The HyperNews Linux KHG Discussion Pages

## use phy mem

  Forum: The Linux Kernel Hackers' Guide
  Keywords: vremap()?
  Date: Wed, 12 Nov 1997 07:57:22 GMT
  From: WYB <tit@public.bta.net.cn>

    My pc has 64M memory, now I want to map the
    63-64M mem into kernel, so I call:
       vremap( 63*1024*1024, 1024*1024 ) ;
    1.If this block of memory has been occupied
      by others, does vremap() return fail. Otherwise
      I will crash the system.
    2.After vremap(), does this block of memory marked
      alloced, and other mem request does not get any page
      of this block?
    3.Are there any way to know which phy mem is free?