From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergei Shtylyov Subject: Re: HPT374 IDE problem with 2.6.21.* kernels Date: Sat, 02 Jun 2007 00:53:56 +0400 Message-ID: <46608764.5060807@ru.mvista.com> References: <20070601134607.ce4a37bd.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from homer.mvista.com ([63.81.120.155]:52504 "EHLO imap.sh.mvista.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1763542AbXFAUwZ (ORCPT ); Fri, 1 Jun 2007 16:52:25 -0400 In-Reply-To: <20070601134607.ce4a37bd.akpm@linux-foundation.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Geller Sandor Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Hello. Andrew Morton wrote: >>I saw a similar report yesterday with '2.6.21.1 - 97% wait time on IDE >>operations' subject. >>After upgrading from 2.6.20.7 kernel to 2.6.21.1 my system started to >>reset infrequenly the IDE bus. In the syslog DMA timeout, resetting IDE >>bus messages appeared. I've changed the two disks attached to the HPT374 >>controller, and always the first disk had problems. I've replaced cables, >>plugged the disks into other IDE ports, but it was only a matter of time >>to experience an IDE reset. When I upgraded to 2.6.21.3 the resets became >>much more frequent, this time even DMA was disabled too on the first disk. >>I turned DMA back Manually with hdparm, and a few seconds of intense IO >>activity resulted in another IDE reset. >>Reverting back to 2.6.20.12 the problem seems to be gone. BTW I'm using >>the PATA driver for the HTP374, not the libata one. >>Is this a known problem/ is there a way I can help locating the cause of >>the problem? Yes, please post the boot log and the IDE reset log too for starters... > (cc's added) WBR, Sergei