yamt b456aa6a56 - fix a use-after-free bug in uvm_km_free.
(after uvm_km_pgremove frees pages, the following pmap_remove touches them.)
- acquire the object lock for operations on pmap_kernel as it can actually be
  raced with P->V operations.  eg. pagedaemon.
2011-07-05 14:03:06 +00:00
..