Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp1675550ybl; Thu, 30 Jan 2020 04:07:59 -0800 (PST) X-Google-Smtp-Source: APXvYqz+g6W7m1RA1tPyh8QhX98bUP9INX/diFsmfsFoYeKLKzPDIuGuHDwW3EEYneLlMMfyqDr3 X-Received: by 2002:a54:4e8d:: with SMTP id c13mr2608618oiy.27.1580386079342; Thu, 30 Jan 2020 04:07:59 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1580386079; cv=none; d=google.com; s=arc-20160816; b=qQW1q52rkACbQmg+GJAVyZRyrxQqFZo/ga7HROscD8eq1xSidzSE6RWbUs7c/rOBK2 KKlktXCpQEWxQPoXphoTWg7J+Ja9/wo87IvfIHh4gs4t4K7jQhf9F3di64Cg4IvIqrIS p2B8FyxUdKPa3IA1UDaQoiNO8wP9SD4VqyNQ+Mv3EkpXw7aCwL6++vZPQBr0Xri/vaVZ ticWvUMNYdNMG9yII7anPZ93TiYMH16nsZSY50ahSJJa2UVKm54zG5BAH8R82esgPogo nrZlgd9/s1feI6HAzJb7eHJwfq9m25CpljvbrUOwAgqm9CtzYyttdx+3mFjD4HCOLS3Y C0Ug== 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-transfer-encoding:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=4sMaNbFJGGJy8jlOyzcBtdEBIO9VkmFj/6zhPX2058o=; b=XLOIawPPGua8VC/zsNLvDKo4KsT8KG4Z+CXMFw3Gkccma0t6iWnfxUMJ+poy6B+Vqk 4e0y0+4I1ohCVUiUuB6XyBEZx5dQDB5IG1bQEaHYJtK64YWPhZH384GoD02GaAjaWtHd mfinHZEobOv1sWhwPE+kUKKhwD2yDld6S+yPF1p1Mbwd0Kd24eKGFqKKuNfpkJmxqRZk vgpmCtWfh/0iryuuYvTUNgwmOPJ9EmuXi+cJG9dha7dzzWliHZtal7nPA/8CqDGETuSR 9erPbwsgv81oNr68ym+zpPjL4unsI2UVTicCo24C2yblRegYpeLqwJt5RB9iyKS9vW0Z eR+Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id v14si3082766otn.293.2020.01.30.04.07.46; Thu, 30 Jan 2020 04:07:59 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727184AbgA3MG0 (ORCPT + 99 others); Thu, 30 Jan 2020 07:06:26 -0500 Received: from mx2.suse.de ([195.135.220.15]:60580 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726980AbgA3MG0 (ORCPT ); Thu, 30 Jan 2020 07:06:26 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id B3383B053; Thu, 30 Jan 2020 12:06:24 +0000 (UTC) Date: Thu, 30 Jan 2020 13:06:17 +0100 From: Borislav Petkov To: Mike Rapoport , Damian Tometzki Cc: Linus Torvalds , "Luck, Tony" , Ingo Molnar , Linux Kernel Mailing List , Thomas Gleixner , Borislav Petkov , Peter Zijlstra , Andrew Morton Subject: Re: [GIT PULL] x86/asm changes for v5.6 Message-ID: <20200130120617.GH6684@zn.tnic> References: <20200129132618.GA30979@zn.tnic> <20200129170725.GA21265@agluck-desk2.amr.corp.intel.com> <20200129183404.GB30979@zn.tnic> <20200130075549.GA6684@zn.tnic> <20200130111057.GA21459@linux.ibm.com> <20200130115326.GG6684@zn.tnic> <20200130115959.GA24611@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20200130115959.GA24611@linux.ibm.com> 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 Thu, Jan 30, 2020 at 01:59:59PM +0200, Mike Rapoport wrote: > I've seen similar crash with my qemu/kvm and bisected it to that commit. > > The hpet allocation is off-by-one and as a result hpet corrupts the memory > somewhere in the slab Oh wow, wonderful. Good that we have bisection in such cases - there's no way in hell I'll debug it to that. ;-\ Thanks for saving me a bunch of time. Damian, can you test the patch at the bottom of that mail: https://lore.kernel.org/lkml/202001300450.00U4ocvS083098@www262.sakura.ne.jp/ ? Thx. -- Regards/Gruss, Boris. SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG Nürnberg