From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19]) by kanga.kvack.org (Postfix) with ESMTP id 7F48D6B0011 for ; Wed, 1 Jun 2011 06:53:47 -0400 (EDT) Message-ID: <4DE61A2B.7000008@fnarfbargle.com> Date: Wed, 01 Jun 2011 18:53:31 +0800 From: Brad Campbell MIME-Version: 1.0 Subject: Re: KVM induced panic on 2.6.38[2367] & 2.6.39 References: <4DE44333.9000903@fnarfbargle.com> <20110531054729.GA16852@liondog.tnic> <4DE4B432.1090203@fnarfbargle.com> <20110531103808.GA6915@eferding.osrc.amd.com> <4DE4FA2B.2050504@fnarfbargle.com> <4DE589C5.8030600@fnarfbargle.com> <20110601011527.GN19505@random.random> <4DE5DCA8.7070704@fnarfbargle.com> <4DE5E29E.7080009@redhat.com> <4DE60669.9050606@fnarfbargle.com> <4DE60918.3010008@redhat.com> <4DE60940.1070107@redhat.com> In-Reply-To: <4DE60940.1070107@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Avi Kivity Cc: Hugh Dickins , Andrea Arcangeli , Borislav Petkov , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-mm On 01/06/11 17:41, Avi Kivity wrote: > On 06/01/2011 12:40 PM, Avi Kivity wrote: >> >> bridge and netfilter, IIRC this was also the problem last time. >> >> Do you have any ebtables loaded? Never heard of them, but making a cursory check just in case.. brad@srv:/raid10/src/linux-2.6.39$ grep EBTABLE .config # CONFIG_BRIDGE_NF_EBTABLES is not set >> Can you try building a kernel without ebtables? Without netfilter at all? Well, without netfilter I can't get it to crash. The problem is without netfilter I can't actually use it the way I use it to get it to crash. I rebooted into a netfilter kernel, and did all the steps I'd used on the no-netfilter kernel and it ticked along happily. So the result of the experiment is inconclusive. Having said that, the backtraces certainly smell networky. To get it to crash, I have to start IE in the VM and https to the public address of the machine, which is then redirected by netfilter back into another of the VM's. I can https directly to the other VM's address, but that does not cause it to crash, however without netfilter loaded I can't bounce off the public IP. It's all rather confusing really. What next Sherlock? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org