From owner-cvs-all  Wed Sep 13  7: 8:56 2000
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From: Bruce Evans <bde@FreeBSD.org>
Date: Wed, 13 Sep 2000 07:08:51 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/i386/i386 locore.s
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bde         2000/09/13 07:08:50 PDT

  Modified files:
    sys/i386/i386        locore.s 
  Log:
  Be more careful about cleaning up the stack after function calls early
  in the boot.  The cleanup must be done in one of the few ways that
  db_numargs() understands, so that early backtraces in ddb don't underrun
  the stack.  The underruns caused reboots a few years ago when there
  was an unmapped page above the stack (trapping to abort the command
  doesn't work early).
  
  Cleaned up some nearby code.
  
  Revision  Changes    Path
  1.138     +17 -12    src/sys/i386/i386/locore.s



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