From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25752C2D0DC for ; Thu, 2 Jan 2020 17:11:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE05F20866 for ; Thu, 2 Jan 2020 17:11:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727791AbgABRLp (ORCPT ); Thu, 2 Jan 2020 12:11:45 -0500 Received: from muru.com ([72.249.23.125]:49906 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726295AbgABRLo (ORCPT ); Thu, 2 Jan 2020 12:11:44 -0500 Received: from atomide.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTPS id 8FFFE8087; Thu, 2 Jan 2020 17:12:24 +0000 (UTC) Date: Thu, 2 Jan 2020 09:11:40 -0800 From: Tony Lindgren To: Arnd Bergmann Cc: Pavel Machek , Olof Johansson , kernel list , linux-arm-kernel , linux-omap , Sebastian Reichel , nekit1000@gmail.com, Marcel Partap , merlijn@wizzup.org, martin_rysavy@centrum.cz Subject: Re: Droid 4 regression in 5.5-rc1, armsoc-soc tree Message-ID: <20200102171140.GB16702@atomide.com> References: <20191228162929.GA29269@duo.ucw.cz> <20191228193622.GA13047@duo.ucw.cz> <20191230173507.GM35479@atomide.com> <20200102110025.GA29035@amd> <20200102140609.7vsfwcjyvbbrmcjx@ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Arnd Bergmann [200102 14:48]: > On Thu, Jan 2, 2020 at 3:06 PM Pavel Machek wrote: > > > # good: [ab818f0999dc73af3f966194d087e9f6650f939f] Merge tag > > # 'omap-for-v5.5/maintainers-signed' of > > # git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into > > # arm/soc > > git bisect good ab818f0999dc73af3f966194d087e9f6650f939f > > # first bad commit: [38206c24ab09b4f4c2a57de5c1af0bb2e69cf5b6] Merge tag > > # 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc > > > > ...and am not sure how to interpret the result, or what to do next :(. > > This means that either the bisection is unreliable (it might be 100% > reproducible or you mixed up good/bad once), or that the arm-soc > branch was indeed good by itself but had a conflict with some other > change that torvalds merged earlier. > > I would suggest to go back to the list I had extracted in my previous > email and revert all the commits that I identify there, on top of > linux-5.5-rc4. If some commit is not easily reverted, skip that one > at first. > > Ideally this gets you a working kernel based on -rc4, and then > you can bisect that to find which revert fixed it. Also please check your dtb is up to date. We still have a lot of stuff missing from the device tree meaning an old dtb will likely be incomplete for many devices. Regards, Tony