Dear All,
Can you please clarify my doubt on /dev/mem
When I open /dev/mem, Is that entire physical address space is associated to /dev/mem or only the system memory ?
* If I can mmap the kernel memory in read write mode, I can screw up the whole kernel. Is that right ?
* Suppose I map a random memory page frame (let's assume it is a free page) from physical address 1abde000 to 1abdf000,
then will the page allocator not allocate this page to to any other task or to the kernel ?
Thanks,
Prabhu
