From mboxrd@z Thu Jan 1 00:00:00 1970 From: Harri Olin Subject: Re: sata_mv, io stucks Date: Sun, 16 Nov 2008 14:35:13 +0200 Message-ID: <49201381.9020704@gmail.com> References: <48F88449.1000704@ngs.ru> <49003B9C.1010303@ngs.ru> <4900A12F.3030307@rtr.ca> <491EE84B.1010600@gmail.com> <491F4096.9090701@rtr.ca> <491F5E42.8010906@gmail.com> <491FA4D8.1010708@rtr.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from gw01.mail.saunalahti.fi ([195.197.172.115]:41046 "EHLO gw01.mail.saunalahti.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751888AbYKPMfV (ORCPT ); Sun, 16 Nov 2008 07:35:21 -0500 In-Reply-To: <491FA4D8.1010708@rtr.ca> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mark Lord Cc: linux-ide@vger.kernel.org, Artem Bokhan Mark Lord wrote: > Harri Olin wrote: > .. >>>>>>> Two marvell controllers, 16 disks, software raid10, IO stucks on >>>>>>> different disks, kernel 2.6.26.5. >>>>>>> With default ubuntu's 8.04 2.6.24 kernel the problem can not be >>>>>>> repeated > This could very well be due to one/several of the as-yet un-addressed > chipset errata for the 6081. Someday we'll have software workarounds > for those, but I'm (still) waiting on Marvell for stuff. > I was going through logs for the last night and noticed something: Currently I have only 7 disks connected to 6081 controller, port 5 is free, and now stalls have been happening only on ports 0, 2 and 3. So it seems something on high port is affecting corresponding lower port too. > Harri / Artem: what type/speed of slots are your 6081 controllers in? > PCI, or PCI-X? Bus speed? > As mentioned earlier, 33MHz, 66MHz and 133MHz. Motherboards are: some Asus board with VIA chipset, Supermicro P4SCI and Supermicro X7SBE. I think P4SCI has 66MHz 64bit PCI, not PCI-X. -- Harri.