CVSROOT: /cvs
Module name: src
Changes by: gkoeh...@cvs.openbsd.org 2023/02/20 21:49:43
Modified files:
sys/arch/powerpc/powerpc: pmap.c
Log message:
Set the current pmap in macppc's pmap_activate
This fixes a possible freeze in execve(2). It sometimes froze when a
dual-cpu macppc started daemons during boot. There is a chance that
uvm_map.c uvmspace_exec sees ovm->vm_refcnt != 1 and switches curproc
to a new pmap. If this happened, then execve froze by trying to
copyout to the wrong pmap; curpcb->pcb_pm was old. Fix by setting
pointers when uvmspace_exec calls pmap_activate.
ok miod@
