From mboxrd@z Thu Jan 1 00:00:00 1970 From: Komuro Subject: Re: [BUG kernel 2.6.25-rc3 IPV6] ping6 -I eth0 ff02::1 causes system hang. Date: Sat, 8 Mar 2008 14:20:50 +0900 Message-ID: <20080308142050.0af62ced.komurojun-mbn@nifty.com> References: <20071006132601.f944f461.komurojun@nifty.com> <20071014073658.d4352b8c.komurojun@nifty.com> <20080302210716.69727582.komurojun-mbn@nifty.com> <20080308134410.69d07a2d.komurojun-mbn@nifty.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, yoshfuji@linux-ipv6.org To: Komuro Return-path: In-Reply-To: <20080308134410.69d07a2d.komurojun-mbn@nifty.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Hi, sorry, this problem exist on 2.6.25-rc2. but it seems to be fixed on 2.6.25-rc3. Best Regards Komuro > Hi, > > >Hmm, I've never seen this on our testlab. Anyone else? > > Could you send 20(twenty) or more ping packets? > > > >It would be great if you have chance to bisect it...On Sun, 2 Mar 2008 21:07:16 +0900 > > The bad commit is below. > > 69cc64d8d92bf852f933e90c888dfff083bd4fc9 is first bad commit > commit 69cc64d8d92bf852f933e90c888dfff083bd4fc9 > Author: David S. Miller > Date: Mon Feb 11 21:45:44 2008 -0800 > > [NDISC]: Fix race in generic address resolution > > Frank Blaschka provided the bug report and the initial suggested fix > for this bug. He also validated this version of this fix. > > > > > > Hi, > > > > On kernel 2.6.25-rc3, IPV6 multicast ping causes system hang > > after sending several multicast ping packet. > > > > >ping6 -I eth0 ff02::1 > > > > This problem does not happen on kernel 2.6.24. > > (does not depend on NIC) > > > Best Regards > Komuro > > > -- Komuro