Wow, r284746 was MFCed to 10 STABLE!
I should hurry up!

2015-07-07 16:26 GMT+03:00 Pavel Timofeev <tim...@gmail.com>:
> Ok, I'll try r284745 and then r284746 and see what happens.
>
> 2015-07-07 16:06 GMT+03:00 Wei Hu <w...@microsoft.com>:
>>> -----Original Message-----
>>> From: owner-freebsd-virtualizat...@freebsd.org [mailto:owner-freebsd-
>>> virtualizat...@freebsd.org] On Behalf Of Pavel Timofeev
>>> Sent: Tuesday, July 7, 2015 7:51 PM
>>> To: freebsd-curr...@freebsd.org; freebsd-virtualization@freebsd.org
>>> Subject: MS DNS doesn't answer to CURRENT under Hyper-V
>>>
>>> Hi!
>>> I have a test virtual machine which runs CURRENT under Hyper-V. It's
>>> amd64 r285198 now.
>>> It can't get any response from MS DNS server. Well, it could two or three
>>> weeks ago, but after upgrade it's not able to do it anymore.
>>> Google DNS answers without problems meanwhile (sic!).
>>>
>>> What I do:
>>> # host google.ru 192.168.25.3
>>> I see that MS DNS (192.168.25.3) server receives these packets, but ignores
>>> them.
>>> And no matter how my system asks MS DNS. Every daemon can't get
>>> response too.
>>>
>>> I know that nothing was changed in MS DNS server. No doubt.
>>> Then I tried different available CURRENT snapshot ISOs.
>>>
>>> FreeBSD-11.0-CURRENT-amd64-20150630-r284969-disc1.iso - MS DNS does
>>> not answer.
>>>
>>> FreeBSD-11.0-CURRENT-amd64-20150625-r284814-disc1.iso - MS DNS does
>>> not answer.
>>>
>>> FreeBSD-11.0-CURRENT-amd64-20150618-r284544-disc1.iso - MS DNS
>>> answers!
>>>
>>> So something was committed to CURRENT between 20150618 and 20150625.
>>> This something ruins communication with MS DNS.
>>>
>> There was a commit for Hyper-V TSO and checksum offloading support  
>> (r284746) on
>> June 24th. I think this commit is the cause. Can you verify the MS DNS 
>> behavior between
>> The builds of June 23rd and 24th? I will take a look of this issue tomorrow.
>>
>> Thanks,
>> Wei
>>
>>
>>
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