From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: BUG: soft lockup detected on CPU#0! (2.6.18.2 plus hacks) Date: Thu, 04 Jan 2007 09:04:29 -0800 Message-ID: <459D339D.7010603@candelatech.com> References: <20070104080351.GA1740@ff.dom.local> <20070104082930.GB7006@gondor.apana.org.au> <20070104085014.GA2500@ff.dom.local> <20070104102707.GA7662@gondor.apana.org.au> <20070104110435.GA3175@ff.dom.local> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Herbert Xu , David Stevens , netdev@vger.kernel.org Return-path: Received: from ns2.lanforge.com ([66.165.47.211]:56576 "EHLO ns2.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932241AbXADRDV (ORCPT ); Thu, 4 Jan 2007 12:03:21 -0500 To: Jarek Poplawski In-Reply-To: <20070104110435.GA3175@ff.dom.local> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Jarek Poplawski wrote: > On Thu, Jan 04, 2007 at 09:27:07PM +1100, Herbert Xu wrote: > >> On Thu, Jan 04, 2007 at 09:50:14AM +0100, Jarek Poplawski wrote: >> >>> Could you explain? I can see some inet_rtm_newaddr >>> interrupted. For me it could be e.g.: >>> >>> after >>> vconfig add eth0 9 >>> >>> ip addr add dev eth0.9 ... >>> >> Whether eth0.9 is up or not does not affect this at all. The spin >> locks are initialised (and used) when the first IPv4 address is added, >> not when the device comes up. >> > > I understand this. I consider IFF_UP as a sign all > initialisations (open functions including) are > completed and there is permission for working (so > logically, if I would do eth0.9 down all traffic > should be stopped, what probably isn't true now). > It is certainly valid for an interface to be IF_UP, but have no IP address. My application does bring the network device up before it assigns the IP, for instance. There may be other issues with IF_UP, but that could be handled with a different investigation. If you have a particular test case that fails with 802.1Q VLANs, then I will be happy to work on it... Thanks, Ben > Jarek P. > - > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Ben Greear Candela Technologies Inc http://www.candelatech.com