Received: by 2002:a05:6a10:a0d1:0:0:0:0 with SMTP id j17csp1784671pxa; Thu, 6 Aug 2020 16:15:34 -0700 (PDT) X-Google-Smtp-Source: ABdhPJykDU5o2Ku+aXbyMG94RVlQRXd+0HfgoPn+wBJNH+AstUIdbIJDLra/RiPjozkVxReQsd6Z X-Received: by 2002:a17:906:d92c:: with SMTP id rn12mr6423824ejb.187.1596755734721; Thu, 06 Aug 2020 16:15:34 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1596755734; cv=none; d=google.com; s=arc-20160816; b=wXwGy4NYeNcekKq1DIY1VktETC1z1/NVGADq7CrZMB7gcU3ddOPN1M0hTF8W6RVhnl u3XGyTnC/e1ILCprSVxGxfUGeXlknqIBi/Y8PnyJSXwdnpyRdUn5I454TenOqIQTg1Z/ t3Zjsxlmiu28+Og+qRUwwIQ9XLJOGZZ7jcADr0t1nilPQjR5vVW0YUuEVEvyZ/zX1aDN 3+flT9wKKuF7/bIXy3ByQBSd1dDBtYr37t528TKnMWC28O4V07VBLUfub1Nhqap4awg0 tUlsO3doB5Ot1StMgxWAJQkD1wHllNfIZX9TP/L74zuFabfOtfJYEWZePeS3nG4XQDdQ wTzA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=/iswEfrGP9znq4BVxdKP+twmkdQP6VcCkeXRKtzSXqI=; b=QquJY1GQVqIEKzmGxambTr9vyJiAdG8IGXDka+D8x839pvuGOuZMNXyNVGzRhbI2/8 1krcOfXKffRseuDnq9HXjJofldVXAjOpaNGEAxxtNUGOp08Y2rGALcHbxTTHJFz1jSLo K4IC9Wt6v1ld9+GxyblK4nQjnfIr1j7OnQKUn6fKuzfokvm80u7dZNqahr56k8A/qTr0 FlyGiA5vJjd7qviHoqzVs1arBILfWizJf/egEwI1SZOegV/lqWOVnobsWUaNwpDwWbQl Vqoiv5mGxsPYNIu9SQ3vosTVKkP5rM9YKjheWaP8sRQTkp3EAIouCgbfG+RHp70DO9r2 zguw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id q22si3977941eds.346.2020.08.06.16.15.10; Thu, 06 Aug 2020 16:15:34 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726013AbgHFXMy (ORCPT + 99 others); Thu, 6 Aug 2020 19:12:54 -0400 Received: from mx2.suse.de ([195.135.220.15]:37350 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725272AbgHFXMx (ORCPT ); Thu, 6 Aug 2020 19:12:53 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 320BBB5A9; Thu, 6 Aug 2020 23:13:10 +0000 (UTC) Date: Fri, 7 Aug 2020 01:12:50 +0200 From: Joerg Roedel To: "Jason A. Donenfeld" Cc: Ingo Molnar , Linus Torvalds , linux-kernel@vger.kernel.org, Thomas Gleixner , Borislav Petkov , Peter Zijlstra , Andrew Morton Subject: Re: [GIT PULL] x86/mm changes for v5.9 Message-ID: <20200806231250.GA27140@suse.de> References: <20200803190354.GA1293087@gmail.com> <20200805110348.GA108872@zx2c4.com> <20200806225651.GC24304@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200806225651.GC24304@suse.de> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 07, 2020 at 12:56:51AM +0200, Joerg Roedel wrote: > I still don't fully understand why, but its late here and my head spins. > So I take another look tomorrow in the hope to understand it better. I think I know what the bug is, I am calling p4d_offset(pgd, addr) without checking for pgd_none() first. That is still a bug in the code wich needs fixing, even with the revert. Joerg