Path: utzoo!attcan!uunet!ncrlnk!ncr-sd!hp-sdd!hplabs!sm.unisys.com!csun!polyslo!khearn
From: khearn@polyslo.CalPoly.EDU (Keith Hearn)
Newsgroups: comp.os.minix
Subject: need help reading data from /dev/kmem
Keywords: nlist()  /dev/kmem
Message-ID: <7107@polyslo.CalPoly.EDU>
Date: 18 Jan 89 05:37:25 GMT
Reply-To: khearn@polyslo.CalPoly.EDU (Keith Hearn)
Organization: Cal Poly State University -- San Luis Obispo
Lines: 18

I am interested in possibly adding system activity reporting to the MINIX
  kernel ( What's system activity? See the system V sar man page, or the
  BSD vmstat and mpstat man pages). 
  
Unfortunately, to do so, I need to be able to read data from /dev/kmem.
  In UNIX i would use nlist() to get the addresses of the variables 
  I want, then do an open(), an lseek(), and a read(). Simple. 

However, MINIX (at least 1.2) has no nlist() system call. I'm not 
  even sure that there is a namelist in /dev/kmem. 
  
Has anyone out there managed to read data from /dev/kmem? 

How would you suggest I go about trying it?

Thanks,
Keith Hearn
khearn@polyslo.calpoly.edu