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=-8.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT 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 BF5F2ECDE4B for ; Thu, 8 Nov 2018 15:49:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 937DC20827 for ; Thu, 8 Nov 2018 15:49:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 937DC20827 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=atomide.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727440AbeKIBZg (ORCPT ); Thu, 8 Nov 2018 20:25:36 -0500 Received: from muru.com ([72.249.23.125]:53458 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726584AbeKIBZg (ORCPT ); Thu, 8 Nov 2018 20:25:36 -0500 Received: from atomide.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTPS id DA38D8047; Thu, 8 Nov 2018 15:49:29 +0000 (UTC) Date: Thu, 8 Nov 2018 07:49:26 -0800 From: Tony Lindgren To: Olof Johansson Cc: Linus Torvalds , guillaume.tucker@collabora.com, ARM-SoC Maintainers , Linux Kernel Mailing List , Linux ARM Mailing List , linux-omap@vger.kernel.org Subject: Re: [GIT PULL] ARM: SoC fixes Message-ID: <20181108154926.GI56134@atomide.com> References: <20181107171023.zoo6qox5eewy3pmk@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Olof Johansson [181107 09:28]: > On Wed, Nov 7, 2018 at 9:17 AM Linus Torvalds > wrote: > > > > On Wed, Nov 7, 2018 at 9:10 AM Olof Johansson wrote: > > > > > > ARM: SoC fixes > > > > Pulled. > > > > > I was a bit too trigger happy to enable PREEMPT on multi_v7_defconfig, > > > and it ended up regressing at least BeagleBone XM boards. > > > > Odd. Did it hit some "may_sleep()" test in a driver that is hidden by > > preempt being off? Otherwise I don't see how/why preempt should fail > > in a board-specific manner.. > > The board hangs early during boot and the usual way of collecting > early console doesn't seem to work when attempted (I haven't tried > personally). > > It's one of the major non-SMP platforms covered by tests. I'd be > surprised if it turns out to be truly _board_ specific (and rather > specific to OMAP3), but we don't have enough data yet. Chances are it > either shuffles some timing around or indeed hits a may_sleep() test > somewhere. > > (I just realized I might have missed to attribute Guillaume in the > revert patch. Sorry about that). Looks like we're missing the stdout-path for earlycon, maybe try with the following patch? I can't find my Beagleboard-xm right now, time to clean-up a bit I guess. At least omap3-evm, logicpd-torpedo and n900 all boot with PREEMPT. Regards, Tony 8< ---------------------- >From tony Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 8 Nov 2018 07:43:28 -0800 Subject: [PATCH] ARM: dts: Add missing earlycon UART for Beagleboard We can get early boot messages if CONFIG_SERIAL_EARLYCON=y is set, and kernel commandline has debug earlycon. But we're missing the related dts entry for Beagleboard. Signed-off-by: Tony Lindgren --- Note: Untested, I can't find my Beagleboard-XM right now.. --- arch/arm/boot/dts/omap3-beagle.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts --- a/arch/arm/boot/dts/omap3-beagle.dts +++ b/arch/arm/boot/dts/omap3-beagle.dts @@ -24,6 +24,10 @@ reg = <0x80000000 0x10000000>; /* 256 MB */ }; + chosen { + stdout-path = &uart3; + }; + aliases { display0 = &dvi0; display1 = &tv0; -- 2.19.1