Date: Tue, 7 Jul 2015 16:55:39 +0300 From: Pavel Timofeev <timp87@gmail.com> To: Wei Hu <weh@microsoft.com> Cc: "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>, "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org> Subject: Re: MS DNS doesn't answer to CURRENT under Hyper-V Message-ID: <CAAoTqfu_pnJbQ=n9K802MJ5jp%2Bh5HbZ7EzUU0Lji1mw3zW448Q@mail.gmail.com> In-Reply-To: <CAAoTqfuDNwU2YZEj2m0UFRTEZYEFAbnvHEg9oQSapi0bbFqovg@mail.gmail.com> References: <CAAoTqftvtQunx%2BWCL4%2BBz-mYSgqCTcGx1aAyemfaz%2B=0ogZuWw@mail.gmail.com> <BY1PR03MB14341E54D68247F7BFAE7504BB920@BY1PR03MB1434.namprd03.prod.outlook.com> <CAAoTqfuDNwU2YZEj2m0UFRTEZYEFAbnvHEg9oQSapi0bbFqovg@mail.gmail.com>
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Wow, r284746 was MFCed to 10 STABLE! I should hurry up! 2015-07-07 16:26 GMT+03:00 Pavel Timofeev <timp87@gmail.com>: > Ok, I'll try r284745 and then r284746 and see what happens. > > 2015-07-07 16:06 GMT+03:00 Wei Hu <weh@microsoft.com>: >>> -----Original Message----- >>> From: owner-freebsd-virtualization@freebsd.org [mailto:owner-freebsd- >>> virtualization@freebsd.org] On Behalf Of Pavel Timofeev >>> Sent: Tuesday, July 7, 2015 7:51 PM >>> To: freebsd-current@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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