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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, 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 94750C10F0B for ; Thu, 18 Apr 2019 07:53:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D8072183F for ; Thu, 18 Apr 2019 07:53:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555574013; bh=5N4XnBnp+soefsrzhGXOMdydGFtjZWDwX3Nps2n7GqU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=cs8fMS2OQ/7nq8x7M2xepxNN2AUb/K6zv2w7PTOmrmEwqWvgvB9AvzDkeoPi7umFD hdOFjM0xNZD+peahYyBFVEwh9Qb1JdwOXrJ3/N4Ka4v+EahOgUgp7WrHzfykRvOhYX gKkLDU0hTt3RP94rZbe62k9ME6gh4q/9MFCrvSZc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388211AbfDRHxc (ORCPT ); Thu, 18 Apr 2019 03:53:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:53518 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725747AbfDRHxb (ORCPT ); Thu, 18 Apr 2019 03:53:31 -0400 Received: from localhost (unknown [178.227.254.201]) (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 09D7C2183E; Thu, 18 Apr 2019 07:53:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555574011; bh=5N4XnBnp+soefsrzhGXOMdydGFtjZWDwX3Nps2n7GqU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=prIwfjA8WQ5KkCyrDrS9eMVv0436CiF9Dli+rmnLdcWLjx7wzAnoe6jTg9UJZEkYy F9RJJLwgEDFSOMExVJSxwbI9og6TMirQGjeCWZ2in2YiCazZ8Y0SXHf+01OM/WX1HE 4F8oBEpo39KVJ0w7vanKhLx0qwCoI8fS2PmVZW5s= Date: Thu, 18 Apr 2019 09:53:28 +0200 From: Greg Kroah-Hartman To: Takashi Iwai Cc: Paolo Bonzini , Sean Christopherson , Jiri Slaby , linux-kernel@vger.kernel.org Subject: Re: [REGRESSION 5.0.x] Windows XP broken on KVM Message-ID: <20190418075328.GA19532@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 09:38:52AM +0200, 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. Is this also a problem in 5.1-rc5? Those KVM tests being integrated by Linaro into the stable testing process can't come fast enough, I was told yesterday that they would be in there "soon"... thanks, greg k-h