Nathan Whitehorn 0dfddf6e65 Fix a typo in the original import of this code from NetBSD that caused the
wrong element of the VSID bitmap array to be examined after a collision,
leading to reallocation of in-use VSIDs under some circumstances, with
attendant memory corruption. Also add an assert to check for this kind of
problem in the future.

MFC after:	4 days
2010-09-08 16:58:06 +00:00
..
2010-07-13 05:32:19 +00:00