From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: Fw: [Bugme-new] [Bug 8141] New: Adaptec 39320D and long boot Date: Sun, 11 Mar 2007 15:52:54 -0800 Message-ID: <20070311155254.a76ad319.akpm@linux-foundation.org> References: <20070307123335.d7e97db3.akpm@linux-foundation.org> <1173636225.3420.13.camel@mulgrave.il.steeleye.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from smtp.osdl.org ([65.172.181.24]:33528 "EHLO smtp.osdl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964813AbXCKXxJ (ORCPT ); Sun, 11 Mar 2007 19:53:09 -0400 In-Reply-To: <1173636225.3420.13.camel@mulgrave.il.steeleye.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: James Bottomley Cc: linux-scsi@vger.kernel.org, karaluh@tlen.pl, "bugme-daemon@kernel-bugs.osdl.org" > On Sun, 11 Mar 2007 13:03:44 -0500 James Bottomley wrote: > On Wed, 2007-03-07 at 12:33 -0800, Andrew Morton wrote: > > 41-second delay when mounting root fs. > > This sounds like a user configuration error. The adaptec has a bus > settle time in its initialisation path. Originally it was 20s, hence > for a D card (twin channel) it would take about 50s to come online > (extra 5s to scan per channel). There was a lot of argument about this, > and the value was finally made configurable as > > CONFIG_AIC79XX_RESET_DELAY_MS > > I suspect you have this set to around 15000. You can make the boot > sequence shorter by reducing this value. I believe Red Hat configures > it down to the default 5000. > > James (cc's added)