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=-7.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,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 675E2C43381 for ; Wed, 13 Feb 2019 22:48:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3F6DE2084E for ; Wed, 13 Feb 2019 22:48:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733155AbfBMWsM (ORCPT ); Wed, 13 Feb 2019 17:48:12 -0500 Received: from smtp1.de.adit-jv.com ([93.241.18.167]:44077 "EHLO smtp1.de.adit-jv.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726248AbfBMWsM (ORCPT ); Wed, 13 Feb 2019 17:48:12 -0500 X-Greylist: delayed 548 seconds by postgrey-1.27 at vger.kernel.org; Wed, 13 Feb 2019 17:48:10 EST Received: from localhost (smtp1.de.adit-jv.com [127.0.0.1]) by smtp1.de.adit-jv.com (Postfix) with ESMTP id BF4033C005D; Wed, 13 Feb 2019 23:39:00 +0100 (CET) Received: from smtp1.de.adit-jv.com ([127.0.0.1]) by localhost (smtp1.de.adit-jv.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nwnB-wPvfI8U; Wed, 13 Feb 2019 23:38:53 +0100 (CET) Received: from HI2EXCH01.adit-jv.com (hi2exch01.adit-jv.com [10.72.92.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by smtp1.de.adit-jv.com (Postfix) with ESMTPS id 8046D3C003A; Wed, 13 Feb 2019 23:38:53 +0100 (CET) Received: from vmlxhi-102.adit-jv.com (10.72.93.184) by HI2EXCH01.adit-jv.com (10.72.92.24) with Microsoft SMTP Server (TLS) id 14.3.435.0; Wed, 13 Feb 2019 23:38:52 +0100 Date: Wed, 13 Feb 2019 23:38:49 +0100 From: Eugeniu Rosca To: Sudeep Holla CC: "Rafael J . Wysocki" , Linux Kernel Mailing List , Linux PM , Greg Kroah-Hartman , Jisheng Zhang , Ulf Hansson , Steve Longerbeam , Joshua Frkuska , Eugeniu Rosca , Eugeniu Rosca , "Rafael J. Wysocki" Subject: Re: [PATCH v2] drivers: base: add support to skip power management in device/driver model Message-ID: <20190213223849.GA26335@vmlxhi-102.adit-jv.com> References: <20190213120137.23354-1-sudeep.holla@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20190213120137.23354-1-sudeep.holla@arm.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-Originating-IP: [10.72.93.184] Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Sudeep, I appreciate your efforts. Currently, this patch generates below warnings during s2ram on R-Car H3-Salvator-X: [ 46.874214] PM: suspend entry (deep) [ 46.878211] PM: Syncing filesystems ... done. [ 46.989148] Freezing user space processes ... (elapsed 0.004 seconds) done. [ 47.000428] OOM killer disabled. [ 47.003895] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. [ 47.226363] PM: suspend devices took 0.210 seconds [ 47.280553] Disabling non-boot CPUs ... [ 47.289157] ------------[ cut here ]------------ [ 47.294524] sysfs group 'power' not found for kobject 'index0' [ 47.300622] WARNING: CPU: 1 PID: 14 at fs/sysfs/group.c:256 sysfs_remove_group+0x78/0xc4 ---snip--- [ 47.550425] sysfs group 'power' not found for kobject 'index1' ---snip--- [ 47.807005] sysfs group 'power' not found for kobject 'index2' ---snip--- [ 48.063703] sysfs group 'power' not found for kobject 'cache' ---snip--- Complete log and .config are shared in https://gist.github.com/erosca/da9ea551033a503121de61049d77b834 Thank you, Eugeniu.