In the last couple of days, I'm getting on "shutdown -r":

  unmounting /tmp (tmpfs)...panic: kernel diagnostic assertion "de->td_node->tn_vnode == NULL" failed: file "../../../../fs/tmpfs/tmpfs_vfsops.c", line 237
  Begin traceback...
  _prop_dictionary_keysym32_pool(ce530005,ce53ffb0,ce178ce4,ce53ef8c,ce178f64) at 0xce178e70
  End traceback...

  dumping to dev 0,1 offset 34567
  dump 2047 2046 2045 2044 ....

In tmpfs_vfsops.c:1.30 there was a restructure around there.  Is the
assertion still valid?

Also, I'm not getting my core dump saved anymore on reboot for some
reason, even though the dump completes.

Regards,
-- 
Geoff