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From: James Bottomley <James.Bottomley@SteelEye.com>
To: Bryce as root <root@www.linux.org.uk>
Cc: SCSI Mailing List <linux-scsi@vger.kernel.org>
Subject: Re: aic79xx blowups in 2.6.8-1.521smp (RHAT)
Date: 04 Oct 2004 09:00:47 -0500	[thread overview]
Message-ID: <1096898453.1748.9.camel@mulgrave> (raw)
In-Reply-To: <E1CERtQ-0001CV-9T@www.linux.org.uk>

On Mon, 2004-10-04 at 07:24, Bryce as root wrote:
> kernel dmesg dump :
> Reseting Channel for LQI Phase error

This is clearly the cause of all the trouble.  The driver is a bit
opaque at this point, but it looks like an LQI phase error occurs
because of a phase mismatch during L_Q Information Units (These are a
requirement for fast-160 data transfers).

I think this is a strong indicator of bus instability ... could you try
falling back to fast-80 and turning off IU transfers (You'll probably
either have to use the card bios or dig around in the aic79xx driver for
the options).

James



  reply	other threads:[~2004-10-04 14:01 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-04 12:24 aic79xx blowups in 2.6.8-1.521smp (RHAT) Bryce as root
2004-10-04 14:00 ` James Bottomley [this message]
2004-10-07 10:48   ` Bryce as root
2004-10-07 15:54     ` Luben Tuikov
2004-10-05 14:04 ` Luben Tuikov
2004-10-05 21:51 ` Luben Tuikov

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