From: "Huang, Ying" <ying.huang@intel.com>
To: Joseph Fannin <jfannin@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>,
"Eric W. Biederman" <ebiederm@xmission.com>,
nigel@suspend2.net, Andrew Morton <akpm@linux-foundation.org>,
Jeremy Maitin-Shepard <jbms@cmu.edu>,
linux-kernel@vger.kernel.org,
linux-pm@lists.linux-foundation.org,
Kexec Mailing List <kexec@lists.infradead.org>
Subject: Re: [RFC][PATCH 1/2 -mm] kexec based hibernation -v3: kexec jump
Date: Thu, 27 Sep 2007 14:33:54 +0800 [thread overview]
Message-ID: <1190874834.21818.300.camel@caritas-dev.intel.com> (raw)
In-Reply-To: <20070926203036.GF31759@nineveh.local>
On Wed, 2007-09-26 at 16:30 -0400, Joseph Fannin wrote:
> But, in my ignorance, I'm not sure even fixing the ext3 bug will
> guarantee you consistent metadata so that you can handle a
> swap/hibernate file. You can do a sync(), but how do you make that
> not race against running processes without the freezer, or blkdev
> snapshots?
>
> I guess uswsusp and the-patch-previously-known-as-suspend2 handle
> this somehow, though.
The image-writing kernel of kexec based hibernation run in a controlled
way. It is not used by normal user, so only really necessary process
need to be run. For example, it is possible that there is only one user
process -- the image-writing process running in image-writing kernel.
So, no freezer or blkdev snapshot is needed.
Best Regards,
Huang Ying
next prev parent reply other threads:[~2007-09-27 6:32 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-20 5:34 [RFC][PATCH 1/2 -mm] kexec based hibernation -v3: kexec jump Huang, Ying
2007-09-20 10:09 ` Pavel Machek
2007-09-21 0:24 ` Nigel Cunningham
2007-09-21 1:06 ` Andrew Morton
2007-09-21 1:19 ` Nigel Cunningham
2007-09-21 1:41 ` Andrew Morton
2007-09-21 1:57 ` Nigel Cunningham
2007-09-21 2:18 ` Huang, Ying
2007-09-21 2:25 ` Nigel Cunningham
2007-09-21 2:45 ` Huang, Ying
2007-09-21 2:58 ` Nigel Cunningham
2007-09-21 4:46 ` Eric W. Biederman
2007-09-21 9:45 ` Pavel Machek
2007-09-26 20:30 ` Joseph Fannin
2007-09-26 20:52 ` Nigel Cunningham
2007-09-27 6:33 ` Huang, Ying [this message]
2007-09-27 6:35 ` Nigel Cunningham
2007-09-22 22:02 ` Alon Bar-Lev
2007-09-21 3:33 ` Eric W. Biederman
2007-09-21 12:09 ` [linux-pm] " Rafael J. Wysocki
2007-09-21 13:14 ` huang ying
2007-09-21 14:31 ` Rafael J. Wysocki
2007-09-21 15:02 ` huang ying
2007-09-21 15:50 ` Rafael J. Wysocki
2007-09-21 18:11 ` Jeremy Maitin-Shepard
2007-09-21 19:00 ` Rafael J. Wysocki
2007-09-21 19:45 ` Alan Stern
2007-09-21 20:15 ` Rafael J. Wysocki
2007-09-21 20:26 ` Jeremy Maitin-Shepard
2007-09-21 20:53 ` Rafael J. Wysocki
2007-09-21 21:08 ` Jeremy Maitin-Shepard
2007-09-21 21:25 ` Rafael J. Wysocki
2007-09-21 21:16 ` Jeremy Maitin-Shepard
2007-09-21 23:19 ` Kyle Moffett
2007-09-21 23:47 ` Nigel Cunningham
2007-09-22 10:40 ` Rafael J. Wysocki
2007-10-11 20:54 ` Pavel Machek
2007-10-24 20:38 ` Rafael J. Wysocki
2007-09-22 10:34 ` Rafael J. Wysocki
2007-09-22 18:00 ` Kyle Moffett
2007-09-22 21:51 ` Rafael J. Wysocki
2007-09-26 20:52 ` Joseph Fannin
2007-09-21 4:16 ` Andrew Morton
2007-09-21 11:56 ` Rafael J. Wysocki
2007-09-21 11:58 ` Nigel Cunningham
2007-09-21 12:18 ` Rafael J. Wysocki
2007-09-21 12:15 ` Nigel Cunningham
2007-09-21 13:25 ` huang ying
2007-09-24 17:37 ` Thomas Meyer
2007-09-21 9:49 ` Pavel Machek
2007-09-21 12:10 ` [linux-pm] " Rafael J. Wysocki
2007-09-21 2:55 ` Eric W. Biederman
2007-09-21 7:27 ` Huang, Ying
2007-09-21 4:01 ` Eric W. Biederman
2007-09-21 8:42 ` Huang, Ying
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