[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel f
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram |
Date: |
Tue, 26 Nov 2013 12:17:09 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130923 Thunderbird/17.0.9 |
Il 26/11/2013 12:07, Lei Li ha scritto:
>> Basically, "-incoming" without "-S" is a broken option because of the
>> missing handshake at the end of migration. With "-S" something else
>> (either a human or a program) can check that everything went well and
>> choose whether to restart the source or the destination.
>
> I see, thanks for your explanation. :-)
>
> BTW, do you think we should add such handling to the current migration
> protocol?
I think it's not included by design.
> The whole procedure for page flipping migration is straight forward, and
> the cases of failure I listed are in theory, which never happened at least
> since many times I have tested (except the case you raised above). But I
> agree with you on coupling with postcopy migration to make it more
> reliable, specially for the undetected problems.
The only problem that worries me is failing to load device data (most
likely due to misconfiguration or a bug).
> For this, I am not quite sure I understand it correctly, seems the latest
> update of post copy migration was sent on last Oct, would you please give
> some insights on what else could I do for the coupling with postcopy
> migration?
I don't know the state exactly. Orit and Andrea should know.
> If no, now page flipping is implemented as a migration capability, and it's
> a good shape already as your comments in the previous version. Although it
> still needs a little more time to get the numbers of the new vmsplice,
> I'd to ask your opinion that do you consider it could be merged as an
> experimental version for now?
Yes, that could be useful. I will review the patch as soon as possible.
Paolo
- Re: [Qemu-devel] [PATCH 16/17] migration: adjust migration_thread() process for page flipping, (continued)
[Qemu-devel] [PATCH 17/17] hmp: better format for info migrate_capabilities, Lei Li, 2013/11/21
Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram, Daniel P. Berrange, 2013/11/21
- Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram, Lei Li, 2013/11/22
- Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram, Paolo Bonzini, 2013/11/22
- Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram, Lei Li, 2013/11/25
- Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram, Paolo Bonzini, 2013/11/25
- Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram, Lei Li, 2013/11/26
- Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram,
Paolo Bonzini <=
- Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram, Andrea Arcangeli, 2013/11/27
Re: [Qemu-devel] [PATCH 0/17 v3] Localhost migration with side channel for ram, Daniel P. Berrange, 2013/11/22