Manuel Bouyer <bouyer@antioche.eu.org> wrote:
> 
> You drive claims to support only version 2 of ATA protocol, while it supports
> some ATA-4 commands (WDC_FLUSHCACHE is part of the ATA command set since
> ATA-4).

Okay, so it is actually a firmware bug of my hard drive, not a bug in
NetBSD. But NetBSD needs a work-around in order to solve this problem...

>> At the moment, there is no
>> problem, is it?
> 
> No, because my patch forces the execution of WDC_FLUSHCACHE regardless of the
> revision. But it's not really an acceptable fix.
> Could you see if the attached patch fix your problem ? If so I'll commit it.

I will try it Friday evening.

Many thanks for your help,

Michael