Subject: NetBSD master CVS tree commits
To: None <source-changes@NetBSD.ORG>
From: The Source of All Evil <source@NetBSD.ORG>
List: source-changes
Date: 05/06/1998 15:00:02
Wed May  6 14:53:54 PDT 1998
Update of /cvsroot/src/sys/arch/mips/mips
In directory nb00:/tmp/cvs-serv8007

Modified Files:
Log Message:
When changing the mapping on a page, remove the previous mapping if
there is one.  The Mach VM system seems to take care of this, so it
hasn't knowingly caused a problem.  UVM does change mappings without
removing the current mapping, and will pmap_page_protect() hangs
if pmap_enter() doesn't remove the previous mapping.