Firewire RAM access

Steven Susbauer steven at
Fri Jul 30 05:26:41 UTC 2010

On 07/27/10 07:38, EforeZZ wrote:
> Hi,
> I was playing around with fwcontrol and its "-m" switch.
> I connected my FreeBSD 7.2 notebook to Win7 PC Via firewire and
> attempted to access Win7's RAM through the /dev/fwmem interface. I
> failed.
> The question is.. Should this always work? As far as I know I should
> be able to access other PC's RAM through the firewire connection
> without any support from the connected PC's OS, right?
> Best regards,
> EforeZZ

According to this page for the Linux mem1394 driver, the host can set up 
a filter to block it, and Windows appears to do so 


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