kern/52372: various SATA controllers throwing 'setting WDCTL_RST failed'

[greywolf%starwolf.com@localhost]

>Number:         52372
>Category:       kern
>Synopsis:       various SATA controllers throwing 'setting WDCTL_RST failed'
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jul 06 09:35:00 +0000 2017
>Originator:     Grey Wolf
>Release:        NetBSD 8.99.1
>Organization:
None to speak of
>Environment:
	Motherboard: ASUS Z87-PLUS
	CPU: Intel i7-4770
	RAM: 32GB
	ahcisata0: HighPoint Technologies RocketRaid 640
		atabus0 thru atabus3 (ahcisata0 channels 0-3)
	ahcisata1: Marvell SATA Controller 88SE9230 PCIe 6Gb/s RAID*
		atabus4 thru atabus11 (ahcisata1 channels 0-7)
	ahcisata2: ASMedia SATA controller [2 ports]
		atabus12, atabus13 (ahcisata2 channels 0, 1)
	ahcisata3: Marvell SATA Controller 88SE9230 PCIe 6Gb/s RAID*
		atabus14 thru atabus21 (ahcisata3 channels 0-7)
	ahcisata4: Intel 8C220 6-port SATA controller [AHCI mode]
		atabus22 thru atabus25 (ahcisata4 channels 0-3)

	DMESG at https://www.starwolf.com/machines/eddie/dmesg
	DMI dump at https://www.starwolf.com/eddie/dmi

	"EDDIE" is really, at this point, just a renamed GENERIC kernel,
	until I can get it stable enough with the hardware to start paring
	drivers out.

	The two starred controllers (ahcisata1, ahcisata3) give me grief
	(see below)

System: NetBSD eddie.starwolf.com 8.99.1 NetBSD 8.99.1 (EDDIE) #10: Thu Jun 15 21:39:22 PDT 2017 greywolf%eddie.starwolf.com@localhost:/sys/arch/amd64/compile/EDDIE amd64
Architecture: x86_64
Machine: amd64
>Description:
	I have a machine with Bunch-O-Disks (12), mostly raid-mirrored.

	If I have more than two disks plugged in to either Marvell SATA
	controller, all disks on that controller fail with 
	"ahcisataN channel X: setting WDCTL_RST failed for drive 0"

	If I have the root disk in this arrangement, the machine will boot
	but will then fail to find the root device at which point it will
	then ask me for the root device (and not accept keyboard input, but
	that's for another ticket).  This has caused me considerable grief,
	especially considering that I don't really want to have 4 controllers
	installed for 12 disks -- I should only need 3.

>How-To-Repeat:
	Hook more than two drives up to a Marvell-core SATA Controller and
	boot the box.
>Fix:
	I have no idea even what's gone wrong, here.