On Sun, Oct 01, 2006 at 01:25:02AM +0000, Greg A. Woods wrote:
> The following reply was made to PR kern/23420; it has been noted by GNATS.
> 
> From: "Greg A. Woods" <woods@planix.com>
> To: gnats-bugs@NetBSD.org
> Cc: 
> Subject: Re: kern/23420: new ahc driver doesn't probe Seagate ST318436LC drives at the right speed
> Date: Sat, 30 Sep 2006 21:24:25 -0400
> 
>  > From: Sergey Svishchev <svs+pr@grep.ru>
>  > To: gnats-bugs@netbsd.org
>  > Subject: Re: kern/23420
>  > Date: Sat, 30 Sep 2006 11:52:54 +0400
>  > 
>  >  This looks very much like the problem I've seen on Linux machines.
>  >  The 'new' aic7xxx driver would negotiate lower speed than 'old'
>  >  (aic7xxx_old) driver.  Newer driver reads SEEPROM and per-target speed
>  >  settings stored there.  In my case, SEEPROM settings forced all targets
>  >  to negotiate 10MB/s speed, while Adaptec BIOS displayed "40MB/s" as
>  >  current setting.  The fix was to change all speed settings to something
>  >  else, save them, and change them again to desired speed.
>  
>  Coincidentally I recently did approximately just that on another
>  controller and machine recently where the drives weren't being probed at
>  their maximum speed, though I didn't bother setting the desired speed --
>  I just set the maximum for the controller.
>  
>  I guess we can write this off as an Adaptec BIOS bug.
>  
>  This PR should probably be turned into a documentation bug and maybe a
>  note can be added to the manual page suggesting this
>  change-and-save-twice work-round for adjusting drive parameters via the
>  adapter's BIOS.

Can you provide a patch for the ahc(4) man page ?

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--