Date: Mon, 17 Feb 2014 09:46:20 +0000 From: Karl Pielorz <kpielorz_lst@tdx.co.uk> To: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com>, freebsd-xen@freebsd.org Subject: Re: Xen PV Networking issue - disable PV NIC in XENHVM FreeBSD? Message-ID: <A525C8B38681D6FA6F5C4AE4@Mail-PC.tdx.co.uk> In-Reply-To: <52FA5BEA.6030307@citrix.com> References: <D280F84BE886E8D6110B93D0@study64.tdx.co.uk> <52F8FE87.1010705@citrix.com> <72C34BC121BD5A0FBDAEFA37@Mail-PC.tdx.co.uk> <52FA5BEA.6030307@citrix.com>
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--On 11 February 2014 18:20 +0100 Roger Pau Monn=C3=A9 = <roger.pau@citrix.com>=20 wrote: > You could try to disable the following: > > ifconfig xnX -rxcsum -txcsum -tso4 -lro As a follow-up to this, using: ifconfig xnX -rxcsum -txcsum Does actually fix the problem. I finally got a block of time to go through=20 all this stuff again the other day [it's amazing what difference actually=20 having a decent chunk of uninterrupted time makes!] You do need to be careful when setting this - as at one point, it seemed to = cause some kind of issue that may have flooded the network (if it did -=20 this would be the second time we've seen a XenServer DomU flood things by=20 jabbering the same packet over, and over). -Karl
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