Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757577AbcC2Q1P (ORCPT ); Tue, 29 Mar 2016 12:27:15 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43007 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752321AbcC2Q1N (ORCPT ); Tue, 29 Mar 2016 12:27:13 -0400 Subject: Re: kvm: repeatable kernel crash with Athlon II cpu To: Stas Sergeev , kvm@vger.kernel.org References: <56FA9DB1.4060704@list.ru> <56FAA135.1080600@redhat.com> <56FAA88C.3050800@list.ru> Cc: Stas Sergeev , Linux kernel From: Paolo Bonzini Message-ID: <56FAACDC.1010802@redhat.com> Date: Tue, 29 Mar 2016 18:27:08 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <56FAA88C.3050800@list.ru> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 868 Lines: 29 On 29/03/2016 18:08, Stas Sergeev wrote: > > > I've been running dosemu and found out that it hangs > > > or reboots one of my PCs. This happens with any fedora-23 > > > kernels and hand-compiled kernels. The latest I tried, were: > > > 4.4.6-300.fc23.x86_64 > > > 4.5.0-rc6 > > > > Can you check if 4.3 works? > > Same crash on kernel-4.2.3-300.fc23.x86_64 - the oldest > available for f23. > >>> >> Hope someone can find such an old CPU an reproduce the problem. >>> >> Please let me know what info should I provide or what debugging >>> >> to do to help getting that fixed. >> > >> > Do you have experience bisecting the kernel? If so perhaps you can try >> > doing that. > But it looks like a genuine bug, not a regression. Yeah, I was hoping it was introduced recently. > Of course I can check some 3.x versions... That would help a lot, thanks. Paolo