From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46883) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eD0m0-0004Jy-6v for qemu-devel@nongnu.org; Thu, 09 Nov 2017 23:18:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eD0lx-0007Td-2R for qemu-devel@nongnu.org; Thu, 09 Nov 2017 23:18:32 -0500 Received: from mx1.redhat.com ([209.132.183.28]:59528) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eD0lw-0007T2-ST for qemu-devel@nongnu.org; Thu, 09 Nov 2017 23:18:28 -0500 From: Jason Wang References: <1b862cf2-2fee-3243-cb54-2780ace6f25b@profihost.ag> <971cc10f-7930-9830-0528-27e8faac7282@redhat.com> <748c4d0d-f84b-303d-f9a6-bafa6037d669@profihost.ag> <4c2913e2-5946-47db-cced-a5702538bc3b@profihost.ag> <9c8673a5-faf7-ca9c-27d3-398df4223d6a@redhat.com> <54326bae-831d-dfb8-151e-534d3a100c2c@redhat.com> <61b97624-bd55-655f-f8e2-ea1699c25d51@redhat.com> <34a1bec2-403e-8de1-d3dd-661865c6dceb@redhat.com> Message-ID: Date: Fri, 10 Nov 2017 13:18:20 +0900 MIME-Version: 1.0 In-Reply-To: <34a1bec2-403e-8de1-d3dd-661865c6dceb@redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] kvm: virtio-net: saved image requires TUN_F_UFO support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini , Stefan Priebe - Profihost AG , qemu-devel On 2017=E5=B9=B411=E6=9C=8808=E6=97=A5 19:22, Jason Wang wrote: > > > On 2017=E5=B9=B411=E6=9C=8808=E6=97=A5 18:46, Paolo Bonzini wrote: >> On 08/11/2017 09:21, Jason Wang wrote: >>> >>> On 2017=E5=B9=B411=E6=9C=8808=E6=97=A5 17:05, Stefan Priebe - Profiho= st AG wrote: >>>> Am 08.11.2017 um 08:54 schrieb Jason Wang: >>>>> On 2017=E5=B9=B411=E6=9C=8808=E6=97=A5 15:41, Stefan Priebe - Profi= host AG wrote: >>>>>> Hi Paolo, >>>>>> >>>>>> Am 06.11.2017 um 12:27 schrieb Paolo Bonzini: >>>>>>> On 06/11/2017 12:09, Stefan Priebe - Profihost AG wrote: >>>>>>>> HI Paolo, >>>>>>>> >>>>>>>> could this patchset be related? >>>>>>> Uh oh, yes it should.=C2=A0 Jason, any ways to fix it?=C2=A0 I su= ppose we >>>>>>> need to >>>>>>> disable UFO in the newest machine types, but do we also have to d= o >>>>>>> (software) UFO in vhost-net and QEMU for migration compatibility? >>>>>> Any news on this? >>>>>> >>>>>> Greets, >>>>> Since we probe UFO support, it will be disabled automatically on=20 >>>>> device >>>>> startup. >>>>> >>>>> For the issue of migration, I think the only way is trying to fix=20 >>>>> it in >>>>> kernel. >>>> But 4.14 is around the corner and the patchset is already included. >>>> Shouldn't this get fixed before 4.14 is released? >>> We will try to seek a solution as soon as possible. If we can't catch >>> 4.14, we will do it for stable for sure. >> Jason, can you write to netdev and Cc Linus and me? >> >> Thanks, >> >> Paolo > > Paolo, see this https://www.spinics.net/lists/netdev/msg465454.html > > Just notice this today since I'm not on the cc list. > > Thanks > > An update: After some discussions on netdev, we will try to bring UFO back=20 partially for just TAP. Willem promise to fix this. 4.14 is too late=20 consider the fix is not trivial, it will go through stable tree. Thanks