Tom Spindler writes:
> > This problem was fixed with revision 1.303 of vfs_syscalls.c.  It was
> > caused by trying to fchdir() to a non-directory or to a directory without
> > executed permissions.  netbsd-4 is also affected, I'll submit a pullup.
> 
> Many zillions of thanks for digging this out. (And to Greg Oster, too.)

And to Tom for providing the key bits of debugging info needed to 
track this down... 

Later...

Greg Oster