From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45268) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YL7fJ-0002UB-5e for qemu-devel@nongnu.org; Tue, 10 Feb 2015 05:03:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YL7fE-0008AJ-3W for qemu-devel@nongnu.org; Tue, 10 Feb 2015 05:03:33 -0500 Received: from mx-v6.kamp.de ([2a02:248:0:51::16]:35380 helo=mx01.kamp.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YL7fD-00087O-P9 for qemu-devel@nongnu.org; Tue, 10 Feb 2015 05:03:28 -0500 Message-ID: <54D9D765.4040805@kamp.de> Date: Tue, 10 Feb 2015 11:03:17 +0100 From: Peter Lieven MIME-Version: 1.0 References: <54D9CEC9.9040902@kamp.de> <54D9D421.10907@redhat.com> In-Reply-To: <54D9D421.10907@redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] kvmclock_current_nsec: Assertion `time.tsc_timestamp <= migration_tsc' List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini , "qemu-devel@nongnu.org" Cc: mtosatti@redhat.com, agraf@suse.de Am 10.02.2015 um 10:49 schrieb Paolo Bonzini: > > On 10/02/2015 10:26, Peter Lieven wrote: >> Hi, >> >> while migrating vServers from 2.1.0 to 2.2.0 I see the following >> assertion that seems to have >> been introduced between 2.1.0 and 2.2.0 trigger on the destination. This >> happens in a serious >> amount of cases. In most cases it works flawlessly on the second attempt >> to migrate the vServer >> (same source and same destination). >> >> Any hints how to debug the root cause? > How can anyone help without knowing anything about your configuration? :) My hope was that anyone has observed this post 2.2.0 already and there is a fix available ;-) Can you indicate what info would be helpful debugging this? Cmdline is: /usr/bin/qemu-2.2.0 -enable-kvm -M pc-i440fx-2.1 -nodefaults -netdev type=tap,id=guest19,script=no,downscript=no,ifname=tap19,vnet_hdr -device virtio-net-pci,netdev=guest19,mac=52:54:00:80:00:55 -netdev type=tap,id=guest20,script=no,downscript=no,ifname=tap20,vnet_hdr -device virtio-net-pci,netdev=guest20,mac=52:54:00:80:00:6f -netdev type=tap,id=guest21,script=no,downscript=no,ifname=tap21,vnet_hdr -device virtio-net-pci,netdev=guest21,mac=52:54:00:80:00:75 -serial null -parallel null -m 496 -monitor tcp:0:4011,server,nowait -vnc :11 -qmp tcp:0:3011,server,nowait -name 'gw-5000123' -boot order=nc,menu=on -drive index=2,media=cdrom,if=ide,cache=unsafe,aio=native,readonly=on -k de -incoming tcp:0:5011 -pidfile /var/run/qemu/vm-115.pid -mem-path /hugepages -mem-prealloc -rtc base=utc -usb -usbdevice tablet -no-hpet -vga vmware -cpu qemu64 Linux guest kernels observed so far: 3.2.0 3.13 Thanks, Peter