rmind@NetBSD.org wrote:

>  .El
> +.Sh MEMORY MANAGEMENT
> +General purpose extent manager. See
> +.Xr extent 9 .

I think extent(9) is not memory management (which implies VM system)
specific but generic interface to manage region.

> +.Sh I/O SUBSYSTEMS

I think these entries should be merged into device driver section.

> +.Pp
> +Bus space manipula tion functions. See

Pasto?

> +Description of a device driver. See
> +.Xr driver 9 .

If driver(9) is here, autoconf(9) and config(9) should also be here.

> +Generic disk framework. See
> +.Xr disk 9 .

> +Machine-independent console support. See
> +.Xr wscons 9 .

Should these also be in device driver section?
---
Izumi Tsutsui