From owner-cvs-all  Wed Jul 21 11: 3:39 1999
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From: Alan Cox <alc@FreeBSD.org>
Date: Wed, 21 Jul 1999 11:02:29 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/alpha/alpha pmap.c src/sys/i386/i386 pmap.c
         src/sys/kern kern_fork.c src/sys/vm pmap.h vm_glue.c vm_map.c
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alc         1999/07/21 11:02:28 PDT

  Modified files:
    sys/alpha/alpha      pmap.c 
    sys/i386/i386        pmap.c 
    sys/kern             kern_fork.c 
    sys/vm               pmap.h vm_glue.c vm_map.c 
  Log:
  Fix the following problem:
  
  When creating new processes (or performing exec), the new page
  directory is initialized too early.  The kernel might grow before
  p_vmspace is initialized for the new process.  Since pmap_growkernel
  doesn't yet know about the new page directory, it isn't updated, and
  subsequent use causes a failure.
  
  The fix is (1) to clear p_vmspace early, to stop pmap_growkernel
  from stomping on memory, and (2) to defer part of the initialization
  of new page directories until p_vmspace is initialized.
  
  PR:		kern/12378
  Submitted by:	tegge
  Reviewed by:	dfr
  
  Revision  Changes    Path
  1.28      +14 -4     src/sys/alpha/alpha/pmap.c
  1.242     +15 -4     src/sys/i386/i386/pmap.c
  1.64      +3 -1      src/sys/kern/kern_fork.c
  1.31      +2 -1      src/sys/vm/pmap.h
  1.87      +3 -1      src/sys/vm/vm_glue.c
  1.173     +3 -1      src/sys/vm/vm_map.c



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