kern/149927: hard drive not stopped before removing power during acpi suspend

[Bruce Cran]

>Number:         149927
>Category:       kern
>Synopsis:       hard drive not stopped before removing power during acpi suspend
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Aug 24 06:00:07 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Bruce Cran
>Release:        9.0-CURRENT
>Organization:
>Environment:
>Description:
When running "acpiconf -s 3" a loud "clunk" is heard as the hard drive does an emergency unload. In comparison, both Linux and OpenBSD appear to stop the drive before removing power and the only change in noise comes from the drive and fans spinning down. The ahci driver is being used.
>How-To-Repeat:
acpiconf -s 3
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: