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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 662EEC433EF for ; Tue, 21 Sep 2021 17:49:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 497F760EDF for ; Tue, 21 Sep 2021 17:49:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231153AbhIURvI (ORCPT ); Tue, 21 Sep 2021 13:51:08 -0400 Received: from 49-237-179-185.static.tentacle.fi ([185.179.237.49]:54722 "EHLO bitmer.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231503AbhIURvH (ORCPT ); Tue, 21 Sep 2021 13:51:07 -0400 Received: from 88-114-184-142.elisa-laajakaista.fi ([88.114.184.142] helo=[192.168.1.42]) by bitmer.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1mSjth-0008Mc-3X; Tue, 21 Sep 2021 20:49:37 +0300 Subject: Re: Regression with e428e250fde6 on BeagleBoard Rev C2 To: Tony Lindgren Cc: linux-omap@vger.kernel.org, Laurent Pinchart References: <3f6924a7-1934-b94e-2441-4781fe737f32@bitmer.com> <5de5382b-9f11-c99b-5b9b-c90ae023e10b@bitmer.com> From: Jarkko Nikula Message-ID: <638e4599-ab1d-ee88-6974-17463ce42f5c@bitmer.com> Date: Tue, 21 Sep 2021 20:49:33 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org On 9/21/21 10:00 AM, Tony Lindgren wrote: > * Jarkko Nikula [210920 16:35]: >> On 9/20/21 4:34 PM, Tony Lindgren wrote: >>> The patch below should take us back to the earlier configuration, >>> can you please give it a try? >>> >> I double checked and unfortunate it doesn't boot at all or give any >> output when patch is applied: > > Hmm I tested it with copying the beagle timer configuration to omap3.dtsi > and things worked for me. If you can, please try adding > CONFIG_SERIAL_EARLYCON=y and then also add "debug earlyprintk" to kernel > command line. It might show something that I'm not able to reproduce. > Maybe there is a bootloader dependency or something like that. > Hmm.. no luck on top of d5f6545934c4 ("qnx4: work around gcc false positive warning bug") with the patch. Nothing gets printed after "Starting kernel ...". Without the patch boots fine. Here's the full /proc/cmdline from running system: console=ttyO2,115200n8 debug earlyprintk=ttyO2,115200n8 mpurate=auto buddy=none camera=none vram=12M omapfb.mode=dvi:640x480MR-16@60 omapdss.def_disp=dvi root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait > It should be OK to keep these options enabled, except maybe not for > "debug" in the command line. > Yeah, systemd outputs some amount of debug stuff, fortunately doesn't render system unusable :-)