From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Howorth Subject: Re: sata_via bus errors fixed? Date: Tue, 25 Jan 2011 10:35:29 +0000 Message-ID: <4D3EA771.3070206@mrc-lmb.cam.ac.uk> References: <4D3DA387.8080301@mrc-lmb.cam.ac.uk> <20110124170432.GH27510@htj.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from ppsw-41.csi.cam.ac.uk ([131.111.8.141]:47492 "EHLO ppsw-41.csi.cam.ac.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752017Ab1AYKfb (ORCPT ); Tue, 25 Jan 2011 05:35:31 -0500 Received: from mail.mrc-lmb.cam.ac.uk ([131.111.85.9]:41564 helo=mail.lmb.internal) by ppsw-41.csi.cam.ac.uk (ppsw.cam.ac.uk [131.111.8.136]:25) with esmtp id 1PhgFG-0007YD-QJ (Exim 4.72) for linux-ide@vger.kernel.org (return-path ); Tue, 25 Jan 2011 10:35:30 +0000 Received: from cpepc210-3.lmb.internal ([10.14.0.2]) by mail.lmb.internal with esmtp (Exim 4.63) (envelope-from ) id 1PhgFF-0007NO-Vk for linux-ide@vger.kernel.org; Tue, 25 Jan 2011 10:35:30 +0000 In-Reply-To: <20110124170432.GH27510@htj.dyndns.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org Cc: linux-ide@vger.kernel.org Tejun Heo wrote: > Hmmm... there is no message which shows why EH kicked in. Weird. Can > you please post the output of dmesg instead after those failures? Hello again. I gave back the borrowed Sil 3512 adapter so I can't provide more data for that. I never ran that with Knoppix so I don't know whether it would be 'mended' or not. Last night I booted with the VIA 6421A adapter and the 1 TB drive and recorded various data. They're a bit big to put in an email so I've put them on pastebin; I hope that's OK. They're at: dmesg http://pastebin.com/FF3ZtcXy lspci http://pastebin.com/u5y8XrWm smartctl-a-dev-sda http://pastebin.com/m5YNRw2t var-log-messages http://pastebin.com/mVrkyTF2 >> So I'm curious whether: >> (1) My case is support for wider usefulness of the 'magic patch', or > > I doubt it. The problem is via specific and you seem to be > experiencing similar problem on the sil controller too. The sil problems were similar in effect, in that they both produced a flaky system, but the error messages were different in detail. I'm not qualified to tell whether the differences were significant or not. Unfortunately I've returned the borrowed Sil card and the priority for me now is to see whether I can trust my system using the VIA card. I could probably borrow the Sil card again if it would be helpful. > It seems like the hardware definitely is flaky. SATA is one of the > first things which malfunction when the system has has interference > issues. I have no idea why the new kernel makes it happier tho. Yes, a hardware glitch does seem the strongest candidate. But the newish kernel does seem to make it completely solid AFAICT. Cash-wise my alternative is a new mobo, cpu, ram & psu so there's a bit of an incentive to persevere. But mostly I guess it's just a perverse desire to understand what's going on that is driving me. I suppose I could try various kernel versions to see if it's possible to isolate one change that causes the improved behaviour. That would be a bit of a learning curve and I'm not sure how much time it would need. Cheers, Dave