From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752513AbZLXBTX (ORCPT ); Wed, 23 Dec 2009 20:19:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751246AbZLXBTW (ORCPT ); Wed, 23 Dec 2009 20:19:22 -0500 Received: from mailget.neusoft.com ([210.83.25.69]:19926 "EHLO mailgate.neusoft.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1750874AbZLXBTV (ORCPT ); Wed, 23 Dec 2009 20:19:21 -0500 X-IronPort-AV: E=McAfee;i="5400,1158,5841"; a="5597892" Date: Thu, 24 Dec 2009 09:21:29 +0800 (CST) From: fengxiangjun Subject: Re: 2.6.32.2 SATA link detect failed, 2.6.32.1 works fine In-reply-to: <9c30dffe0912230402s5af415c3i83d6f5ba4f8f1841@mail.gmail.com> X-X-Sender: fengxj@darkstar.example.net To: Bjarke Istrup Pedersen Cc: Tejun Heo , Robert Hancock , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Message-id: MIME-version: 1.0 User-Agent: Alpine 2.00 (LNX 1167 2008-08-23) References: <4B30134C.1050609@gmail.com> <51f3faa70912211708j200ab584wa835ffe50981415e@mail.gmail.com> <4B31DB17.4050509@kernel.org> <9c30dffe0912230402s5af415c3i83d6f5ba4f8f1841@mail.gmail.com> Content-Transfer-Encoding: 7bit Content-Type: TEXT/PLAIN; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, it's timing related. I just tried booting with an initrd, and i want to capture the full error message, but with initrd, the problem went away. The only difference between the two config is: --- .config.old 2009-12-24 09:16:31.000000000 +0800 +++ .config 2009-12-23 19:05:17.000000000 +0800 @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.32.2 -# Mon Dec 21 18:42:50 2009 +# Wed Dec 23 19:05:17 2009 # CONFIG_64BIT=y # CONFIG_X86_32 is not set @@ -100,7 +100,11 @@ # CONFIG_USER_NS is not set # CONFIG_PID_NS is not set # CONFIG_NET_NS is not set -# CONFIG_BLK_DEV_INITRD is not set +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="" +CONFIG_RD_GZIP=y +CONFIG_RD_BZIP2=y +CONFIG_RD_LZMA=y CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y CONFIG_ANON_INODES=y @@ -1710,8 +1714,11 @@ CONFIG_CRC32=y # CONFIG_CRC7 is not set # CONFIG_LIBCRC32C is not set -CONFIG_ZLIB_INFLATE=m +CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=m +CONFIG_DECOMPRESS_GZIP=y +CONFIG_DECOMPRESS_BZIP2=y +CONFIG_DECOMPRESS_LZMA=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y Right now, I can reproduce this problem only when I running 2.6.32.2 with a specific kernel config. If I attach a serial console or use initrd to capture the fail boot log, the problem disapeared. Even running 2.6.31.1 with the exactly same config, no problem. So I will say that it's very hard to reproduce this, it's very subtly timing related. I remember when running 2.6.32-rc8 and 2.6.32, the same problem happened twice, I just can't reproduce it. And with 2.6.31.x, never running into this. Oh well. On Wed, 23 Dec 2009, Bjarke Istrup Pedersen wrote: > Hey, > > Could it be an idea to do a bisect for the patch that makes it break? :) > > /Bjarke > --------------------------------------------------------------------------------------------------- Confidentiality Notice: The information contained in this e-mail and any accompanying attachment(s) is intended only for the use of the intended recipient and may be confidential and/or privileged of Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader of this communication is not the intended recipient, unauthorized use, forwarding, printing, storing, disclosure or copying is strictly prohibited, and may be unlawful.If you have received this communication in error,please immediately notify the sender by return e-mail, and delete the original message and all copies from your system. Thank you. ---------------------------------------------------------------------------------------------------