From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jose R. Santos" Subject: Re: phase change messages cusing slowdown with sym53c8xx_2 driver Date: Wed, 1 Dec 2004 15:22:41 -0600 Message-ID: <20041201212241.GA1528@rx8.austin.ibm.com> References: <20041130030212.GB22916@austin.ibm.com> <20041201165654.GA32687@rx8.austin.ibm.com> <1101921398.1930.24.camel@mulgrave> <20041201203226.GI5752@parcelfarce.linux.theplanet.co.uk> <1101933788.1930.226.camel@mulgrave> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from e33.co.us.ibm.com ([32.97.110.131]:39671 "EHLO e33.co.us.ibm.com") by vger.kernel.org with ESMTP id S261454AbULAVXJ (ORCPT ); Wed, 1 Dec 2004 16:23:09 -0500 Content-Disposition: inline In-Reply-To: <1101933788.1930.226.camel@mulgrave> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: James Bottomley Cc: Matthew Wilcox , "Jose R. Santos" , SCSI Mailing List , Linux Kernel James Bottomley [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