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From: Andrew Morton <akpm@linux-foundation.org>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: nigel@nigel.suspend2.net,
	Mailing List <kexec@lists.infradead.org>,
	linux-kernel@vger.kernel.org, Kexec,
	"Rafael J. Wysocki" <rjw@sisk.pl>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Pavel Machek <pavel@ucw.cz>, Huang Ying <ying.huang@intel.com>,
	linux-pm@lists.linux-foundation.org
Subject: Re: [PATCH -mm 1/2] kexec jump -v12: kexec jump
Date: Fri, 11 Jul 2008 12:21:31 -0700	[thread overview]
Message-ID: <20080711122131.b6461ab1.akpm@linux-foundation.org> (raw)
In-Reply-To: <20080708145051.GA14745@redhat.com>

On Tue, 8 Jul 2008 10:50:51 -0400 Vivek Goyal <vgoyal@redhat.com> wrote:

> On Mon, Jul 07, 2008 at 11:25:22AM +0800, Huang Ying wrote:
> > This patch provides an enhancement to kexec/kdump. It implements
> > the following features:
> > 
> > - Backup/restore memory used by the original kernel before/after
> >   kexec.
> > 
> > - Save/restore CPU state before/after kexec.
> > 
> 
> Hi Huang,
> 
> In general this patch set looks good enough to live in -mm and
> get some testing going.
> 
> To me, adding capability to return back to original kernel looks
> like a logical extension to kexec functionality.

Exciting ;)  It's much less code than I expected.

I don't think I understand the feature any more.  Once upon a time we
thought that this might become a new and better (or at least
better-code-sharing) way of doing suspend-to-disk.  How far are we from
that?

What are the prospects of supporting other architectures?

Who maintains kexec-tools, and are they OK with merging up the
corresponding changes?

Thanks.

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: Huang Ying <ying.huang@intel.com>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Pavel Machek <pavel@ucw.cz>,
	nigel@nigel.suspend2.net, "Rafael J. Wysocki" <rjw@sisk.pl>,
	linux-kernel@vger.kernel.org,
	linux-pm@lists.linux-foundation.org,
	Kexec Mailing List <kexec@lists.infradead.org>
Subject: Re: [PATCH -mm 1/2] kexec jump -v12: kexec jump
Date: Fri, 11 Jul 2008 12:21:31 -0700	[thread overview]
Message-ID: <20080711122131.b6461ab1.akpm@linux-foundation.org> (raw)
In-Reply-To: <20080708145051.GA14745@redhat.com>

On Tue, 8 Jul 2008 10:50:51 -0400 Vivek Goyal <vgoyal@redhat.com> wrote:

> On Mon, Jul 07, 2008 at 11:25:22AM +0800, Huang Ying wrote:
> > This patch provides an enhancement to kexec/kdump. It implements
> > the following features:
> > 
> > - Backup/restore memory used by the original kernel before/after
> >   kexec.
> > 
> > - Save/restore CPU state before/after kexec.
> > 
> 
> Hi Huang,
> 
> In general this patch set looks good enough to live in -mm and
> get some testing going.
> 
> To me, adding capability to return back to original kernel looks
> like a logical extension to kexec functionality.

Exciting ;)  It's much less code than I expected.

I don't think I understand the feature any more.  Once upon a time we
thought that this might become a new and better (or at least
better-code-sharing) way of doing suspend-to-disk.  How far are we from
that?

What are the prospects of supporting other architectures?

Who maintains kexec-tools, and are they OK with merging up the
corresponding changes?

Thanks.

  parent reply	other threads:[~2008-07-11 19:22 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-07  3:25 [PATCH -mm 1/2] kexec jump -v12: kexec jump Huang Ying
2008-07-07  3:25 ` Huang Ying
2008-07-07 12:50 ` Pavel Machek
2008-07-07 12:50   ` Pavel Machek
2008-07-08  9:10   ` Huang Ying
2008-07-08  9:10     ` Huang Ying
2008-07-08 10:40     ` Pavel Machek
2008-07-08 10:40     ` Pavel Machek
2008-07-08 10:40       ` Pavel Machek
2008-07-09  1:12       ` Huang Ying
2008-07-09  1:12         ` Huang Ying
2008-07-09  1:12       ` Huang Ying
2008-07-08  9:10   ` Huang Ying
2008-07-07 12:50 ` Pavel Machek
2008-07-08 14:50 ` Vivek Goyal
2008-07-08 14:50   ` Vivek Goyal
2008-07-09  1:09   ` Huang Ying
2008-07-09  1:09     ` Huang Ying
2008-07-09  1:09   ` Huang Ying
2008-07-11 19:21   ` Andrew Morton [this message]
2008-07-11 19:21     ` Andrew Morton
2008-07-11 20:11     ` Vivek Goyal
2008-07-11 20:11     ` Vivek Goyal
2008-07-11 20:11       ` Vivek Goyal
2008-07-12  1:02       ` Nigel Cunningham
2008-07-12  1:02       ` Nigel Cunningham
2008-07-12  1:02         ` Nigel Cunningham
2008-07-14  5:46         ` Pavel Machek
2008-07-14  5:46           ` Pavel Machek
2008-07-14 13:32           ` Vivek Goyal
2008-07-14 13:32           ` Vivek Goyal
2008-07-14 13:32             ` Vivek Goyal
2008-08-04 11:01             ` Pavel Machek
2008-08-04 11:01               ` Pavel Machek
2008-08-04 11:01             ` Pavel Machek
2008-07-14  5:46         ` Pavel Machek
2008-07-14 13:09         ` Vivek Goyal
2008-07-14 13:09         ` Vivek Goyal
2008-07-14 13:09           ` Vivek Goyal
2008-07-11 20:24     ` Pavel Machek
2008-07-11 20:24       ` Pavel Machek
2008-07-11 20:40       ` Rafael J. Wysocki
2008-07-11 20:40       ` Rafael J. Wysocki
2008-07-11 20:40         ` Rafael J. Wysocki
2008-07-12  2:23         ` Eric W. Biederman
2008-07-12  2:23         ` Eric W. Biederman
2008-07-12  2:23           ` Eric W. Biederman
2008-07-12  3:04           ` Alan Stern
2008-07-12  3:04           ` [linux-pm] " Alan Stern
2008-07-12  3:04             ` Alan Stern
2008-07-12  3:50             ` Eric W. Biederman
2008-07-12  3:50               ` Eric W. Biederman
2008-07-12 18:52               ` Rafael J. Wysocki
2008-07-12 18:52               ` [linux-pm] " Rafael J. Wysocki
2008-07-12 18:52                 ` Rafael J. Wysocki
2008-07-12 19:55               ` Alan Stern
2008-07-12 19:55                 ` Alan Stern
2008-07-12 19:55               ` Alan Stern
2008-07-12  3:50             ` Eric W. Biederman
2008-07-11 20:24     ` Pavel Machek
2008-07-14 13:30     ` huang ying
2008-07-14 13:30       ` huang ying
2008-07-14 13:30     ` huang ying
2008-07-14 13:30     ` huang ying
2008-07-11 19:21   ` Andrew Morton
2008-07-08 14:50 ` Vivek Goyal
  -- strict thread matches above, loose matches on Subject: below --
2008-07-07  3:25 Huang Ying

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