Date: Mon, 23 Nov 2015 05:58:04 +0000 From: Hongjiang Zhang <honzhan@microsoft.com> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Is it allowed to copy hyper-v drivers from FreeBSD 10 and packed it into FreeBSD 9.2 Message-ID: <a3ff0bfe18c64a4cb8fdda778fb58a24@SG2PR3002MB0106.064d.mgd.msft.net>
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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 (FreeBSD = 9.2 with the customized FreeBSD kernel) on Azure. Network went offline very= soon when the big file (~320M byte) is copied from one VM to anther throug= h "scp". If TSO is disabled through "sysctl -w net.inet.tcp.tso=3D0", this = issue will be alleviated but cannot be eliminated. I did not figure out why= . I have checked the release notes of FreeBSD 9.2/9.3/10, but did not find an= ything which blocked the back-port. It is supposed 9.2 allows the back-port= ed Hyper-v drivers from 10. Is this assumption correct?
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