boot hang: "ata1: resetting devices .. done" (5.1-CURRENT, IBM T30)

[Kenneth Culver]

Quoting Dan Nelson <dnelson at allantgroup.com>:

> In the last episode (Oct 08), Robert Ferguson said:
> > I see this problem as well. I'm running on a T40, with a DVD/CDRW in
> > the ultrabay, and -CURRENT as of this morning. At boot, it hangs
> > immediately after
> >
> > ad0: 35174MB <IC25N040ATCS05-0> [71465/16/63] at ata0-master UDMA100
> > ata1: resetting devices ..
> > done
> >
> > Backing out the most recent checkin to sys/dev/ata/ata-queue.c (i.e.
> > reverting to version 1.6) makes the problem go away.
>
> I upgraded from an Oct 1 -> Oct 12 kernel and saw the same hang.
> Backing out r1.6 fixed it for me too.
>
"me too"

Ken