atacontrol not reflecting disabled write cache (or rogue hdd?)

[Soeren Schmidt]

It seems Michael Nottebrock wrote:
-- Start of PGP signed section.
> I've recently changed hw.ata.wc to 0 (via loader.conf.local) on two systems 
> and on both systems atacontrol cap still says write cache supported & enabled 
> (sysctl confirms the setting being 0). One system is 5.0-RELEASE, the other 
> 4.8-RC.
> 
> Is atacontrol lying or do the drives insist on write caching?

I'd say the drives insists on it beeing on...

-Søren