The following reply was made to PR kern/37279; it has been noted by GNATS.

From: "Jared D. McNeill" <jmcneill@invisible.ca>
To: "Steven M. Bellovin" <smb@cs.columbia.edu>
Cc: gnats-bugs@NetBSD.org, kern-bug-people@NetBSD.org,
	gnats-admin@NetBSD.org, netbsd-bugs@NetBSD.org
Subject: Re: kern/37279: usb and cdrom don't work after resume on PM branch
Date: Sun, 4 Nov 2007 17:40:03 -0500 (EST)

 On Sun, 4 Nov 2007, Steven M. Bellovin wrote:
 > Here's a diff of the boot-time dmesg and one after a resume.  The shell
 > is just saying "I/O error" any time I try any commands that aren't in
 > the buffer cache.
 
 Can you enable AHCI SATA in the BIOS and try again (so the kernel will use 
 ahcisata(4) instead of piixide(4))?