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From: "Jose R. Santos" <jrsantos@austin.ibm.com>
To: James Bottomley <James.Bottomley@SteelEye.com>
Cc: Matthew Wilcox <matthew@wil.cx>,
	"Jose R. Santos" <jrsantos@austin.ibm.com>,
	SCSI Mailing List <linux-scsi@vger.kernel.org>,
	Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: phase change messages cusing slowdown with sym53c8xx_2 driver
Date: Wed, 1 Dec 2004 15:22:41 -0600	[thread overview]
Message-ID: <20041201212241.GA1528@rx8.austin.ibm.com> (raw)
In-Reply-To: <1101933788.1930.226.camel@mulgrave>

James Bottomley <James.Bottomley@SteelEye.com> [041201]:
> Actually, yes, or the attached variant of it.  Does this solve the
> problem?
> 
> There's no reason why we should assume a SCSI_3 or greater device
> automatically supports ppr (especially if it's inquiry bit is
> advertising that it doesn't...)
> 
> James

That fixes the problem.  No more messages "phase change" messages are
showing up and the disk performance is as expected.

Thanks

-JRS

  reply	other threads:[~2004-12-01 21:23 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-30  3:02 phase change messages cusing slowdown with sym53c8xx_2 driver Jose R. Santos
2004-12-01 16:56 ` Jose R. Santos
2004-12-01 17:16   ` James Bottomley
2004-12-01 20:32     ` Matthew Wilcox
2004-12-01 20:43       ` James Bottomley
2004-12-01 21:22         ` Jose R. Santos [this message]
2004-12-01 23:34         ` Doug Ledford

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