /etc/xen/scripts/block: Writing backend/vbd/11/2050/hotplug-status connected to xenstore.
Feb 26 10:19:09 poseidon logger: /etc/xen/scripts/block: Writing backend/vbd/11/2049/physical-device fe:38 to xenstore.
Feb 26 10:19:09 poseidon logger: /etc/xen/scripts/block: Writing backend/vbd/11/2049/hotplug-status connected to xenstore.
Feb 26 10:20:47 poseidon kernel: xenbr1: port 2(vif11.0) entering disabled state
Feb 26 10:20:47 poseidon logger: /etc/xen/scripts/vif-bridge: offline XENBUS_PATH=backend/vif/11/0
Feb 26 10:20:47 poseidon kernel: device vif11.0 left promiscuous mode
Feb 26 10:20:47 poseidon kernel: audit(1267201247.214:16): dev=vif11.0 prom=0 old_prom=256 auid=4294967295
Feb 26 10:20:47 poseidon kernel: xenbr1: port 2(vif11.0) entering disabled state
Feb 26 10:20:47 poseidon logger: /etc/xen/scripts/block: remove XENBUS_PATH=backend/vbd/11/2050
Feb 26 10:20:47 poseidon logger: /etc/xen/scripts/block: remove XENBUS_PATH=backend/vbd/11/2049
Feb 26 10:20:47 poseidon logger: /etc/xen/scripts/xen-hotplug-cleanup: XENBUS_PATH=backend/vbd/11/2050
Feb 26 10:20:47 poseidon logger: /etc/xen/scripts/xen-hotplug-cleanup: XENBUS_PATH=backend/vbd/11/2049
Feb 26 10:20:47 poseidon logger: /etc/xen/scripts/vif-bridge: offline XENBUS_PATH=backend/vif/11/1
Feb 26 10:20:53 poseidon logger: /etc/xen/scripts/vif-bridge: online XENBUS_PATH=backend/vif/12/1
Feb 26 10:20:53 poseidon logger: /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/12/2049
Feb 26 10:20:54 poseidon logger: /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/12/2050
Feb 26 10:20:54 poseidon logger: /etc/xen/scripts/vif-bridge: online XENBUS_PATH=backend/vif/12/0
Feb 26 10:21:01 poseidon logger: /etc/xen/scripts/vif-bridge: brctl delif xenbr1 vif11.0 failed
Feb 26 10:21:04 poseidon logger: /etc/xen/scripts/vif-bridge: ifconfig vif11.0 down failed
Feb 26 10:21:05 poseidon logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge offline for vif11.0, bridge xenbr1.
Feb 26 10:21:05 poseidon logger: /etc/xen/scripts/vif-bridge: brctl delif xenbrlan0 vif11.1 failed
Feb 26 10:21:05 poseidon logger: /etc/xen/scripts/vif-bridge: ifconfig vif11.1 down failed
Feb 26 10:21:06 poseidon logger: /etc/xen/scripts/xen-hotplug-cleanup: XENBUS_PATH=backend/vif/11/0



Now, I just can boot xen choosing other network script, otherwise it does not work.

best regards!




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