kernel - Fix rare pmap_scan_callback() panic
commit698ba577565a1484600cf605097904c9c974d49e
authorMatthew Dillon <dillon@apollo.backplane.com>
Sun, 27 May 2018 15:45:28 +0000 (27 08:45 -0700)
committerMatthew Dillon <dillon@apollo.backplane.com>
Sun, 27 May 2018 15:45:28 +0000 (27 08:45 -0700)
tree00dd227b202ad2bceb49a6ad7f2ef8f628daf544
parent83d6ea33386cb72d23143213c8663e4c11e6c0a2
kernel - Fix rare pmap_scan_callback() panic

* Fix a panic where pmap_scan_callback() can sometimes call
  pv_put() with a NULL pd_pv.
sys/platform/pc64/x86_64/pmap.c