From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Chmielewski Subject: ATA_PIIX - soft resetting port, port is slow to respond, machine "freezes" for a few seconds Date: Sat, 01 Sep 2007 13:23:39 +0200 Message-ID: <46D94BBB.9080403@wpkg.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.syneticon.net ([213.239.212.131]:45612 "EHLO mail2.syneticon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752622AbXIALXt (ORCPT ); Sat, 1 Sep 2007 07:23:49 -0400 Received: from postfix1.syneticon.net (postfix1.syneticon.net [192.168.112.6]) by mail2.syneticon.net (Postfix) with ESMTP id 5FD9B5C7F3 for ; Sat, 1 Sep 2007 13:23:44 +0200 (CEST) Received: from localhost (filter1.syneticon.net [192.168.113.3]) by postfix1.syneticon.net (Postfix) with ESMTP id 9562394E3 for ; Sat, 1 Sep 2007 13:23:43 +0200 (CEST) Received: from postfix1.syneticon.net ([192.168.113.4]) by localhost (mx03.syneticon.net [192.168.113.3]) (amavisd-new, port 10025) with ESMTP id tVJ5W6FkDJ7M for ; Sat, 1 Sep 2007 13:23:41 +0200 (CEST) Received: from [192.168.10.145] (xdsl-87-78-207-62.netcologne.de [87.78.207.62]) by postfix1.syneticon.net (Postfix) with ESMTP for ; Sat, 1 Sep 2007 13:23:40 +0200 (CEST) Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Linux IDE I just upgraded from 2.6.18 distributed with Debian to 2.6.22.6. I compiled ATA_PIIX directly in the kernel. From time to time, the machine "freezes" for a couple of seconds, and I'm getting the following logs (pasted below). I didn't have anything like that with the old IDE. The machine runs a 2 GB Transcend IDE flash disk. Any ideas what it might be? ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen ata1.00: cmd ca/00:10:47:64:1d/00:00:00:00:00/e0 tag 0 cdb 0x0 data 8192 out res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) ata1: port is slow to respond, please be patient (Status 0xd0) ata1: device not ready (errno=-16), forcing hardreset ata1: soft resetting port ata1.00: configured for MWDMA2 ata1: EH complete ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen ata1.00: cmd ca/00:10:47:64:1d/00:00:00:00:00/e0 tag 0 cdb 0x0 data 8192 out res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) ata1: port is slow to respond, please be patient (Status 0xd0) ata1: device not ready (errno=-16), forcing hardreset ata1: soft resetting port ata1.00: configured for MWDMA2 ata1: EH complete ata1.00: limiting speed to MWDMA1:PIO4 ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen ata1.00: cmd ca/00:10:47:64:1d/00:00:00:00:00/e0 tag 0 cdb 0x0 data 8192 out res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) ata1: port is slow to respond, please be patient (Status 0xd0) ata1: device not ready (errno=-16), forcing hardreset ata1: soft resetting port ata1.00: configured for MWDMA1 ata1: EH complete sd 0:0:0:0: [sda] 3985632 512-byte hardware sectors (2041 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] 3985632 512-byte hardware sectors (2041 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA -- Tomasz Chmielewski http://wpkg.org