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=-2.2 required=3.0 tests=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 C49ADC33C9E for ; Thu, 30 Jan 2020 12:06:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9864A206D3 for ; Thu, 30 Jan 2020 12:06:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727193AbgA3MG0 (ORCPT ); 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