From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patric Karlsson Subject: Re: Promise SATA TX4 300 port timeout with sata_promise in 2.6.22, kernel panic in 2.6.23 Date: Mon, 12 Nov 2007 09:45:21 +0100 Message-ID: References: <6f048fc10711100443y6e9982b9jc00b3740f0a44d79@mail.gmail.com> <4737D2A3.6010103@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from main.gmane.org ([80.91.229.2]:32793 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754886AbXKLIuK (ORCPT ); Mon, 12 Nov 2007 03:50:10 -0500 Received: from root by ciao.gmane.org with local (Exim 4.43) id 1IrUza-0005sn-U6 for linux-ide@vger.kernel.org; Mon, 12 Nov 2007 08:50:02 +0000 Received: from lx32.ce.chalmers.se ([129.16.20.100]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 12 Nov 2007 08:50:02 +0000 Received: from patric by lx32.ce.chalmers.se with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 12 Nov 2007 08:50:02 +0000 In-Reply-To: <4737D2A3.6010103@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org Tejun Heo wrote: > Hello, > > I Stratford wrote: >> The purpose of the mail is to document and share my experience in the >> hope that someone might find it useful, either for debugging their own >> TX4 300-centric system issues or figuring out what is up with >> sata_promise and the TX4 300 in 3Gbps mode. I also wish to offer my >> somewhat unique promise-based system as a test environment for either >> the timeout or kernel panic issues. I obviously have some basic need >> for data integrity of the RAID5, but this system is not in production >> and is therefore more available for testing purposes than the average >> machine with 22 Promise SATA ports.. :) > > [cc'ing Mikael Pettersson] > > It seems those 3Gbps promise controllers have hard time getting out of > transmission errors. Is it because hardreset doesn't work? Can we fix it? > > Also, if 3Gbps can't be made reliable on those controllers, how about > limiting it to 1.5Gbps by default with appropriate warning messages? > Without PMP, it's not like we're gonna earn anything by driving the > thing at 3Gbps. > > Thanks. > I thought this was supposed to be fixed in 2.6.24-RC2 ? Although I'm currently running a TX4 myself in 3Gbit mode with 2.6.23.1, I'm waiting for 2.6.24 to reach stable until I try it out myself. 2.6.23.1 seemed to fix the hard-lock when it tried to reset the card tho, so now I just get a few errors about "soft resetting" in the logs. No data loss. /Patric