Hi Geraint, On Thu, Nov 10, 2011 at 8:44 PM, Geraint Yang <geraint0923@xxxxxxxxx> wrote: > Hi Dave, > Thank you for your help ! > Does it mean that I could use all of the memory my computer has? But one of > my classmates told me that kernel could only use 1G from a 4G > memory.computer...Is there anything I have misunderstood ? There is a certain amount (exact amount depends on the architecture and configuration) that can be accessed directly all of the time. Then there is high memory, which can be accessed using kmap/kunmap. See http://linux-mm.org/HighMemory If you have a 64-bit system, then you can access all of the memory directly. -- Dave Hylands Shuswap, BC, Canada http://www.davehylands.com _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
