From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754601AbbCIPGO (ORCPT ); Mon, 9 Mar 2015 11:06:14 -0400 Received: from know-smtprelay-omc-7.server.virginmedia.net ([80.0.253.71]:35521 "EHLO know-smtprelay-omc-7.server.virginmedia.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754142AbbCIPFc (ORCPT ); Mon, 9 Mar 2015 11:05:32 -0400 X-Originating-IP: [81.106.150.188] X-Spam: 0 X-Authority: v=2.1 cv=cpwVkjIi c=1 sm=1 tr=0 a=DGj713NdaxKrsjjgQne7PA==:117 a=DGj713NdaxKrsjjgQne7PA==:17 a=J0QyKEt1u0cA:10 a=IkcTkHD0fZMA:10 a=NLZqzBF-AAAA:8 a=emO1SXQWCLwA:10 a=QyXUC8HyAAAA:8 a=_O1IhNl7PEKuUyAIzg8A:9 a=QEXdDO2ut3YA:10 Date: Mon, 9 Mar 2015 15:05:30 +0000 From: Ken Moffat To: "Chen, Tiejun" Cc: Paolo Bonzini , linux-kernel@vger.kernel.org Subject: Re: Qemu e1000 broken in -rc1 and -rc2 : bisected Message-ID: <20150309150530.GA27489@milliways> References: <20150306000240.GA9960@milliways> <20150306192728.GA5032@milliways> <54FD100C.3080402@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <54FD100C.3080402@intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 09, 2015 at 11:14:20AM +0800, Chen, Tiejun wrote: > On 2015/3/7 3:27, Ken Moffat wrote: > >On Fri, Mar 06, 2015 at 12:02:40AM +0000, Ken Moffat wrote: > >> I have a very recent qemu i686 image, using a 3.19.0 kernel and > >>dhclient, which works fine if the host is running a 3.19.0 kernel, > >>but breaks when the host runs 4.0.0-rc1 or -rc2. > >> > >> On those, dhclient does not get an address, so I have no network. > >>There is a message > >>e1000 0000:00:03.0 eth0: Reset adaptor > >> > >> Before I start trying to bisect this, has anybody already seen, or > >>fixed, it ? > >> > > Bisected. > >b4eef9b36db461ca44832226fbca614db58c0c33 is the first bad commit > >commit b4eef9b36db461ca44832226fbca614db58c0c33 > >Author: Tiejun Chen > >Date: Mon Dec 22 10:32:57 2014 +0100 > > > > kvm: x86: vmx: NULL out hwapic_isr_update() in case of > >!enable_apicv > > [...] > > Did you try Linux 4.0-rc3? That includes one relevant fix, > > KVM: SVM: fix interrupt injection (apic->isr_count always 0) > > Thanks > Tiejun I've now tried -rc3, and the problem has gone. Thanks. ĸen -- Nanny Ogg usually went to bed early. After all, she was an old lady. Sometimes she went to bed as early as 6 a.m.