jeffs bdbb241be6 Fix race between pmap_enter() and pagedaemon. If we are low on memory and
pmap_enter() cannot allocate the segmap return failure if PMAP_CANFAIL
instead of sleeping.  Otherwise panic.  Both alpha and i386 do this.  Do
not pmap_enter_pv() until after this is done so the data structures are
not partially allocated.  This should prevent pmap_page_protect() from
getting stuck when called from pagedaemon.
2000-10-10 20:39:42 +00:00
..
2000-10-09 07:33:31 +00:00