From: Stanislav Kinsbursky <skinsbursky@parallels.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "serge.hallyn@canonical.com" <serge.hallyn@canonical.com>,
"criu@openvz.org" <criu@openvz.org>,
"lucas.demarchi@profusion.mobi" <lucas.demarchi@profusion.mobi>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"cmetcalf@tilera.com" <cmetcalf@tilera.com>,
"dhowells@redhat.com" <dhowells@redhat.com>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH 2/2] IPC: message queue stealing feature introduced
Date: Thu, 05 Apr 2012 14:53:55 +0400 [thread overview]
Message-ID: <4F7D79C3.1010306@parallels.com> (raw)
In-Reply-To: <20120404161224.dea67733.akpm@linux-foundation.org>
05.04.2012 03:12, Andrew Morton пишет:
>
> I'd be a bit more comfortable if there was some sign that other c/r
> developers have reviewed and tested this and have successfully used it
> in c/r operation testing?
>
We have a user-space test (part of our regression testing test suite) for this
functionality. Thus we run this test very ofter.
> We've been trying to isolate the c/r-specific functions inside #ifdef
> CONFIG_CHECKPOINT_RESTORE, but this patch doesn't do that. I have been
> encouraging this isolation so that people who aren't using c/r don't
> have to carry the overhead it adds and so that we can more easily hunt
> down and remove everything if the entire c/r project doesn't work out
> successfully.
>
Sorry. I'll add this ifdef's and send rebased patch set once more.
> This patch modifies the sys_msgrcv() API and so we should update the
> manpage for that syscall. Please work with Michael on this.
>
Sure.
> What does all the compat fiddling actually do? I guess it's needed for
> checkpoint and restore of 32-bit userspace on 64-bit kernels? Does c/r
> as a whole support that? It should. How well tested is this?
>
CRIU doesn't support 32-bit processes migration yet. But we are going to add
this support in future.
--
Best regards,
Stanislav Kinsbursky
next prev parent reply other threads:[~2012-04-05 10:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-15 16:54 [PATCH 0/2] IPC: message queue checkpoint support Stanislav Kinsbursky
2012-02-15 16:54 ` [PATCH 1/2] IPC: message queue receive cleanup Stanislav Kinsbursky
2012-04-04 23:05 ` Andrew Morton
2012-04-04 23:39 ` Chris Metcalf
2012-02-15 16:54 ` [PATCH 2/2] IPC: message queue stealing feature introduced Stanislav Kinsbursky
2012-04-04 23:12 ` Andrew Morton
2012-04-04 23:50 ` Michael Kerrisk (man-pages)
2012-04-04 23:59 ` Michael Kerrisk
2012-04-05 11:42 ` Stanislav Kinsbursky
2012-04-05 10:53 ` Stanislav Kinsbursky [this message]
2012-03-05 13:04 ` [CRIU] [PATCH 0/2] IPC: message queue checkpoint support Kinsbursky Stanislav
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=4F7D79C3.1010306@parallels.com \
--to=skinsbursky@parallels.com \
--cc=akpm@linux-foundation.org \
--cc=arnd@arndb.de \
--cc=cmetcalf@tilera.com \
--cc=criu@openvz.org \
--cc=dhowells@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=lucas.demarchi@profusion.mobi \
--cc=mtk.manpages@gmail.com \
--cc=serge.hallyn@canonical.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox