NATA update

[Thomas E. Spanjaard]

YONETANI Tomokazu wrote:
  acd0: WARNING - DEVICE_RESET taskqueue timeout - completing request directly
  spin_lock: 0xc240ba6c, indefinite wait!
  spin_lock: 0xc240ba6c, indefinite wait!
I just comitted a fix I tested on my new Core 2 Duo (it's sweet!). I 
didn't unlock the done spinlock when calling ata_completed() directly 
when the msleep() timed out.

nata* drivers are compiled in an SMP kernel, running on Athlon64X2
with ASRock 939Dual-SATA2 .  If I yank off the DVD-ROM drive from the
system, it proceeds to mount root fs, then failed:
  Mounting root from ufs:/dev/ad0s1h
  no such device 'ad'
  setrootbyname failed
  ffs_mountroot: can't find rootvp
  Root mount failed: 6
I haven't debugged this one yet, and the code I looked at yesterday 
doesn't scream "here's the problem, obviously!". I'll try reproducing it 
tomorrow.

Cheers,
--
        Thomas E. Spanjaard
        tgen at netphreax.net
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