From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Yang Hongyang <yanghy@cn.fujitsu.com>, xen-devel@lists.xen.org
Cc: rshriram@cs.ubc.ca, Ian.Jackson@eu.citrix.com, Ian.Campbell@citrix.com
Subject: Re: [RFC PATCH 3/3] remus: adjust x86 pv restore to support remus
Date: Wed, 9 Jul 2014 12:26:24 +0100 [thread overview]
Message-ID: <53BD26E0.9030406@citrix.com> (raw)
In-Reply-To: <53BD2477.1070505@citrix.com>
On 09/07/14 12:16, Andrew Cooper wrote:
> On 09/07/14 08:47, Yang Hongyang wrote:
>> cache vcpu context when restore, and set context when stream
>> complete.
> Can you explain why this is needed? I can't see why it should be required.
Actually, as part of reviewing this I have worked out why this is needed.
It is a latent bug in the migration v2 series with all the x86 pv vcpu
state (not just the basic state), which is not triggered by a well
behaved sender.
I shall fix it up in the base series.
~Andrew
next prev parent reply other threads:[~2014-07-09 11:26 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-09 7:47 [RFC PATCH 0/3] Remus: add remus support for migration v2 Yang Hongyang
2014-07-09 7:47 ` [RFC PATCH 1/3] remus: add a bool var to indicate checkpointed stream Yang Hongyang
2014-07-09 9:45 ` Andrew Cooper
2014-07-09 9:53 ` Hongyang Yang
2014-07-09 7:47 ` [RFC PATCH 2/3] remus: implement remus checkpoint in v2 save Yang Hongyang
2014-07-09 10:53 ` Andrew Cooper
2014-07-10 3:25 ` Hongyang Yang
2014-07-10 8:49 ` Ian Campbell
2014-07-10 9:24 ` Andrew Cooper
2014-07-16 15:22 ` Shriram Rajagopalan
2014-07-16 15:38 ` Andrew Cooper
2014-07-16 16:02 ` Shriram Rajagopalan
2014-07-16 16:33 ` Andrew Cooper
2014-07-09 7:47 ` [RFC PATCH 3/3] remus: adjust x86 pv restore to support remus Yang Hongyang
2014-07-09 11:16 ` Andrew Cooper
2014-07-09 11:26 ` Andrew Cooper [this message]
2014-07-10 3:30 ` Hongyang Yang
2014-07-10 9:25 ` Andrew Cooper
2014-07-10 9:32 ` Hongyang Yang
2014-07-10 9:42 ` Andrew Cooper
2014-07-10 9:47 ` Hongyang Yang
2014-07-09 8:53 ` [RFC PATCH 0/3] Remus: add remus support for migration v2 Ian Campbell
2014-07-09 9:56 ` Hongyang Yang
2014-07-09 9:42 ` Andrew Cooper
2014-07-09 10:06 ` Hongyang Yang
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