The following reply was made to PR kern/121686; it has been noted by GNATS.
From: Alexander Motin <mav@FreeBSD.org>
To: bug-followup@FreeBSD.org, email@example.com
Subject: Re: kern/121686: [ata] bogus CHS to LBA mapping in (at least) ata
Date: Sat, 07 Nov 2009 20:48:48 +0200
ATA(4) doesn't uses CHS geometry for drives supporting LBA. I have
doubts that this is geometry related issue. Reading after media end
should give other error status, but not timeout. Can you try dd on
different areas to make sure it is working there?