From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chuck Ebbert Subject: Re: sata_promise: port is slow to respond, reset failed Date: Tue, 04 Sep 2007 12:37:02 -0400 Message-ID: <46DD89AE.7020802@redhat.com> References: <200709030811.l838BC9a026315@harpo.it.uu.se> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.redhat.com ([66.187.233.31]:35651 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753492AbXIDQhL (ORCPT ); Tue, 4 Sep 2007 12:37:11 -0400 In-Reply-To: <200709030811.l838BC9a026315@harpo.it.uu.se> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mikael Pettersson Cc: linux-ide@how.dk, linux-ide@vger.kernel.org On 09/03/2007 04:11 AM, Mikael Pettersson wrote: > On Mon, 03 Sep 2007 01:04:08 +0200, Peter Favrholdt wrote: >> Hi Mikael Pettersson wrote: >>> I'm easily able to reproduce this problem on my sata_promise test rig. >>> Using 2.6.23-rc5 to dd read a single Seagate disk on a SATA300 TX4 card >>> quickly fails as Peter described. >>> >>> Applying the 1.5Gbps patch to the driver appears to make things stable. >>> >>> Those SATAII chips really don't seem to like 3Gbps mode. Or else we're >>> missing some critical documentation on how to make them work. >> The funny thing is: I have the exact same adapter and disks in a Dell >> PE1800 server. This doesn't show any errors. >> >> Only difference is the card is in a PCI-X slot and the server is running >> Linux 2.6.19.5. > > I assume the PE1800 has some Intel chipset? Which one? > And the machine that does have problems, what chipset does it have? > > I'm actually beginning to think there's some PCI compatibility breakage > somewhere, as I too see sata_promise working fine in some machines but > not in others. Alas, my knowledge of PCI tweakables is close to nil. I am seeing some problems solved by using pci=nomsi and/or pci=nommconf. We either have a bug in MSI, especially on x86_64, or some chipsets just don't work very well with it.