From: Nigel Cunningham <ncunningham-lkml@crca.org.au>
To: Pavel Machek <pavel@suse.cz>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Chris Friesen <cfriesen@nortel.com>,
Arjan van de Ven <arjan@infradead.org>,
linux-kernel@vger.kernel.org, Doug Thompson <norsk5@yahoo.com>,
linux-mm@kvack.org, bluesmoke-devel@lists.sourceforge.net
Subject: Re: marching through all physical memory in software
Date: Fri, 30 Jan 2009 20:05:24 +1100 [thread overview]
Message-ID: <1233306324.11332.11.camel@nigel-laptop> (raw)
In-Reply-To: <20090128193813.GD1222@ucw.cz>
Hi.
On Wed, 2009-01-28 at 20:38 +0100, Pavel Machek wrote:
> You can do the scrubbing today by echo reboot > /sys/power/disk; echo
> disk > /sys/power/state :-)... or using uswsusp APIs.
That won't work. The RAM retains it's contents across a reboot, and even
for a little while after powering off.
Regards,
Nigel
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next prev parent reply other threads:[~2009-01-30 9:05 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <497DD8E5.1040305@nortel.com>
[not found] ` <20090126075957.69b64a2e@infradead.org>
[not found] ` <497F5289.404@nortel.com>
2009-01-27 20:16 ` Eric W. Biederman
2009-01-28 19:38 ` Pavel Machek
2009-01-30 9:05 ` Nigel Cunningham [this message]
2009-01-30 9:13 ` Pavel Machek
2009-01-30 13:00 ` Nigel Cunningham
[not found] ` <1236291400.1476.50.camel@dhcp-100-19-198.bos.redhat.com>
2009-03-06 21:16 ` [Patch] mm tracepoints Andrew Morton
[not found] <715599.77204.qm@web50111.mail.re2.yahoo.com>
2009-01-30 19:32 ` marching through all physical memory in software Eric W. Biederman
2009-01-30 20:20 ` Tim Small
2009-01-31 3:54 ` Eric W. Biederman
2009-01-31 12:48 ` Tim Small
2009-01-31 13:43 ` Henrique de Moraes Holschuh
2009-01-31 21:27 ` Pavel Machek
2009-02-01 1:25 ` Henrique de Moraes Holschuh
2009-01-30 21:10 ` Nigel Cunningham
2009-02-02 18:29 ` Chris Friesen
2009-02-02 22:45 ` Valdis.Kletnieks
2009-02-03 14:31 ` Chris Friesen
2009-02-03 22:25 ` Pavel Machek
2009-02-04 16:03 ` Chris Friesen
2009-02-04 16:47 ` Dave Jiang
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