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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, 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 2A187C432C0 for ; Mon, 2 Dec 2019 13:45:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EEC312070B for ; Mon, 2 Dec 2019 13:45:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ElvtWJZ+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727364AbfLBNpc (ORCPT ); Mon, 2 Dec 2019 08:45:32 -0500 Received: from mail-wm1-f66.google.com ([209.85.128.66]:33237 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727362AbfLBNpc (ORCPT ); Mon, 2 Dec 2019 08:45:32 -0500 Received: by mail-wm1-f66.google.com with SMTP id y23so10774057wma.0; Mon, 02 Dec 2019 05:45:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:subject:to:message-id:date:user-agent:mime-version :content-transfer-encoding:content-language; bh=KWDqcKWZeedBFFm4F7JOnGTR8JoGKWT55ZUJbiUqPGA=; b=ElvtWJZ+cCPmklplbOUer6+D7PjFv2PbguqdRtdIrZX+lhdNwGf26thXZT8kcvfJl3 Cqsz7sp0EvgBoDYO8APYogpc5fZlsoo+r19LTAuI5LAIOZGfJu9rvaWpojExxwGyncFX 852KKF1En07cH4zXQNmLkdbPcKmmNkbhuF4xPX0oP5NCDxymAU/oSFXR7gMTiksxE5Pv ucUPUX8xgGRobywB7CwTA5/19Xzu9m+NP5+CvgU12freookq+8U2UbNVvgBqK7yvzlc3 wSlo+vpa54HQx24v1+299+ZZIpASzVXS/AjrRbHKihVM38bSWIkOLHu9nZnIFNHHuhIT fv8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:to:message-id:date:user-agent :mime-version:content-transfer-encoding:content-language; bh=KWDqcKWZeedBFFm4F7JOnGTR8JoGKWT55ZUJbiUqPGA=; b=OCqG8wUUkARqkyUVfe+LbC4JbMGKv2rlNKqYuy/6TCHWry3K9oWE7fA5t0/XnwDxDY pn7B575PG8hDBRXX3N8jvJq/mOIiR6zSzhwfdP+s2tL8oQLYzn/vD2M9oQVA8lTWIvSh NQYiyWUzxzP3dkhVNBehNk7j7L77in1i2p2AX25oN06spNkwMezTgRDZRfs/9JrlBbhJ fhg/FRsmq+fXoQTqDCyQACeKDeDxx5SHQ4G+0ZWORJLOEWWU34tpJTuT5k3hBtOWKZjC hpwoScBui74ujdB6WTjr2xKPMwCVd6QKyc4tVfRm6fCydBqk4m2ecotnAmUrKFprinkp NwGA== X-Gm-Message-State: APjAAAWtdUHsfcDzittGbSnPrzKkN+m8yuV6QIADo1mLT2fUaVFOj2xP +qf2Oys+HqmxWyQXt0bDt8xkGtbsqo4= X-Google-Smtp-Source: APXvYqxQvxkWQgON5DzxrLvp726hjj6Yq+/cWuJafSGLJxNx8m/9Oy1DkA+6xa3ov63qCMzpt/gVzQ== X-Received: by 2002:a7b:c216:: with SMTP id x22mr27960543wmi.51.1575294328217; Mon, 02 Dec 2019 05:45:28 -0800 (PST) Received: from [192.168.1.10] ([95.174.107.249]) by smtp.gmail.com with ESMTPSA id u10sm948310wmd.1.2019.12.02.05.45.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Dec 2019 05:45:27 -0800 (PST) From: Igor Plyatov Subject: Issue with imx_get_temp() To: Zhang Rui , Eduardo Valentin , Daniel Lezcano , Amit Kucheria , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Message-ID: <08794fde-cdd0-287c-62bf-e2e3b8c80686@gmail.com> Date: Mon, 2 Dec 2019 16:45:26 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Dear all, please  look at back-trace below. It happens on Freescale i.MX6 Quad. Found a few of those during power on/off stress test in the climate chamber: [ 0.657596] ------------[ cut here ]------------ [ 0.657626] WARNING: CPU: 3 PID: 150 at /home/geosig/development/oe-core-toradex-cr7/build/tmp-glibc/work-shared/cr7/kernel-source/kernel/irq/chip.c:242 __irq_startup+0x94/0xa8 [ 0.657630] Modules linked in: [ 0.657643] CPU: 3 PID: 150 Comm: kworker/3:1 Not tainted 5.1.1 #1 [ 0.657648] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 0.657660] Workqueue: events deferred_probe_work_func [ 0.657691] [<8011005c>] (unwind_backtrace) from [<8010b8c8>] (show_stack+0x10/0x14) [ 0.657709] [<8010b8c8>] (show_stack) from [<80857b04>] (dump_stack+0x88/0x9c) [ 0.657727] [<80857b04>] (dump_stack) from [<8011f308>] (__warn+0xdc/0xf4) [ 0.657741] [<8011f308>] (__warn) from [<8011f438>] (warn_slowpath_null+0x40/0x48) [ 0.657752] [<8011f438>] (warn_slowpath_null) from [<8016d1a8>] (__irq_startup+0x94/0xa8) [ 0.657762] [<8016d1a8>] (__irq_startup) from [<8016d208>] (irq_startup+0x4c/0x130) [ 0.657772] [<8016d208>] (irq_startup) from [<8016a6dc>] (enable_irq+0x44/0x90) [ 0.657790] [<8016a6dc>] (enable_irq) from [<8066f05c>] (imx_get_temp+0x1bc/0x1fc) [ 0.657804] [<8066f05c>] (imx_get_temp) from [<8066cd78>] (thermal_zone_get_temp+0x48/0x68) [ 0.657816] [<8066cd78>] (thermal_zone_get_temp) from [<8066a3e4>] (thermal_zone_device_update.part.3+0x28/0xcc) [ 0.657827] [<8066a3e4>] (thermal_zone_device_update.part.3) from [<8066afc4>] (thermal_zone_device_register+0x4ac/0x5ec) [ 0.657837] [<8066afc4>] (thermal_zone_device_register) from [<8066f580>] (imx_thermal_probe+0x3a8/0x61c) [ 0.657853] [<8066f580>] (imx_thermal_probe) from [<8054ae90>] (platform_drv_probe+0x48/0x98) [ 0.657864] [<8054ae90>] (platform_drv_probe) from [<805492a4>] (really_probe+0x228/0x2d0) [ 0.657875] [<805492a4>] (really_probe) from [<805494ac>] (driver_probe_device+0x60/0x174) [ 0.657892] [<805494ac>] (driver_probe_device) from [<805476f4>] (bus_for_each_drv+0x58/0xb8) [ 0.657903] [<805476f4>] (bus_for_each_drv) from [<80549008>] (__device_attach+0xd0/0x13c) [ 0.657914] [<80549008>] (__device_attach) from [<80548404>] (bus_probe_device+0x84/0x8c) [ 0.657923] [<80548404>] (bus_probe_device) from [<8054889c>] (deferred_probe_work_func+0x64/0x90) [ 0.657938] [<8054889c>] (deferred_probe_work_func) from [<80136fd0>] (process_one_work+0x204/0x420) [ 0.657952] [<80136fd0>] (process_one_work) from [<80137ddc>] (worker_thread+0x44/0x5bc) [ 0.657966] [<80137ddc>] (worker_thread) from [<8013cab0>] (kthread+0x144/0x14c) [ 0.657978] [<8013cab0>] (kthread) from [<801010e8>] (ret_from_fork+0x14/0x2c) [ 0.657984] Exception stack(0xd0ae1fb0 to 0xd0ae1ff8) [ 0.657992] 1fa0: 00000000 00000000 00000000 00000000 [ 0.658002] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 0.658010] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 0.658016] ---[ end trace 6bb553a60c0886bd ]--- Can somebody recommend, how to debug/resolve this issue? Best wishes. -- Igor Plyatov