From owner-cvs-all  Fri Jul  2 13:33:38 1999
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From: Mike Smith <msmith@FreeBSD.org>
Date: Fri, 2 Jul 1999 13:33:35 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/i386/i386 machdep.c
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msmith      1999/07/02 13:33:35 PDT

  Modified files:
    sys/i386/i386        machdep.c 
  Log:
  Lightly overhaul the memory sizing code again.
  
   - The kernel environment variable 'hw.physmem' can be used to set the
     amount of physical memory space, based at 0, that FreeBSD will use.
     Any memory detected over this limit is ignored.  Documentation for
     this is available under 'help set tunables' in the loader.
  
   - In the case where system memory size can't be accurately determined,
     hw.physmem is used as a best-guess memory size, but speculative
     probing will be used to determine actual memory size if any of the
     guesses or hints are 16M or more.
  
   - If RB_VERBOSE, we list the memory regions as we test them.
  
   - The compile-time option MAXMEM supplies a default value for
     'hw.physmem'.
  
  Revision  Changes    Path
  1.349     +127 -80   src/sys/i386/i386/machdep.c



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