From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752116AbcBPBiM (ORCPT ); Mon, 15 Feb 2016 20:38:12 -0500 Received: from bh-25.webhostbox.net ([208.91.199.152]:45970 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751726AbcBPBiK (ORCPT ); Mon, 15 Feb 2016 20:38:10 -0500 Subject: Re: Crashes in arm qemu emulations due to 'cpufreq: governor: Replace timers with utilization ...' To: Tony Lindgren , "Rafael J. Wysocki" References: <20160215170527.GA24453@roeck-us.net> <20160215190116.GX19432@atomide.com> <56C229A5.8020901@roeck-us.net> <20160215195839.GA19432@atomide.com> <20160215213606.GD19432@atomide.com> Cc: Viresh Kumar , "linux-pm@vger.kernel.org" , Peter Zijlstra , "Rafael J. Wysocki" , Linux Kernel Mailing List , linux-next@vger.kernel.org, "linux-arm-kernel@lists.infradead.org" From: Guenter Roeck Message-ID: <56C27D7E.4060603@roeck-us.net> Date: Mon, 15 Feb 2016 17:38:06 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 In-Reply-To: <20160215213606.GD19432@atomide.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Authenticated_sender: linux@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: authenticated_id: linux@roeck-us.net X-Authenticated-Sender: bh-25.webhostbox.net: linux@roeck-us.net X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/15/2016 01:36 PM, Tony Lindgren wrote: > * Rafael J. Wysocki [160215 12:39]: >> On Mon, Feb 15, 2016 at 8:58 PM, Tony Lindgren wrote: >>> * Guenter Roeck [160215 11:41]: >>>> On 02/15/2016 11:01 AM, Tony Lindgren wrote: >>>>> >>>>> https://kernelci.org/boot/all/job/next/kernel/next-20160215/ >>>>> >>>>> The SMP ones seem to fail with some regulator issues? >>>>> >>>> >>>> There is another problem, introduced with 6a0712f6f199e ("PM / OPP: Add >>>> dev_pm_opp_set_rate()"). The kernelci boot log for next-20160212:omap3-overo-tobi >>>> and others experience that problem. >>>> >>>> Essentially, the code now assumes that a CPU clock always has a voltage >>>> regulator attached to it, which is not correct. I sent out a patch to fix >>>> that problem a minute ago. >>> >>> Yes that fixed it thanks. >> >> Can you please also check if this alternative fix from Viresh works: >> >> https://patchwork.kernel.org/patch/8316611/ > > Yes that one too seems to fix the issue on SMP systems for > me: > > Tested-by: Tony Lindgren > Same here. Tested-by: Guenter Roeck Guenter