From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759137AbYBWRsY (ORCPT ); Sat, 23 Feb 2008 12:48:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752969AbYBWRsO (ORCPT ); Sat, 23 Feb 2008 12:48:14 -0500 Received: from rv-out-0910.google.com ([209.85.198.189]:36115 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752523AbYBWRsN (ORCPT ); Sat, 23 Feb 2008 12:48:13 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=jKQlaQz9g6A9mKIqBTejjE8KDBw8zhmFqWQ4jkWrVbraR/NVmCK9im0OsSzvW60EoeSRgpxibTSMuG87X/potSPn8aejYbmwacPaQeGIb/3C3wyUaNnF+oEd4PTZE4ry+iMW7QU7NEt0cIrpJe5V9jEa5PcYhew++Y5A8aWxblA= Message-ID: <19f34abd0802230948n3b98b7d2kd67ca9c2f8fbbd47@mail.gmail.com> Date: Sat, 23 Feb 2008 18:48:10 +0100 From: "Vegard Nossum" To: "Jeff Garzik" , linux-ide@vger.kernel.org, "Linux Kernel Mailing List" Subject: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I am experiencing a strange problem with 2.6.23.15-137.fc8 (Fedora 8) kernel. Everything works fine, but if I provide the "nosmp" option to the kernel, I get some (S)ATA errors and the system does not boot. Here is a screenshot: http://folk.uio.no/vegardno/DSCF2543.JPG Handwritten summary: scsi0 : ahci scsi1 : ahci ata1: SATA max UDMA/133 cmd 0xf884c100 ctl 0x00000000 bmdma 0x000... ata2: SATA max UDMA/133 cmd 0xf884c180 ctl 0x00000000 bmdma 0x000... ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata1.00: qc timeout (cmd 0xec) ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4) ata1: port is slow to respond, please be patient (Status 0x80) ata1: COMRESET failed (errno=-16) ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ... I don't see the connection between (no-)smp and ata. Something with interrupt routing/IPI, missing irq ack? Booting another !SMP kernel works fine. The problem also exists in 2.6.24-rc2. Kind regards, Vegard Nossum