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From: Alfred Perlstein <alfred@FreeBSD.org>
Date: Tue, 7 Nov 2000 10:31:17 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/i386/i386 pmap.c
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alfred      2000/11/07 10:31:17 PST

  Modified files:
    sys/i386/i386        pmap.c 
  Log:
  Protect against an infinite loop when prefaulting pages.  This can
  happen when the vm system maps past the end of an object or tries
  to map a zero length object, the pmap layer misses the fact that
  offsets wrap into negative numbers and we get stuck.
  
  Found by: Joost Pol aka Nohican <nohican@marcella.niets.org>
  Submitted by: tegge
  
  Revision  Changes    Path
  1.264     +5 -2      src/sys/i386/i386/pmap.c



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