Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752263AbbLUWpr (ORCPT ); Mon, 21 Dec 2015 17:45:47 -0500 Received: from mail-yk0-f170.google.com ([209.85.160.170]:36804 "EHLO mail-yk0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751661AbbLUWpo (ORCPT ); Mon, 21 Dec 2015 17:45:44 -0500 Subject: Re: Regression: Kernel unbootable since commit 4d6b4e6 - found by bisection To: "Busch, Keith" References: Cc: LKML , Jiang Liu , Hanjun Guo , Bjorn Helgaas , "Wysocki, Rafael J" From: Larry Finger Message-ID: <56788115.7030209@lwfinger.net> Date: Mon, 21 Dec 2015 16:45:41 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1321 Lines: 30 On 12/21/2015 03:24 PM, Busch, Keith wrote: >> Since early in the 4.3-rcx series, my Dell Latitude D600 with a 32-bit kernel >> fails to boot. Unfortunately, I did not discover this until late in the 4.4-rcX >> cycle. The symptom is that the kernel echos the "Loading initial ramdisk ..." >> message and then hangs. >> >> The problem was bisected to commit 4d6b4es" x86/PCI/ACPI: Use common interface >> to support PCI host bridge" from Jiang Liu . The >> bisection was tested by reverting the commit in question. I have not yet tried >> to analyze the patch to see where it might be going wrong. >> >> Please suggest any trial prints to debug this issue. > > Does this fix help you? It is included with the most recent 4.4 rc. > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=727ae8be30b428082d3519817f4fb98b712d457d Yes, that patch does fix my problem even though the commit message says it is needed for legacy AMD platforms. My laptop has a Celeron CPU, but the same considerations must apply. Thanks, Larry -- 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/