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Re: [Qemu-devel] [PATCH 00/10] RFCv3: vhost-user: simple reconnection su

From: Marc-André Lureau
Subject: Re: [Qemu-devel] [PATCH 00/10] RFCv3: vhost-user: simple reconnection support
Date: Fri, 13 May 2016 20:30:36 +0200


On Tue, May 10, 2016 at 6:28 PM, Marc-André Lureau <address@hidden> wrote:
> Hi
> ----- Original Message -----
>> On Tue, May 10, 2016 at 06:03:50PM +0200, address@hidden wrote:
>> > From: Marc-André Lureau <address@hidden>
>> >
>> > Hi,
>> >
>> > In a previous series "RFCv2: vhost-user: shutdown and reconnection", I
>> > proposed to add a new slave request to handle graceful shutdown, for
>> > both qemu configuration, server or client, while keeping the guest
>> > running with link down status.
>> OK so I would say patches 1-4 are bugfixes, looks like they
>> can be Cc stable even?
> 4 is being used by 5 and 10.
> 2-3 are only for testing.
> 4-8 are nice to have as they avoid obvious problems/crashes when handling 
> disconnected state and add basic reconnection checks.
> 9 was already considered for stable by Eric in a previous series
> 10 would be good to have if 1 is accepted, to check the minimum works as 
> expected

FYI, I have a follow up series (~20 patches,
https://github.com/elmarco/qemu/tree/vhost-user-reconnect) doing
mostly cleanups and extra checks for disconnection at run time. In
particular, it should avoid some obvious crashers/asserts, and
prevents qemu from running as long the initial vhost_user_start()
didn't succeed (so initial flags are set). I would like to know how to
proceed with the follow-up: should I resend the whole series or should
we review/merge this rfc first (even though it is known to be
incomplete in many disconnect cases that the follow up fixes).


Marc-André Lureau

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