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=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham 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 25FFFC10F03 for ; Tue, 23 Apr 2019 20:23:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E51E4208E4 for ; Tue, 23 Apr 2019 20:23:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556051003; bh=3DCq5Zb34EW+i8Yo2tYYjrRyG/OsGSpKDjB2lXOW8iw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=t4plAWqQsFfcT4BO1dlH2o9KA4VW6TQVy51RK7KdYqfiy749WlmPMxtMtlFF9+84V L8KcI3gWm2USwHvSnhrjgvP1IpqRuzO1OER2pxhFjWgZUWCWRvcF6ZskKt0nR7lyKI QcNe0LrxAWH00hXK093PfRkBXDyoJCp1nB7MVuM0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727113AbfDWUXV (ORCPT ); Tue, 23 Apr 2019 16:23:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:43364 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726029AbfDWUXV (ORCPT ); Tue, 23 Apr 2019 16:23:21 -0400 Received: from localhost (62-193-50-229.as16211.net [62.193.50.229]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DC672208E4; Tue, 23 Apr 2019 20:23:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556051000; bh=3DCq5Zb34EW+i8Yo2tYYjrRyG/OsGSpKDjB2lXOW8iw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lautUO6dIfcSwgCJla2xfSHVh/5KMIURRnVoRcGgDcVtW6jaS11XVTjQ1FoyJSQ0U Xo/18cKA7iwaU7e2qedm6dlyp0iupplUIHzqBjNTvg4Y2ZHlQ4v856qApaCXCNKnh4 pakwkUa4Qkpc+EJorQFN64fYJ9Z3PJ/4waZr0XhY= Date: Tue, 23 Apr 2019 22:23:17 +0200 From: Greg Kroah-Hartman To: Paolo Bonzini Cc: Takashi Iwai , Sean Christopherson , Jiri Slaby , linux-kernel@vger.kernel.org Subject: Re: [REGRESSION 5.0.x] Windows XP broken on KVM Message-ID: <20190423202317.GA15182@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 18, 2019 at 09:56:02AM +0200, Paolo Bonzini wrote: > On 18/04/19 09:38, Takashi Iwai wrote: > > Hi, > > > > we've got a regression report on the recent 5.0.x kernel, starting > > from 5.0.6, where Windows XP can't boot on KVM any longer. > > > > The culprit seems to be the patch > > KVM: x86: update %rip after emulating IO > > with the upstream commit 45def77ebf79e2e8942b89ed79294d97ce914fa0. > > Reverting this alone fixed the problem. > > > > The report is found at openSUSE bugzilla: > > https://bugzilla.suse.com/show_bug.cgi?id=1132694 > > > > Is there already a followup fix? If not, we need to revert it from > > stable, at least. > > No, it's the first time I hear this and I actually test Windows XP > before every pull request I send to Linus... I'll download 5.0.x and > test it there. Any further ideas about this? thanks, greg k-h