From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Oester Subject: Re: [PATCH][RFC] Race in ip_conntrack_alter_reply Date: Tue, 18 May 2004 07:48:36 -0700 Sender: netfilter-devel-admin@lists.netfilter.org Message-ID: <20040518144836.GA25729@linuxace.com> References: <20040516210616.GA20291@linuxace.com> <1084784652.1909.43.camel@nienna.balabit> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Cc: netfilter-devel Return-path: To: KOVACS Krisztian Content-Disposition: inline In-Reply-To: <1084784652.1909.43.camel@nienna.balabit> Errors-To: netfilter-devel-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: List-Id: netfilter-devel.vger.kernel.org I have not tried the patch yet -- I wanted to see if anyone else thought it looked sane. Not much unique about my situation -- box with 6 interfaces, one of which is internet link. Pushing about 50mb peak per day...though the box dies at 2 - 6am when traffic is light. Doing nat for a handful of subnets, but most of the /16 is not natted. The box does run OSPF and has ~800 routes in the routing table. What specific info were you looking for? Phil On Mon, May 17, 2004 at 11:04:12AM +0200, KOVACS Krisztian wrote: > > Hi, > > 2004-05-16, v keltezéssel 23:06-kor Phil Oester ezt írta: > > I am still experiencing near daily deadlocks on a few heavily used > > firewalls here (on all kernels from ~2.4.2x - 2.6.6). > > > > In searching for a solution, I noticed that back in September 2003, > > Rusty Russell pointed out the possibility of a race in ip_conntrack_alter_reply > > and offered the below patch. > > > > The relevant threads are: > > > > http://lists.netfilter.org/pipermail/netfilter-devel/2003-September/012368.html > > http://lists.netfilter.org/pipermail/netfilter-devel/2003-September/012388.html > > > > And the patch is included below. > > Does it fix your problems? There were conversations on problems with > ip_nat_setup_info() stuck in endless loop, but I did not experience any > problems up to now. Could you provide some more info about your setup? > > -- > Regards, > Krisztian KOVACS > >