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

[Wang Binbin <binbin.b.wang@xxxxxxxxx>]

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.Â

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

OctÂ23Â20:22:08Âapp_xen5Âkernel:Âxenbr0:ÂportÂ5(vif6.0)ÂenteringÂdisabledÂstate

OctÂ23Â20:22:08Âapp_xen5Âkernel:ÂdeviceÂvif6.0ÂleftÂpromiscuousÂmode

OctÂ23Â20:22:08Âapp_xen5Âkernel:Âxenbr0:ÂportÂ5(vif6.0)ÂenteringÂdisabledÂstate

OctÂ23Â20:22:34Âapp_xen5Âkernel:ÂdeviceÂvif9.0ÂenteredÂpromiscuousÂmode

OctÂ23Â20:22:34Âapp_xen5Âkernel:ÂADDRCONF(NETDEV_UP):Âvif9.0:ÂlinkÂisÂnotÂready

OctÂ23Â20:22:38Âapp_xen5Âkernel:Âblkback:Âring-refÂ8,Âevent-channelÂ27,ÂprotocolÂ1Â(x86_32-abi)

OctÂ23Â20:22:41Âapp_xen5Âkernel:ÂADDRCONF(NETDEV_CHANGE):Âvif9.0:ÂlinkÂbecomesÂready

OctÂ23Â20:22:41Âapp_xen5Âkernel:Âxenbr0:ÂtopologyÂchangeÂdetected,Âpropagating

OctÂ23Â20:22:41Âapp_xen5Âkernel:Âxenbr0:ÂportÂ5(vif9.0)ÂenteringÂforwardingÂstate

Xen version is as below:

host          : app_xen5

release        Â: 2.6.18-128.el5xen

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

machine        Â: i686

nr_cpus        Â: 16

nr_nodes        : 1

sockets_per_node    : 2

cores_per_socket    : 4

threads_per_core    : 2

cpu_mhz        Â: 2400

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

total_memory      : 12279

free_memory      Â: 0

node_to_cpu      Â: node0:0-15

xen_major       Â: 3

xen_minor       Â: 1

xen_extra       Â: .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    Â: virt_start=0xf5800000

xen_changeset     Â: unavailable

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

cc_compile_by     Â: mockbuild

cc_compile_domain   Â: redhat.com

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

xend_config_format   : 2

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

Wang Binbin

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