From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Woerner Subject: Re: kernel crash in nf_nat_move_storage Date: Wed, 30 Jan 2008 17:24:38 +0100 Message-ID: <47A0A4C6.4040705@redhat.com> References: <47A062BF.1010008@redhat.com> <47A07BE3.7000600@trash.net> <47A09CC8.8060608@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: netfilter-devel@vger.kernel.org To: Patrick McHardy Return-path: Received: from mx1.redhat.com ([66.187.233.31]:44997 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761052AbYA3QYm (ORCPT ); Wed, 30 Jan 2008 11:24:42 -0500 In-Reply-To: <47A09CC8.8060608@redhat.com> Sender: netfilter-devel-owner@vger.kernel.org List-ID: 2.6.24 seems to be ok on i386 also, but on x86_64 it is crashing. Thomas Woerner wrote: > Hello Patrick, > > after sucessfully testing 2.6.23.14-107.fc8 on my i386 test system, I > installed 2.6.23.14-107.fc8 on the x86_64 system. At first I was not > able to reproduce the problem, but after starting the ftp server > (vsftpd) and using 'echo "quit" | telnet test-x86_64 80' several times, > I got a backtrace again. Please have a look at the attachment. > > Thanks, > Thomas > > Patrick McHardy wrote: >> Thomas Woerner wrote: >>> Hello, >>> >>> Using port forwarding from port 80 to 21 with nf_conntrack_ftp loaded >>> results in a kernel crash, when connecting to port 80 from a remote >>> host. This seems to be a problem for kernels > 2.6.18 including 2.6.24. >>> >>> Steps to Reproduce: >>> >>> host1> iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j >>> DNAT --to :21 >>> host1> iptables -t filter -A INPUT -i eth0 -m state --state NEW -m >>> tcp -p tcp --dport 21 -j ACCEPT >>> host1> modprobe ip_conntrack_ftp >>> host2> telnet host1 80 >>> >>> Attached is the kernel crash log for kernel 2.6.23.9-85.fc8PAE. I was >>> told that this kernel crash dump is incomplete, but it took several >>> attempts to get a log with more that 5 lines over serial console. The >>> kernel seems to die too fast. >> >> >> This is already fixed in 2.6.23.10. >> - >> To unsubscribe from this list: send the line "unsubscribe >> netfilter-devel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- Thomas Woerner Software Engineer Phone: +49-711-96437-310 Red Hat GmbH Fax : +49-711-96437-111 Hauptstaetterstr. 58 Email: Thomas Woerner D-70178 Stuttgart Web : http://www.redhat.de/