Re: Fedora Core 5 common issues and bugs

[Alan Cox <alan redhat com>]

On Wed, Mar 29, 2006 at 12:37:40PM -0500, Peter Jones wrote:
> The block layer (or below) does the bogus prefetch.  What inhibits this
> behavior when you're accessing through a filesystem driver?

The file system does the prefetch and it prefetches blocks on a per filebasis

(ie /dev/foo asks for "n, n+1, n+2, n+3
   /isofs/frob.rpm asks for "n, next block of frob, next but one of frob..."

> I think we have exactly the same problem there, and people have
> witnessed accesses through the FS fail near the end of the disk with our
> install media.  To me, it looks like the same behavior.

Any specific bugzilla #'s ?