From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: aic7xxx woes in 2.5 Date: Sat, 14 Dec 2002 22:48:02 -0800 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <3DFC25A2.B497FA6@digeo.com> References: <3DFC059A.9AA3F75F@digeo.com> <3DFC1BD2.F2F347C9@yk.rim.or.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from digeo-nav01.digeo.com (digeo-nav01.digeo.com [192.168.1.233]) by packet.digeo.com (8.9.3+Sun/8.9.3) with SMTP id WAA26154 for ; Sat, 14 Dec 2002 22:48:35 -0800 (PST) List-Id: linux-scsi@vger.kernel.org To: Ishikawa Cc: linux-scsi@vger.kernel.org Ishikawa wrote: > > Hi, > > > The parity error is intermittent. But when it happens, the lockup > > always happens. > > > > This never happens in 2.4 kernels. > > > > It seems to happen a little more frequently on uniprocessor builds. > > > > So relevant questions would be: > > > > 1) Why does only 2.5 get the parity error? > > Since you say "uniprocessor builds", maybe you are using > high-quality dual processor board. But just in case, does your > motherboard support proper PCI parity bus check? I expect it supports everything. It is a 1998-vintage Intel ad450nx server - these things cost $70,000 in their day. It is built like a battleship. See http://images.google.com/images?hl=en&lr=&ie=ISO-8859-1&q=ad450nx But that error is a scsi bus error, not a PCI bus error. > ... > > scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.5 > > > > aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs > > > > I noticed that you have many disks. > Are they in external enclosure? They are internal. > If not, is the power-supply in your > PC box spec'ed to supply enough power? It has four power supplies and approximately 13 fans ;)