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Re: [Qemu-devel] [Qemu-stable] Broken live Migration in Qemu

From: Peter Lieven
Subject: Re: [Qemu-devel] [Qemu-stable] Broken live Migration in Qemu
Date: Tue, 7 Jun 2016 09:11:18 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0

Am 06.06.2016 um 18:13 schrieb Stefan Priebe - Profihost AG:
We're most probably seeing the same while migrating a machine running balanceng 
but haven't thought this might be a qemu bug. Instead we're investigating with 
balanceng people.

Waiting for your further results.

This obviously is a regression. It was introduced between v2.4.0 and v2.5.0. I 
can clearly see RARPs being no longer emitted after this commit:

fefe2a78abde932e0f340b21bded2c86def1d242 is the first bad commit
commit fefe2a78abde932e0f340b21bded2c86def1d242
Author: Yang Hongyang <address@hidden>
Date:   Wed Oct 7 11:52:16 2015 +0800

    net: merge qemu_deliver_packet and qemu_deliver_packet_iov

    qemu_deliver_packet_iov already have the compat delivery, we
    can drop qemu_deliver_packet.

    Signed-off-by: Yang Hongyang <address@hidden>
    Signed-off-by: Jason Wang <address@hidden>

I will analyze further.


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