From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Tejun Heo <tj@kernel.org>
Cc: Pavel Emelyanov <xemul@parallels.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andrey Vagin <avagin@parallels.com>,
James Bottomley <jbottomley@parallels.com>,
Glauber Costa <glommer@parallels.com>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>,
Dave Hansen <dave@linux.vnet.ibm.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Daniel Lezcano <dlezcano@fr.ibm.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Oleg Nesterov <oleg@redhat.com>
Subject: Re: [patch 5/5] elf: Add support for loading ET_CKPT files
Date: Wed, 19 Oct 2011 23:56:32 +0400 [thread overview]
Message-ID: <20111019195632.GB14464@moon> (raw)
In-Reply-To: <20111019182228.GJ25124@google.com>
On Wed, Oct 19, 2011 at 11:22:28AM -0700, Tejun Heo wrote:
> Hello, Pavel.
>
> On Wed, Oct 19, 2011 at 01:03:17PM +0400, Pavel Emelyanov wrote:
> > > I don't think this is a good idea. We already have most of interface
> > > necessary for restoring task state and there's no need to put it into
> > > the kernel as one piece. If there's something which can't be done
> > > from userland using existing interfaces, let's please discuss what
> > > they are and whether they can be resolved differently first.
> >
> > The rest API we will require will look too special-purpose (like Cyrill
> > mentioned the ability to set the mm's fields such as start_code, etc).
>
> I find that quite difficult to agree with. We're talking about some
> minor additions to prctl against updating exec path to do something it
> was never designed to do + new binary format.
Tejun, regardless the mm_struct entries, what about mapping vdso pages at the
place they had on snapshot time? How would we handle them?
Cyrill
next prev parent reply other threads:[~2011-10-19 19:56 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-14 11:04 [patch 0/5] [RFC] Checkpoint/restore and Elf extension Cyrill Gorcunov
2011-10-14 11:04 ` [patch 1/5] proc: Introduce the Children: line in /proc/<pid>/status Cyrill Gorcunov
2011-10-14 16:36 ` Tejun Heo
2011-10-14 11:04 ` [patch 2/5] fs: Add do_close helper Cyrill Gorcunov
2011-10-14 11:04 ` [patch 3/5] fs, proc: Add /proc/$pid/tls entry Cyrill Gorcunov
2011-10-14 16:40 ` Tejun Heo
2011-10-14 16:43 ` Cyrill Gorcunov
2011-10-14 11:04 ` [patch 4/5] fs, proc: Add start_data, end_data, start_brk members to /proc/$pid/stat Cyrill Gorcunov
2011-10-14 11:04 ` [patch 5/5] elf: Add support for loading ET_CKPT files Cyrill Gorcunov
2011-10-14 17:10 ` Tejun Heo
2011-10-14 17:33 ` Tejun Heo
2011-10-19 9:03 ` Pavel Emelyanov
2011-10-19 18:22 ` Tejun Heo
2011-10-19 18:49 ` Cyrill Gorcunov
2011-10-19 18:52 ` Cyrill Gorcunov
2011-10-19 18:53 ` Tejun Heo
2011-10-19 19:56 ` Cyrill Gorcunov [this message]
2011-10-21 18:26 ` Tejun Heo
2011-10-21 18:36 ` Cyrill Gorcunov
2011-10-21 18:42 ` Cyrill Gorcunov
2011-10-21 18:48 ` Tejun Heo
2011-10-21 18:53 ` Cyrill Gorcunov
2011-10-22 6:34 ` Pavel Emelyanov
2011-10-20 8:33 ` Pavel Emelyanov
2011-10-20 15:56 ` Tejun Heo
2011-10-20 16:04 ` Cyrill Gorcunov
2011-10-20 17:30 ` Pavel Emelyanov
2011-10-15 18:59 ` Cyrill Gorcunov
2011-10-21 11:06 ` Glauber Costa
2011-10-21 11:20 ` Cyrill Gorcunov
2011-10-21 11:21 ` Glauber Costa
2011-10-21 11:35 ` Cyrill Gorcunov
2011-10-22 16:49 ` Dan Merillat
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