Messages in this thread | | | Subject | RE: Walking all the physical memory in an x86 system | Date | Tue, 30 Nov 2004 09:09:22 -0700 | From | "Hanson, Jonathan M" <> |
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-----Original Message----- From: Jan Engelhardt [mailto:jengelh@linux01.gwdg.de] Sent: Tuesday, November 30, 2004 8:55 AM To: Hanson, Jonathan M Cc: linux-kernel@vger.kernel.org Subject: Re: Walking all the physical memory in an x86 system
> I've written a 2.4 kernel module where I'm trying to walk and >record all of the physical memory contents in an x86 system. I have the >following code fragment that does it but I suspect I'm missing a portion >of the memory: > >Is there a better way to record all of the contents of physical memory >since what I have above doesn't seem to get everything?
Maybe something userspace based?
dd_rescue /dev/mem copyofmem
[Jon M. Hanson] I'm not sure what dd_rescue is as I've never heard of it. However, I don't think such an operation can be done from userspace because I need the physical addresses of memory not the virtual ones.
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