From: Andrew Morton <akpm@linux-foundation.org>
To: James Bottomley <James.Bottomley@SteelEye.com>
Cc: linux-scsi@vger.kernel.org, karaluh@tlen.pl,
"bugme-daemon@kernel-bugs.osdl.org"
<bugme-daemon@bugzilla.kernel.org>
Subject: Re: Fw: [Bugme-new] [Bug 8141] New: Adaptec 39320D and long boot
Date: Sun, 11 Mar 2007 15:52:54 -0800 [thread overview]
Message-ID: <20070311155254.a76ad319.akpm@linux-foundation.org> (raw)
In-Reply-To: <1173636225.3420.13.camel@mulgrave.il.steeleye.com>
> On Sun, 11 Mar 2007 13:03:44 -0500 James Bottomley <James.Bottomley@SteelEye.com> 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)
prev parent reply other threads:[~2007-03-11 23:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-07 20:33 Fw: [Bugme-new] [Bug 8141] New: Adaptec 39320D and long boot Andrew Morton
2007-03-11 18:03 ` James Bottomley
2007-03-11 23:52 ` Andrew Morton [this message]
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