---
- branch: MAIN
  date: Mon Jan 30 10:33:05 UTC 2012
  files:
  - new: '1.161'
    old: '1.160'
    path: src/sys/arch/x86/x86/pmap.c
    pathrev: src/sys/arch/x86/x86/pmap.c@1.161
    type: modified
  id: 20120130T103305Z.150158f67ead9cd29aa8395c5395dce3302925a8
  log: |
    On xen, prevent cached PDP objects from being reused by pool_cache(9),
    since they are "pinned" on the hypervisor and thus R/O for the domU.

    Separately, after every per-cpu pmap pdir entry reset, make sure that
    the corresponding L3 PTP pointers are flushed from all cpus with the
    pmap loaded. Enforce this immediately via pmap_tlb_shootnow();
  module: src
  subject: 'CVS commit: src/sys/arch/x86/x86'
  unixtime: '1327919585'
  user: cherry