[Xen-users] [SPAM] xen vm network not working

To:	xen-users@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-users] [SPAM] xen vm network not working
From:	Wang Binbin <binbin.b.wang@xxxxxxxxx>
Date:	Tue, 26 Oct 2010 13:53:06 +0800
Delivery-date:	Wed, 10 Nov 2010 10:10:09 -0800
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Hi All

I just encounter a problem, the xen vm network suddenly does not work even though no one change the configuration. and I restart the network service, it still does not work.

After rebooting the VM, network works well. and I find the xen host have below log in /var/log/messages:

Oct 23 20:22:08 app_xen5 kernel: xenbr0: port 5(vif6.0) entering disabled state

Oct 23 20:22:08 app_xen5 kernel: device vif6.0 left promiscuous mode

Oct 23 20:22:08 app_xen5 kernel: xenbr0: port 5(vif6.0) entering disabled state

Oct 23 20:22:34 app_xen5 kernel: device vif9.0 entered promiscuous mode

Oct 23 20:22:34 app_xen5 kernel: ADDRCONF(NETDEV_UP): vif9.0: link is not ready

Oct 23 20:22:38 app_xen5 kernel: blkback: ring-ref 8, event-channel 27, protocol 1 (x86_32-abi)

Oct 23 20:22:41 app_xen5 kernel: ADDRCONF(NETDEV_CHANGE): vif9.0: link becomes ready

Oct 23 20:22:41 app_xen5 kernel: xenbr0: topology change detected, propagating

Oct 23 20:22:41 app_xen5 kernel: xenbr0: port 5(vif9.0) entering forwarding state

Xen version is as below:

host : app_xen5

release : 2.6.18-128.el5xen

version : #1 SMP Wed Dec 17 12:22:24 EST 2008

machine : i686

nr_cpus : 16

nr_nodes : 1

sockets_per_node : 2

cores_per_socket : 4

threads_per_core : 2

cpu_mhz : 2400

hw_caps : bfebfbff:28100000:00000000:00000140:009ce3bd:00000000:00000001

total_memory : 12279

free_memory : 0

node_to_cpu : node0:0-15

xen_major : 3

xen_minor : 1

xen_extra : .2-128.el5

xen_caps : xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p

xen_pagesize : 4096

platform_params : virt_start=0xf5800000

xen_changeset : unavailable

cc_compiler : gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)

cc_compile_by : mockbuild

cc_compile_domain : redhat.com

cc_compile_date : Wed Dec 17 11:38:33 EST 2008

xend_config_format : 2

Could anyone tell me the reason why the vm network suddenly could not work? thanks in advance.

Wang Binbin

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[Xen-users] [SPAM] xen vm network not working