From: "Chris Friesen" <cfriesen@nortel.com>
To: linux-kernel@vger.kernel.org
Subject: marching through all physical memory in software
Date: Mon, 26 Jan 2009 09:38:13 -0600 [thread overview]
Message-ID: <497DD8E5.1040305@nortel.com> (raw)
Someone is asking me about the feasability of "scrubbing" system memory
by accessing each page and handling the ECC faults.
The range of PAGE_OFFSET to "high_memory" should get me all of the
kernel memory area, but what about all the memory set aside for
userspace (which may not be contiguous)? Is there any straightforward
way to march through this memory?
I suppose I'm looking for something like walk_page_range(), but for
physical memory rather than virtual.
Thanks,
Chris
next reply other threads:[~2009-01-26 15:50 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-26 15:38 Chris Friesen [this message]
2009-01-26 15:59 ` marching through all physical memory in software Arjan van de Ven
2009-01-27 18:29 ` Chris Friesen
2009-01-27 20:16 ` Eric W. Biederman
2009-01-28 19:38 ` Pavel Machek
2009-01-30 9:05 ` Nigel Cunningham
2009-01-30 9:13 ` Pavel Machek
2009-01-30 13:00 ` Nigel Cunningham
2009-03-05 22:16 ` [Patch] mm tracepoints Larry Woodman
2009-03-06 2:11 ` KOSAKI Motohiro
2009-03-06 2:26 ` Steven Rostedt
2009-03-06 11:04 ` Ingo Molnar
2009-03-06 12:33 ` Larry Woodman
2009-03-06 13:55 ` Ingo Molnar
2009-03-06 16:57 ` Larry Woodman
2009-03-06 17:10 ` Ingo Molnar
2009-03-06 17:38 ` Peter Zijlstra
2009-03-06 17:46 ` Ingo Molnar
2009-03-06 17:56 ` Peter Zijlstra
2009-03-06 18:01 ` Ingo Molnar
2009-03-06 18:20 ` Peter Zijlstra
2009-03-06 18:24 ` Ingo Molnar
2009-03-06 20:01 ` Larry Woodman
2009-03-06 19:06 ` Larry Woodman
2009-03-06 21:53 ` Chris Friesen
2009-03-06 19:22 ` Larry Woodman
2009-03-25 18:09 ` Latest mm tracepoints patch merged to your tip tree Larry Woodman
2009-03-06 21:16 ` [Patch] mm tracepoints Andrew Morton
2009-02-06 9:00 ` marching through all physical memory in software Andi Kleen
2009-02-07 3:03 ` Henrique de Moraes Holschuh
[not found] <715599.77204.qm@web50111.mail.re2.yahoo.com>
2009-01-30 19:32 ` 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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