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

From: "Steven M. Bellovin" <smb@cs.columbia.edu>
To: gnats-bugs@NetBSD.org
Cc: jmcneill@invisible.ca, 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 22:56:15 +0000

 On Sun,  4 Nov 2007 22:45:02 +0000 (UTC)
 "Jared D. McNeill" <jmcneill@invisible.ca> wrote:
 
 > 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))?
 >  
 It is.  Rather, the only option I see (and I'll go look again) is set
 to SATA, and the disk is using it, but not the CD:
 
 piixide0 at pci0 dev 31 function 1
 piixide0: Intel 82801HBM IDE Controller (ICH8M) (rev. 0x03)
 piixide0: bus-master DMA support present
 piixide0: primary channel configured to compatibility mode
 piixide0: primary channel interrupting at irq 14
 atabus0 at piixide0 channel 0
 atabus0: using generic power management <D0,D1,D3>
 piixide0: secondary channel configured to compatibility mode
 piixide0: secondary channel ignored (disabled)
 piixide0: using generic power management <D0,D3>
 ahcisata0 at pci0 dev 31 function 2: Intel 82801HBM SATA Controller
 ahcisata0: interrupting at irq 10
 ahcisata0: AHCI revision 1.1, 3 ports, 32 command slots, features 0xe710e080
 atabus1 at ahcisata0 channel 0
 atabus1: using generic power management <D0,D1,D3>
 ahcisata0: using generic power management <D0,D3>
 ...
 atapibus0 at atabus0: 2 targets
 cd0 at atapibus0 drive 0: <HL-DT-ST DVDRAM GSA-U10N, KZ27AG42356, 1.05> cdrom re
 movable
 cd0: WARNING: power management not supported
 cd0: 32-bit data port
 cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
 atapibus0: WARNING: power management not supported
 cd0(piixide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA)
 ahcisata0 port 0: device present, speed: 1.5Gb/s
 wd0 at atabus1 drive 0ugen0 at uhub0 port 2