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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 6A1E9C2D0EF for ; Fri, 17 Apr 2020 18:12:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4CFE122202 for ; Fri, 17 Apr 2020 18:12:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587147128; bh=VPLqjvDyglb1vtUXEqe9nCJ3f68e7xNo8c2HxQKQwjs=; h=Subject:To:Cc:References:From:Date:In-Reply-To:List-ID:From; b=uBJ5qyFKaSOwEdI2IjbLc7zWbYpzaYWVK16cG0bVpyGU1TyFtcsw5mGAhtcHtqmb+ 222lqmR+N986ITUQXNTfYg1uyYRlUzozRAJY/YKf2ZX8LqTH/VrCROzknhTSbQ3IU6 chhl9EWvfIDbvy10sj8XJnMVYc1uCMjdy6Bh2pUg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730598AbgDQSMH (ORCPT ); Fri, 17 Apr 2020 14:12:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41694 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1730323AbgDQSMG (ORCPT ); Fri, 17 Apr 2020 14:12:06 -0400 Received: from mail-il1-x143.google.com (mail-il1-x143.google.com [IPv6:2607:f8b0:4864:20::143]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 95708C061A0C for ; Fri, 17 Apr 2020 11:12:06 -0700 (PDT) Received: by mail-il1-x143.google.com with SMTP id c17so3032447ilk.6 for ; Fri, 17 Apr 2020 11:12:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=foA4DPbQhpo9xw/eOdopgrsDK8K+vfBDZATjTXoQh4I=; b=Z0MQ60xFZB3rug8cIA+FngZ0z5QTTaKj8L2zfDYreK5DCo9VyIQsbVvoQsEixaqASV Xe1eIj5eMACzhqFhfR1Ea39QY5PL+Hb/cv6dWzsZTHQF7sPy5VGNQ7qCbG/e1H2vfXzx f1QUhwZOxp3lfix1qIk/TZ32m/y8uoJ4+Rxk4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=foA4DPbQhpo9xw/eOdopgrsDK8K+vfBDZATjTXoQh4I=; b=NPx37Uqk5N8bCkfwd30+SyIlpyg/d9sjNVCKS54C84OcFHIethrU4bgd5iCVecYiwb NSG3GIWVL1YaESIwsftYOyE5OdIoj5LHcl/ADdUa8oOpV9jSgOpg+ogoSrZpGkyfZgmV ajwUHVc2NfKIg4+QwnuX3T4kdG+E+lveCO4q/cY8jRAn03bhiFGf0cGSyi82xJstufpb Bq+yzr52vH8HfUkZAv+ccV/7/25R9s/0lQIZ/3efyEno7YG/ar82pqgCxi4bqqSETKk5 QZwHQa5G5oVHQJDEaf8JXj+Ua/WZ1SI3zWs4lsgnfNHu9TcFtKwoFCMttLaf3EJzBDoX nngg== X-Gm-Message-State: AGi0PuY8T9lP8dLZdUXjand4fsaBK6hVpAaZM5jaKy/S3uXL08ZfouP5 57C53mTY3b3FPilEOT9LXZYNAg== X-Google-Smtp-Source: APiQypK0O3NmNw3iIF83xy1VuEtCksGeLHf4dXqAZp+DSBugDnssGyEy4+rb78xy7abwBzrMsiAKyw== X-Received: by 2002:a05:6e02:cd2:: with SMTP id c18mr4590069ilj.223.1587147125661; Fri, 17 Apr 2020 11:12:05 -0700 (PDT) Received: from [192.168.1.112] (c-24-9-64-241.hsd1.co.comcast.net. [24.9.64.241]) by smtp.gmail.com with ESMTPSA id v17sm8424124ill.5.2020.04.17.11.12.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 17 Apr 2020 11:12:05 -0700 (PDT) Subject: Re: Linux 5.7-rc1 reboot/poweroff hangs To: Linus Torvalds Cc: Greg Kroah-Hartman , Linux Kernel Mailing List , Prike.Liang@amd.com, Alexander Deucher , stable References: From: Shuah Khan Message-ID: Date: Fri, 17 Apr 2020 12:12:04 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/17/20 12:05 PM, Shuah Khan wrote: > Hi Linus, > > Linux 5.7-rc1 reboot/powereoff hangs on AMD Ryzen 5 PRO 2400GE > system. > > I isolated the commit to: > > Revering the following commit fixes the problem. > > commit 487eca11a321ef33bcf4ca5adb3c0c4954db1b58 > Author: Prike Liang > Date:   Tue Apr 7 20:21:26 2020 +0800 > >     drm/amdgpu: fix gfx hang during suspend with video playback (v2) > >     The system will be hang up during S3 suspend because of SMU is >     pending for GC not respose the register CP_HQD_ACTIVE access >     request.This issue root cause of accessing the GC register under >     enter GFX CGGPG and can be fixed by disable GFX CGPG before perform >     suspend. > I can send a revert, however it appears this is a fix for a suspend hang. thanks, -- Shuah