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I solve this problem by blacklist bridge module..

I refer this post http://dev.opennebula.org/issues/1688, which means I can
only use brcompat in ubuntu 12.04.

but the default bridge module is the built-in "bridge" module, so I
blacklist it and restart openvswitch, it works.


On Tue, Apr 2, 2013 at 2:46 PM, Liu Wenmao <marvelliu at gmail.com> wrote:

> hi Aaron:
>
> thanks anyway..
>
> it's really a weird problem
>
>
> On Tue, Apr 2, 2013 at 2:29 PM, Aaron Rosen <arosen at nicira.com> wrote:
>
>> I've not encountered these errors. If you didn't drop the list perhaps
>> someone else could help you....
>>
>>
>> On Mon, Apr 1, 2013 at 11:15 PM, Liu Wenmao <marvelliu at gmail.com> wrote:
>>
>>> After I uncomment user and group in the qemu.conf, the error remains the
>>> same.
>>>
>>> My linux release is Ubuntu 12.04LTS:
>>>
>>> root at node1:~# dpkg -l|grep libvirt
>>> ii  libvirt-bin                                  0.9.8-2ubuntu17.7
>>>                    programs for the libvirt library
>>> ii  libvirt0                                     0.9.8-2ubuntu17.7
>>>                    library for interfacing with different virtualization
>>> systems
>>> ii  python-libvirt                               0.9.8-2ubuntu17.7
>>>                    libvirt Python bindings
>>>
>>> root at node1:~# tail /var/log/libvirt/libvirtd.log
>>> 2013-04-02 03:47:59.159+0000: 12796: info : libvirt version: 0.9.8
>>> 2013-04-02 03:47:59.159+0000: 12796: error : virNetDevBridgeAddPort:309
>>> : Unable to add bridge br-int port tapcc380352-8b: Operation not supported
>>> 2013-04-02 03:49:26.103+0000: 12793: error : virNetDevBridgeAddPort:309
>>> : Unable to add bridge br-int port tapd941ef5a-f1: Operation not supported
>>> 2013-04-02 05:01:12.223+0000: 30917: info : libvirt version: 0.9.8
>>> 2013-04-02 05:01:12.223+0000: 30917: error : virNetSocketReadWire:996 :
>>> End of file while reading data: Input/output error
>>> 2013-04-02 05:01:38.735+0000: 30921: error : virNetDevBridgeAddPort:309
>>> : Unable to add bridge br-int port tap8317bc2f-53: Operation not supported
>>> 2013-04-02 05:03:08.780+0000: 30917: error : virNetSocketReadWire:996 :
>>> End of file while reading data: Input/output error
>>> 2013-04-02 06:07:12.279+0000: 18978: info : libvirt version: 0.9.8
>>> 2013-04-02 06:07:12.279+0000: 18978: error : virNetSocketReadWire:996 :
>>> End of file while reading data: Input/output error
>>> 2013-04-02 06:07:42.519+0000: 18980: error : virNetDevBridgeAddPort:309
>>> : Unable to add bridge br-int port tapfcbc59a4-96: Operation not supported
>>>
>>>
>>>
>>> On Tue, Apr 2, 2013 at 1:05 PM, Aaron Rosen <arosen at nicira.com> wrote:
>>>
>>>> I believe that with older versions of libvirt you need to uncomment the
>>>> following lines in /etc/libvirt/qemu.conf
>>>>
>>>> # The user ID for QEMU processes run by the system instance.
>>>> user = "root"
>>>>
>>>> # The group ID for QEMU processes run by the system instance.
>>>> group = "root"
>>>>
>>>>
>>>> I'd also check what's in /var/log/libvirt/libvirtd.log
>>>>
>>>
>>>
>>
>
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