problem mapping physical address from /dev/mem

[Arun KS]

On Thu, Oct 6, 2011 at 1:04 AM, Vaibhav Jain <vjoss197 at gmail.com> wrote:
> Hi,
>
> I am trying to run a program that scans memory from a given physical address
> using /dev/mem.
> It uses mmap to map physical address from /dev/mem. So to start with I used
> /proc/iomem to look up the
> physical memory mapping and found the address 00010000 to be the starting
> address for System ram. But whenever I
> provide this address to the program it throws an error of "Operation not
> permitted". Browsing through some
> articles I found the option of compiling the kernel with
> CONFIG_STRICT_DEVMEM option disabled. I have
> tried this but this isn't working either. Please help me figure out the
> problem.

What is the kernel version?

Thanks,
Arun
>
> Thanks
> Vaibhav Jain
>
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