Re: [Xen-users] PV networking issue in 2.6.38.6 and 2.6.39-rc7

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Sun, May 15, 2011 at 06:41:25PM +0200, Mario wrote:
> On 05/15/2011 06:34 PM, Pasi Kärkkäinen wrote:
>> On Sun, May 15, 2011 at 06:24:11PM +0200, Mario wrote:
>>>
>>>
>>> On 05/15/2011 06:12 PM, Pasi Kärkkäinen wrote:
>>>> On Sun, May 15, 2011 at 06:02:02PM +0200, Mario wrote:
>>>>> On 05/15/2011 05:53 PM, Pasi Kärkkäinen wrote:
>>>>>> On Sun, May 15, 2011 at 02:36:11PM +0200, Mario wrote:
>>>>>>> Hey everyone,
>>>>>>>
>>>>>>> I have been trying to make Xen-4.1.0 work on kernels mentioned in the
>>>>>>> subject, without much sucess. HVM guests are not affected, only PV.
>>>>>>>
>>>>>>
>>>>>> Below you mention gentoo xenlinux patches..
>>>>>>
>>>>>> So please be more specific about which kernel was vanilla (pvops),
>>>>>> and which kernels had some external patches applied..
>>>>>>
>>>>>> -- Pasi
>>>>>>
>>>>>
>>>>> Sorry, both kernels in subject were vanilla from kernel.org, with xen
>>>>> options selected for dom0 usage.
>>>>> I only wanted to point out that networking works if i use kernel patched
>>>>> with rebased gentoo patches.
>>>>> I am talking only about dom0 kernel here, domU kernel does not seem to
>>>>> be the source of the problem.
>>>>>
>>>>
>>>> OK. What kernel is the PV domU running? What Xen version are you using? 
>>>> 4.1 ?
>>>>
>>>> -- Pasi
>>>>
>>>
>>> Well, i have tried following kernels in domU:
>>>
>>> 2.6.31.6 (i got this one from stacklet)
>>> 2.6.37.6-domU
>>> 2.6.33.4-domU
>>
>> Are these pvops/vanilla or with some patches?
>
> Those are pvops/vanilla, no patches.
>
>
>>
>>> 2.6.38.6-xen (dom0 kernel)
>>> 2.6.34.7-xen (dom0 kernel)
>>> 2.6.39-rc7-xen (dom0 kernel)
>>>
>>> None of them made any difference, they were all complaining about vif.
>>> Yeah, I am running Xen 4.1
>>>
>>
>> Are you using xm/xend or xl/libxl toolstack?
>
> I am using xl/libxl with Xen 4.1
>

Ok. Have you tried Jeremy's xen.git xen/stable-2.6.32.x as a dom0 kernel? 
It would be interesting to know if that works for you or not.

-- Pasi

>
>>
>> -- Pasi
>>
>>>
>>>>>
>>>>>>> Error that i see in dmesg on the domU:
>>>>>>> XENBUS: Timeout connecting to device: device/vif/0 (state 1)
>>>>>>>
>>>>>>> ifconfig -a on domU shows MAC address: 00:00:00:00:00:00
>>>>>>>
>>>>>>> dom0 doesn't have any vif/tap interfaces assigned to domU when i do
>>>>>>> brctl show or ifconfig -a
>>>>>>>
>>>>>>> I don't see any errors worth mentioning in /var/log/xen, except mybe
>>>>>>> these two:
>>>>>>>
>>>>>>> /tmp/SBo/xen-4.1.0/tools/ioemu-qemu-xen/hw/xen_blktap.c:628: Init blktap
>>>>>>> pipes
>>>>>>> Could not open /var/run/tap/qemu-read-2
>>>>>>>
>>>>>>> Problem goes away when i boot 2.6.34.7 (it is the last kernel that i
>>>>>>> have built with gentoo rebased patches).
>>>>>>>
>>>>>>> If there is something i can do to help debug this please do let me know.
>>>>>>>
>>>>>>>
>>>>>>> Best regards,
>>>>>>> mario
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Xen-users mailing list
>>>>>>> Xen-users@xxxxxxxxxxxxxxxxxxx
>>>>>>> http://lists.xensource.com/xen-users
>>>>>>
>>>>>> _______________________________________________
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>>>>
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>>
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