Quoting John M Vinopal,

> Is the swap vm infamous object-pager leak present in the code presented
> in Design and .... of 4.4 Bsd?  Other notes on difference between netbsd
> kernel and book welcome.  Mail to banshee@resort.com please.

Yes, this bug is discussed in the 4.4 book. The book contains quite a good
description of the VM system, and what I like about it: it isn't shy about
admitting shortcomings in the system and pointing to possible ways to 
improve it.

- Frank