From owner-freebsd-current@FreeBSD.ORG Fri Oct 22 19:48:11 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3DCF116A4CE; Fri, 22 Oct 2004 19:48:11 +0000 (GMT) Received: from pooker.samsco.org (pooker.samsco.org [168.103.85.57]) by mx1.FreeBSD.org (Postfix) with ESMTP id C807543D39; Fri, 22 Oct 2004 19:48:10 +0000 (GMT) (envelope-from scottl@freebsd.org) Received: from [192.168.254.11] (junior-wifi.samsco.home [192.168.254.11]) (authenticated bits=0) by pooker.samsco.org (8.12.11/8.12.10) with ESMTP id i9MJmm9V062305; Fri, 22 Oct 2004 13:48:48 -0600 (MDT) (envelope-from scottl@freebsd.org) Message-ID: <41796396.5070804@freebsd.org> Date: Fri, 22 Oct 2004 13:46:30 -0600 From: Scott Long User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.2) Gecko/20040929 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Brooks Davis References: <417960C2.8040007@freebsd.org> <20041022194008.GA23778@odin.ac.hmc.edu> In-Reply-To: <20041022194008.GA23778@odin.ac.hmc.edu> X-Enigmail-Version: 0.86.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, hits=0.0 required=3.8 tests=none autolearn=no version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on pooker.samsco.org cc: freebsd-current@freebsd.org cc: Andre Oppermann Subject: Re: Annoying SCSI waiting... X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Oct 2004 19:48:11 -0000 Brooks Davis wrote: > On Fri, Oct 22, 2004 at 09:34:26PM +0200, Andre Oppermann wrote: > >>Can't we just reduce the annoying: >> >> Waiting 15 second for SCSI devices to settle >> >>to something shorter like 5 seconds in GENERIC? I know perfectly well >>where it came from but these days not many of those slow disks are >>still around. >> >>It really annoys the hell out of me waiting the 15 seconds for nothing >>each time I boot the GENERIC kernel for testing. Sure I can change >>that in the kernel config but then it's modified. Any why take 15 >>seconds of everyone if only a very few actually need it (those with >>stone-age disk drives)? > > > Since I added tunables a while back, it should be safe to remove the > setting from GENERIC entierly, at least in CURRENT. The default is > 2 seconds and works fine for most applications. You can always set > kern.cam.scsi_delay to a different value in the loader if you have > devices that need more time. > > -- Brooks > > -- > Any statement of the form "X is the one, true Y" is FALSE. > PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 This is not just a problem with old disk drives, it's a problem with some cdrom and many tape drives. Maybe it can be set to 15 only if the sa, cd, and/or ch drivers are present. That still doesn't solve the problem with GENERIC, and I would like to keep GENERIC as compatible as possible. Scott