RELENG_5: ata interrupt problems

[Randy Bush]

>>> The problem is specifically the following Soren Schmidt commits:
>>> 
>>>   1.222     +1 -1      src/sys/dev/ata/ata-all.c
>>>   1.44      +4 -9      src/sys/dev/ata/ata-lowlevel.c
>>>   1.32      +13 -13    src/sys/dev/ata/ata-queue.c
>>> 
>>> Roll these back to the previous versions and it all works fine.  I
>>> contacted him about this a few days ago but with no response other than
>>> further ATA commits on other files.  As of last nights current, it's still
>>> broken. 
> 
> This almost certainly will solve your problem.

these changes were the 16th.  my problems are with code cvsupped
the 20th.

randy