From owner-cvs-all  Thu Jan 27 13: 6:29 2000
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From: John Baldwin <jhb@FreeBSD.org>
Date: Thu, 27 Jan 2000 13:06:15 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/boot/i386/btx/btx btx.s
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jhb         2000/01/27 13:06:15 PST

  Modified files:
    sys/boot/i386/btx/btx btx.s 
  Log:
  Fix brokenness introduced with the PAGING conditional variable.  The value
  of %cr0 wasn't reloaded into %eax before being modified to turn protected
  mode off if PAGING was not defined.  The result was that the processor did
  not exit protected mode, so when it tried to jump to segment 0x0 in the
  next instruction to clear the prefetch cache like one should when leaving
  protected mode, it actually tried to jump to a null selector, causing a
  GPF.
  
  Revision  Changes    Path
  1.14      +4 -2      src/sys/boot/i386/btx/btx/btx.s



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