From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933611AbcFGWXy (ORCPT ); Tue, 7 Jun 2016 18:23:54 -0400 Received: from mail-wm0-f50.google.com ([74.125.82.50]:35786 "EHLO mail-wm0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161067AbcFGWXw (ORCPT ); Tue, 7 Jun 2016 18:23:52 -0400 Subject: Re: [PATCH 0/9] clocksource/drivers/clksrc-of: Improve error handling To: Geert Uytterhoeven References: <1464770093-12667-1-git-send-email-daniel.lezcano@linaro.org> Cc: Thomas Gleixner , "linux-kernel@vger.kernel.org" , linux-renesas-soc@vger.kernel.org From: Daniel Lezcano Message-ID: <57574976.6000400@linaro.org> Date: Wed, 8 Jun 2016 00:23:50 +0200 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/07/2016 11:54 AM, Geert Uytterhoeven wrote: > Hi Daniel, Hi Geert, [ ... ] > Using "earlycon keep_bootcon" on koelsch (this doesn't help on arm64) > reveals it's stuck at: > > clocksource_probe: no matching clocksources found > sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every > 21474836475000000ns > Calibrating delay loop... > Ok, so the "renesas,cmt-48-gen2" is not impacted by the changes because it uses the platform approach. Very likely, the issue is coming from the arch_arm_timer failing somewhere. Or I added a regression and the timer is wrongly returning an error, or the error is always there and now it is caught. Can you give the traces before 'clocksource_probe: no matching clocksources found' ? -- Daniel -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog