From: Peter Maydell <peter.maydell@linaro.org>
To: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: "qemu-ppc@nongnu.org" <qemu-ppc@nongnu.org>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [Qemu-devel] broken incoming migration
Date: Thu, 30 May 2013 11:18:01 +0100 [thread overview]
Message-ID: <CAFEAcA-v+YhU3XBagAbwBWcrW_P8bGV5CM+2QZjX-+pxj2puYA@mail.gmail.com> (raw)
In-Reply-To: <51A7036A.3050407@ozlabs.ru>
On 30 May 2013 08:44, Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
> I found the migration broken on pseries platform, specifically, this patch
> broke it:
>
> f1c72795af573b24a7da5eb52375c9aba8a37972
> migration: do not sent zero pages in bulk stage
>
> The idea is not to send zero pages to the destination guest which is
> expected to have 100% empty RAM.
This just seems like a broken assumption to me. If the migration
protocol is going to skip sending zero pages it should do it by saying
"there's a zero page here" and have the destination memset the
page to zero.
thanks
-- PMM
prev parent reply other threads:[~2013-05-30 10:18 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-30 7:44 [Qemu-devel] broken incoming migration Alexey Kardashevskiy
2013-05-30 7:49 ` Alexey Kardashevskiy
2013-05-30 7:49 ` Paolo Bonzini
2013-05-30 8:18 ` Alexey Kardashevskiy
2013-05-30 9:08 ` Peter Lieven
2013-05-30 9:31 ` Alexey Kardashevskiy
2013-05-30 13:00 ` Paolo Bonzini
2013-05-30 13:38 ` Alexey Kardashevskiy
2013-05-30 14:08 ` Paolo Bonzini
2013-05-30 14:38 ` Peter Lieven
2013-05-30 14:41 ` Paolo Bonzini
2013-06-04 13:52 ` Peter Lieven
2013-06-04 14:14 ` Paolo Bonzini
2013-06-04 14:38 ` Peter Lieven
2013-06-04 14:40 ` Paolo Bonzini
2013-06-04 14:48 ` Peter Lieven
2013-06-04 15:17 ` Paolo Bonzini
2013-06-04 19:15 ` Peter Lieven
2013-06-05 3:37 ` Alexey Kardashevskiy
2013-06-05 6:09 ` Peter Lieven
2013-06-09 4:12 ` liu ping fan
2013-06-09 7:22 ` Peter Lieven
2013-06-04 15:10 ` Peter Lieven
2013-06-08 8:27 ` Wenchao Xia
2013-06-08 8:30 ` Alexey Kardashevskiy
2013-06-09 2:16 ` Wenchao Xia
2013-06-09 2:34 ` Alexey Kardashevskiy
2013-06-09 2:52 ` [Qemu-devel] [Qemu-ppc] " Benjamin Herrenschmidt
2013-06-09 3:01 ` Alexey Kardashevskiy
2013-06-09 3:01 ` [Qemu-devel] " Wenchao Xia
2013-06-09 3:09 ` Alexey Kardashevskiy
2013-06-09 3:31 ` Wenchao Xia
2013-06-09 7:27 ` Peter Lieven
2013-06-10 6:39 ` Alexey Kardashevskiy
2013-06-10 6:50 ` Peter Lieven
2013-06-10 6:55 ` Alexey Kardashevskiy
2013-06-10 8:44 ` Peter Lieven
2013-06-10 9:10 ` Alexey Kardashevskiy
2013-06-10 9:33 ` [Qemu-devel] [Qemu-ppc] " Benjamin Herrenschmidt
2013-06-10 9:42 ` Peter Lieven
2013-06-09 2:53 ` Benjamin Herrenschmidt
2013-06-12 14:00 ` Paolo Bonzini
2013-06-12 14:11 ` Benjamin Herrenschmidt
2013-06-12 20:10 ` Paolo Bonzini
2013-06-13 2:41 ` Wenchao Xia
2013-06-03 10:04 ` [Qemu-devel] " Alexey Kardashevskiy
2013-06-04 10:56 ` Peter Lieven
2013-06-08 8:24 ` Wenchao Xia
2013-05-30 10:18 ` Peter Maydell [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAFEAcA-v+YhU3XBagAbwBWcrW_P8bGV5CM+2QZjX-+pxj2puYA@mail.gmail.com \
--to=peter.maydell@linaro.org \
--cc=aik@ozlabs.ru \
--cc=david@gibson.dropbear.id.au \
--cc=qemu-devel@nongnu.org \
--cc=qemu-ppc@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.