amd64/156022: [hang] 8.2-RELEASE kernel hangs on ata probe for MacbookPro4, 1 [regression]

[linimon at FreeBSD.org]

Old Synopsis: [hang] 8.2-RELEASE kernel hangs on ata probe for MacbookPro4,1
New Synopsis: [hang] 8.2-RELEASE kernel hangs on ata probe for MacbookPro4,1 [regression]

Responsible-Changed-From-To: freebsd-amd64->mav
Responsible-Changed-By: linimon
Responsible-Changed-When: Sat Apr 9 19:43:39 UTC 2011
Responsible-Changed-Why: 
mav, a URL referenced in this PR seems to indicate that the following
was the troublesome commit.  Do you have any insight?  Thanks.

http://svn.freebsd.org/viewvc/base/head/sys/dev/ata/ata-pci.c?view=log
http://svn.freebsd.org/viewvc/base?view=revision&revision=214016

http://www.freebsd.org/cgi/query-pr.cgi?pr=156022