CVS commit: syssrc/sys/arch/i386/i386

[Frank van der Linden <fvdl%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   fvdl
Date:           Sun Oct  6 12:35:17 UTC 2002

Modified Files:
        syssrc/sys/arch/i386/i386: vm_machdep.c

Log Message:
Put an unmapped page below the kernel stack (and above struct user) to
catch kernel stack overflows. This bumps UPAGES from 2 to 4 (one unmapped),
because struct user take 1 page then there's the unmapped page, and
then the 2 pages for the kernel stack. If the NOREDZONE option is
set, UPAGES is 2 as before, and no unmapped page is used.


To generate a diff of this commit:
cvs rdiff -r1.103 -r1.104 syssrc/sys/arch/i386/i386/vm_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.