On Thu, Oct 22, 2015 at 03:13:31PM -0400, Kenneth Adam Miller wrote: > So, previously it was discussed that /dev/mem could be used to mmap a specific > hardware memory into a process. Now I need to unit test some userland code that > does exactly that, but I need to make sure that the unit test selects a small > page that is always free in kernel land. How can I query mem to just grab the > location of a free page? You can't know this from userspace, and even if you could, what would guarantee that 1 second later the kernel wouldn't grab that page to do something else with it? sorry, greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
