amd64/148526: [ahci] ahci driver does not boot on AMD chip

[mav at FreeBSD.org]

Synopsis: [ahci] ahci driver does not boot on AMD chip

State-Changed-From-To: open->closed
State-Changed-By: mav
State-Changed-When: Thu Apr 28 19:09:58 UTC 2011
State-Changed-Why: 
Specific case handled by setting tunable. Real problem cause and
possibility of permanent fix is unclear. May be board-specific.

http://www.freebsd.org/cgi/query-pr.cgi?pr=148526