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=-5.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 AFA1EC433FE for ; Fri, 3 Sep 2021 13:36:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 93AAD6101A for ; Fri, 3 Sep 2021 13:36:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235608AbhICNhe (ORCPT ); Fri, 3 Sep 2021 09:37:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54586 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235169AbhICNha (ORCPT ); Fri, 3 Sep 2021 09:37:30 -0400 Received: from mail-io1-xd36.google.com (mail-io1-xd36.google.com [IPv6:2607:f8b0:4864:20::d36]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A0491C061575 for ; Fri, 3 Sep 2021 06:36:28 -0700 (PDT) Received: by mail-io1-xd36.google.com with SMTP id y18so6789014ioc.1 for ; Fri, 03 Sep 2021 06:36:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=to:from:subject:message-id:date:user-agent:mime-version :content-language:content-transfer-encoding; bh=cY1Wm8F5T0llp0eIgP6HBdj9OsPKg/JEwgF9TxdPD2E=; b=YSkcrdB2J8wcEwS4D/GKijLOIY4v/Y6E876L+ilaDF9jhRk6W3R1n2W3D5EGMgqqHy +64y7KcVzw2HYczJc49rZFwg4DeHuJXgoaAP4qQ7HGFEA8+iHfM8YLAtNzNxoIsqB1Kp L9/Ilfl1lJ9X2lYzuhD40jdOUqcY332ESbQMn80Xzs2SMRMiqTJCwSi8//JshyfvwiLQ ZS+r3p9iGXjsQlwQLjecDWMPvCb1PFbK34wdlh35FQW79u0HyXV0/iAe1+LWAb9lmt8R cdglA+NU5eIiOmfddxiF30HC/M/lR4SVYIVpd20QSpXMli657+fO1uSAYcfxFMCFoI91 4hWA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-language:content-transfer-encoding; bh=cY1Wm8F5T0llp0eIgP6HBdj9OsPKg/JEwgF9TxdPD2E=; b=WW+KM31DhoiC1hK9c6rqfSFgw24WF2xpGCJwiFvMZ50Ee/SOEX3Kr0ElSTWO1EYeHk BIjzha84pp/sZgidK0Gn5eo/ixXah65gWu8pp4WBK7IQbIId7fD29HLLmYVRx9SsfHbt 13oSyxuz52whH+PkHlkVqx2+u8cu6cTs+dD5ZwGkHtKHoAFFk/4F5CUUuMfAMKfDZUZ1 mst8RMleAeW4H3NRZ8A1il1/wtCnrvY3l/OOQZc49zWccFIMebJQ7bX5eNwFl2DX19H5 zv7j421K+RciDdrzT54j8xfCyrywi7lIdkXCOIFCVvVssmljh1zhK+kk+AHijZHCRwMh ARiA== X-Gm-Message-State: AOAM530XGTRIuLFL8lNFjwt2Nvw27zYCiCF3UQo+rK+CFCgnMILec+/T V2k0Flc9wCEkoo5pZ4HsX8nGMQ== X-Google-Smtp-Source: ABdhPJx8KK4etGbv340Im6joRNBXx7V/zunh3pbLqwumjfD8oNuOiopsL9VpcYsE1S9AO5ol0F/VcA== X-Received: by 2002:a05:6602:2e13:: with SMTP id o19mr3172212iow.9.1630676188168; Fri, 03 Sep 2021 06:36:28 -0700 (PDT) Received: from [192.168.1.30] ([207.135.234.126]) by smtp.gmail.com with ESMTPSA id p7sm2591042iln.70.2021.09.03.06.36.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 03 Sep 2021 06:36:27 -0700 (PDT) To: LKML , Srinivas Pandruvada , "Rafael J. Wysocki" , Len Brown , inux-pm@vger.kernel.org From: Jens Axboe Subject: Bug: d0e936adbd22 crashes at boot Message-ID: <942f4041-e4e7-1b08-3301-008ab37ff5b8@kernel.dk> Date: Fri, 3 Sep 2021 07:36:27 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Booting Linus's tree causes a crash on my laptop, an x1 gen9. This was a bit difficult to pin down as it crashes before the display is up, but I managed to narrow it down to: commit d0e936adbd2250cb03f2e840c6651d18edc22ace Author: Srinivas Pandruvada Date: Thu Aug 19 19:40:06 2021 -0700 cpufreq: intel_pstate: Process HWP Guaranteed change notification which crashes with a NULL pointer deref in notify_hwp_interrupt() -> queue_delayed_work_on(). Reverting this change makes the laptop boot fine again. -- Jens Axboe