From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: virtio-net not working with the latest qemu-kvm git Date: Wed, 06 May 2009 12:12:33 +0300 Message-ID: <4A015481.3010702@redhat.com> References: <1241455836.16915.20.camel@w-sridhar.beaverton.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Sridhar Samudrala Return-path: Received: from mx2.redhat.com ([66.187.237.31]:35142 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754467AbZEFJNK (ORCPT ); Wed, 6 May 2009 05:13:10 -0400 In-Reply-To: <1241455836.16915.20.camel@w-sridhar.beaverton.ibm.com> Sender: kvm-owner@vger.kernel.org List-ID: Sridhar Samudrala wrote: > When i moved to the latest qemu-kvm git tree from kvm-85, i noticed that > networking stopped working between the host and the guest. > It started working when i put the device in promiscuos mode by running > tcpdump in background on the guest. > > After browsing through the recent patches, i found that the following commit > is causing the regression. > > Remove stray GSO code from virtio_net (Mark McLoughlin) > http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=559a8f45f34cc50d1a60b4f67a06614d506b2e01 > > The comment doesn't seem to match with the code that is removed with this patch. > I applied a patch from Mark that fixes this. Thanks for reporting. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic.