From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34042) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c6b0S-0006xj-JG for qemu-devel@nongnu.org; Tue, 15 Nov 2016 05:30:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c6b0N-0002fR-Mr for qemu-devel@nongnu.org; Tue, 15 Nov 2016 05:30:24 -0500 Received: from mx1.redhat.com ([209.132.183.28]:59928) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c6b0N-0002f0-Gu for qemu-devel@nongnu.org; Tue, 15 Nov 2016 05:30:19 -0500 Date: Tue, 15 Nov 2016 10:30:14 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20161115103014.GE2038@work-vm> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] Qemu 2.6 => Qemu 2.7 migration: error while loading state for instance 0x0 of device '0000:00:03.0/virtio-balloon' List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Priebe - Profihost AG Cc: qemu-devel , stefanha@redhat.com, lprosek@redhat.com * Stefan Priebe - Profihost AG (s.priebe@profihost.ag) wrote: > Hello, > > today i did a first live migration from Qemu 2.6.2 to Qemu 2.7.0. The VM > is running windows and virtio-balloon and with machine type pc-i440fx-2.5. > > The output of the target qemu process was: > kvm_apic_post_load: Yeh > kvm_apic_post_load: Yeh > kvm_apic_post_load: Yeh > kvm_apic_post_load: Yeh > kvm: VQ 2 size 0x80 < last_avail_idx 0x1 - used_idx 0x4 > kvm: error while loading state for instance 0x0 of device > '0000:00:03.0/virtio-balloon' > kvm: load of migration failed: Operation not permitted Yes that's a known bug; only seems to affect windows guests, and I believe doesn't even need to cross versions. There's a bunch of fixes that Stefan applied to virtio code that I think fix this; I see that he cc'd qemu-stable. I think it's 4b7f91ed, but I'm not sure if there are others needed. Dave > > Greets, > Stefan > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK