From owner-freebsd-xen@freebsd.org Wed Sep 9 12:24:01 2015 Return-Path: Delivered-To: freebsd-xen@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1F93BA00C5A for ; Wed, 9 Sep 2015 12:24:01 +0000 (UTC) (envelope-from kpielorz_lst@tdx.co.uk) Received: from smtp.krpservers.com (smtp.krpservers.com [62.13.128.145]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.krpservers.com", Issuer "RapidSSL SHA256 CA - G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id BA113188C for ; Wed, 9 Sep 2015 12:24:00 +0000 (UTC) (envelope-from kpielorz_lst@tdx.co.uk) Received: from [10.12.30.106] (vpn01-01.tdx.co.uk [62.13.130.213] (may be forged)) (authenticated bits=0) by smtp.krpservers.com (8.14.9/8.14.9) with ESMTP id t89CNG4n080885 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 9 Sep 2015 13:23:18 +0100 (BST) (envelope-from kpielorz_lst@tdx.co.uk) Date: Wed, 09 Sep 2015 13:23:38 +0100 From: Karl Pielorz To: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= , Adam McDougall , freebsd-xen@freebsd.org Subject: Re: XenServer 6.5(SP1) - HVM 're0: watchdog timeout' errors... Message-ID: In-Reply-To: <55EFF61A.3020409@citrix.com> References: <9CC4073DE17E3C8BD01EF7D3@[10.12.30.106]> <55EDA470.1000007@citrix.com> <55EDC55B.8000004@egr.msu.edu> <762F895FF087C3BBB6DB94DA@[10.12.30.106]> <55EFF61A.3020409@citrix.com> X-Mailer: Mulberry/4.0.8 (Win32) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Sep 2015 12:24:01 -0000 --On 09 September 2015 11:04 +0200 Roger Pau Monn=C3=A9 = =20 wrote: > In the meantime, I have the following crappy patch to FreeBSD if_re > driver, which should disable the watchdog (I have not even compile > tested this). fyi - The patch stops the 'watchdog timeout' errors - but the NIC just=20 'dies' after the live migrate (i.e. same as before, but no errors logged). VirtIO (vtnet) so far seems to work for migrates, and work for routing=20 traffic to other DomU guests - so I'm continuing to test that now as a=20 workaround (i.e. test with OpenVPN etc.) The only thing I've noticed with it is that established TCP sessions=20 'through the DomU' tend to die during the migrate (i.e. the DomU 'lands' at = the destination node - but any transfers in progress stall - there's a=20 50/50 chance they recover) - but if I migrate the Windows DomU that's=20 actually got the download in progress, the session stays up - hence more=20 testing needed. -Karl