git: kernel - Fix x86-64 pmap race

[Matthew Dillon]

commit a505393fd1a1920367affae433de8573462fe68c
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Tue Nov 1 23:42:06 2011 -0700

    kernel - Fix x86-64 pmap race
    
    * Fix a x86-64 pmap race where a pte can get ripped out from under
      the pmap_remove*() code.  Recheck the pte after locking pt_pv.

Summary of changes:
 sys/platform/pc64/x86_64/pmap.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/a505393fd1a1920367affae433de8573462fe68c


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