Date: Mon, 23 Nov 2015 07:30:33 -0800 From: Adrian Chadd <adrian.chadd@gmail.com> To: Hongjiang Zhang <honzhan@microsoft.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: Is it allowed to copy hyper-v drivers from FreeBSD 10 and packed it into FreeBSD 9.2 Message-ID: <CAJ-Vmone_fa8Z1BGn68btfF5iY3kDkn1jDEpisyBHFJeDZgjZA@mail.gmail.com> In-Reply-To: <a3ff0bfe18c64a4cb8fdda778fb58a24@SG2PR3002MB0106.064d.mgd.msft.net> References: <a3ff0bfe18c64a4cb8fdda778fb58a24@SG2PR3002MB0106.064d.mgd.msft.net>
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On 22 November 2015 at 21:58, Hongjiang Zhang <honzhan@microsoft.com> wrote= : > Hi, > > Some people, who used FreeBSD 9.2 and back-port network driver for Hyper-= v from FreeBSD 10, encountered a network issue. They installed 2 VM (FreeBS= D 9.2 with the customized FreeBSD kernel) on Azure. Network went offline ve= ry soon when the big file (~320M byte) is copied from one VM to anther thro= ugh "scp". If TSO is disabled through "sysctl -w net.inet.tcp.tso=3D0", thi= s issue will be alleviated but cannot be eliminated. I did not figure out w= hy. > > I have checked the release notes of FreeBSD 9.2/9.3/10, but did not find = anything which blocked the back-port. It is supposed 9.2 allows the back-po= rted Hyper-v drivers from 10. Is this assumption correct? Hi! It may be something to do with maximum mbufs per packet or some other limit like that. Is there a lot of interest in backporting the latest hyperv driver to 9.2? -a > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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