Re: 2.0.30 floppy problem

Alan Cox (
Tue, 15 Apr 1997 20:11:34 +0100 (BST)

> I recall reading (sorry to compare) on the FreeBSD (or maybe NetBSD)
> pages that they had devised some scheme to get around this ISA/DMA
> limitation. Does anyone know anything about that?

I believe they have a kmalloc equivalent that is capable of shuffling
virtually mapped objects around to make space. Thats trickier in our
case as we use the 4Mb pages. We could definitely do with the ability
to move (or dump) groups of freeable pages to make room