Subject: Re: kern/25659: drive not recognized because of delays
To: None <kern-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: Martin Husemann <martin@duskware.de>
List: netbsd-bugs
Date: 04/22/2005 06:48:02
The following reply was made to PR kern/25659; it has been noted by GNATS.
From: Martin Husemann <martin@duskware.de>
To: gnats-bugs@netbsd.org
Cc:
Subject: Re: kern/25659: drive not recognized because of delays
Date: Fri, 22 Apr 2005 08:47:21 +0200
On Thu, Apr 21, 2005 at 10:09:01PM +0000, Brian Buhrow wrote:
> In general, I think wdc.c is a bit too trigger happy, and given the
> increasing speeds of processors, slowing it down a bit will lead to fewer
> failures to recognize attached drives.
Uhm, none of the changes you proposed would change any processor speed
dependend things.
I think the timeout values come from the ATA standard, and I wouldn't mind to
change the outer loop controlls to i.e. give bogus drives twice the time as
the standard permits (while not affecting good drives) - but you are touching
a lot of the inner small delays, is that realy needed?
Martin