From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:60148) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gtF9d-0002V6-0a for qemu-devel@nongnu.org; Mon, 11 Feb 2019 12:14:02 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gtEv9-0007KI-KM for qemu-devel@nongnu.org; Mon, 11 Feb 2019 11:59:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54984) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gtEv8-0007Bj-93 for qemu-devel@nongnu.org; Mon, 11 Feb 2019 11:59:03 -0500 Date: Mon, 11 Feb 2019 16:58:19 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20190211165756.GN2627@work-vm> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] virtio-blk io bar size changed List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, changpeng.liu@intel.com, mst@redhat.com, stefanha@redhat.com Cc: ldoktor@redhat.com Hi, Luk=C3=A1=C5=A1 reported that there's a migration breakage between 3.1 = and current head with virtio-blk; it looks like the io bar changes from 64 to 128 bytes and my bisect suggests it's: commit caa1ee43131c060347b32893abd41fe4865eaa2e (HEAD, refs/bisect/bad) Author: Changpeng Liu Date: Wed Jan 16 13:19:30 2019 +0800 vhost-user-blk: add discard/write zeroes features support How do we fix that? Dave -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK