From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wright Subject: Re: network shutdown under heavy load Date: Tue, 9 Feb 2010 12:25:23 -0800 Message-ID: <20100209202523.GI13518@sequoia.sous-sol.org> References: <4B265E84.3070008@binaryfreedom.info> <20100119235753.GI3204@sequoia.sous-sol.org> <201001200948.05075.tahm@linux.vnet.ibm.com> <201001261559.25146.tahm@linux.vnet.ibm.com> <4B71BF94.9060200@univ-nantes.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Tom Lendacky , Chris Wright , Avi Kivity , Herbert Xu , rek2 , kvm@vger.kernel.org, markmc@redhat.com To: Jean-Philippe Menil Return-path: Received: from sous-sol.org ([216.99.217.87]:48675 "EHLO sequoia.sous-sol.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751107Ab0BIU0h (ORCPT ); Tue, 9 Feb 2010 15:26:37 -0500 Content-Disposition: inline In-Reply-To: <4B71BF94.9060200@univ-nantes.fr> Sender: kvm-owner@vger.kernel.org List-ID: * Jean-Philippe Menil (jean-philippe.menil@univ-nantes.fr) wrote: > it seems, that i encounter the same bug. > > I've a guest with an high network load, and after some time, it seems > that there's "no more network". > Under the guest, I can't ping anymore the gateway. > If i restart the guest, everything work fine again. How reproducible is this (and can you also recover the network by simply rmmod/modprobe'ing the virtio_net driver)? Tom posted a patch that you could try if you have an easy way to trigger. http://marc.info/?l=kvm&m=126564542625725&w=2 thanks, -chris