Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753561AbWKMAKA (ORCPT ); Sun, 12 Nov 2006 19:10:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753583AbWKMAKA (ORCPT ); Sun, 12 Nov 2006 19:10:00 -0500 Received: from nz-out-0102.google.com ([64.233.162.202]:6870 "EHLO nz-out-0102.google.com") by vger.kernel.org with ESMTP id S1753561AbWKMAJ7 (ORCPT ); Sun, 12 Nov 2006 19:09:59 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:user-agent:mime-version:to:subject:content-type:content-transfer-encoding; b=HIkgs53M4RR5X3CLSBmUgA0ODSu3RYj3E2WtxaMeECGE2JUUm1aEAcHNOLRTk2YsV6ky4tMUCJ7gyuukqmtnmY3xaUqOODSOvy1wUxFur7HV2CaaEtcPTuMD+upZHvbDC9L5MtU9Ad3D7a1gFkAkIWuPIrPzqBS6n4RrS3p/JXY= Message-ID: <4557B7D2.2050004@gmail.com> Date: Sun, 12 Nov 2006 17:09:54 -0700 From: "Berck E. Nash" User-Agent: Icedove 1.5.0.7 (X11/20061014) MIME-Version: 1.0 To: "linux-kernel@vger.kernel.org" Subject: 2.6.18 - AHCI detection pauses excessively Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2218 Lines: 57 AHCI pauses heartily on during detection boot, but eventually proceeds. I've mentioned the problem before, but have since narrowed it down a bit. The problem does not occur in 2.6.17.3, but does occur in 2.6.18. The problem is still occurring both in 2.6.19-rc5 as well as 2.6.19-rc5-mm1. Please cc me on replies since I am not subscribed to LKML. Messages surrounding the hang: scsi2 : ahci ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.00: qc timeout (cmd 0xec) ata2.00: failed to IDENTIFY (I/O error, err_mask=0x104) ata2: port is slow to respond, please be patient (Status 0x80) ata2: port failed to respond (30 secs, Status 0x80) ata2: COMRESET failed (device not ready) ata2: hardreset failed, retrying in 5 secs ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.00: ATA-6, max UDMA/133, 640 sectors: LBA ata2.00: ata2: dev 0 multi count 1 ata2.00: configured for UDMA/133 I should note that on this system ata1 and ata3 both detect quickly, but they have 1.5 Gbps devices whereas ata2 has a 3.0Gbps device. The device: 00:1f.2 SATA controller: Intel Corporation 82801GR/GH (ICH7 Family) Serial ATA Storage Controller AHCI (rev 01) (prog-if 01 [AHCI 1.0]) Subsystem: ASUSTeK Computer Inc. Unknown device 2606 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 50 I/O ports at e400 [size=8] I/O ports at e080 [size=4] I/O ports at e000 [size=8] I/O ports at dc00 [size=4] I/O ports at d880 [size=16] Memory at febfb800 (32-bit, non-prefetchable) [size=1K] Capabilities: dmesg snip from 2.6.17.3, without the hangup: scsi1 : ahci ata2: port reset, p_is 40000001 is 2 pis 0 cmd 4017 tf 451 ss 123 se 0 ata2: SATA link up 3.0 Gbps (SStatus 123) ata2: dev 0 cfg 49:2f00 82:0068 83:5060 84:4000 85:0000 86:1000 87:4000 88:407f ata2: dev 0 ATA-6, max UDMA/133, 640 sectors: LBA ata2: dev 0 configured for UDMA/133 Thanks, Berck - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/