Subject: Re: kern/15232: ffs_sync writes out read-only pages to disk
To: David Laight <david@l8s.co.uk>
From: Bill Sommerfeld <sommerfeld@orchard.arlington.ma.us>
List: tech-kern
Date: 01/13/2002 10:32:25 
> Surely there is a 'page modified' bit - and the write should only
> happen if it is modified?

this may just be updating the vnode 'last access' time.

if you mount -o noatime,nodevmtime the disk should be more likely to
spin down.

					- Bill