ragge a355d0bc1b Re-implement page reference bit emulation by using the (otherwise unused)
valid bit. This is faster than the "unmap all" solution that were described
in that Mach paper _and_ it eliminates the need for checking the wired bit.
As a result of this; swapping started working again on vax :-)
1998-01-31 12:17:34 +00:00
..
1997-11-05 04:23:35 +00:00
1997-11-05 04:23:35 +00:00
1997-11-05 04:23:35 +00:00