The patch over on the RH site will fix the problem though. My problem also started when I changed the subnetting to cover a broader range of subnets that also route to other locations. > -----Original Message----- > From: Eduardo Spremolla [mailto:edspremolla@xxxxxxxxxxxx] > Sent: Tuesday, May 31, 2005 6:08 AM > To: Gary W. Smith > Cc: Cian Masterson; netfilter@xxxxxxxxxxxxxxxxxxx > Subject: Re: Kernel panic when routing large pings on an XScale (IXP425). > > I experience the very same error just yesterday: > KERNEL PANIC - Not Syncing: net/ipv4/xfrm4_output.c:106 : spin_lock > (net/xfrm/xfrm_state.C : ddd2b014) already locked by > net/ipv4/xfrm4_output.c/106 > > on a Fedora Core2 box running 2.6.10-1.771_FC2 kernel and > ipsec-tools-0.5-2.fc2. > > the curiosity is that this box was running ok for more than a month with > this policies: > > spdadd 10.3.1.0/24 10.3.4.0/24 any -P in ipsec > esp/tunnel/CENTER_IP-MY_IP/require; > > spdadd 10.3.4.0/24 10.3.1.0/24 any -P out ipsec > esp/tunnel/MY_IP-CENTER_IP/require; > > and start to trouble when changed to : > > > spdadd 10.0.0.0/8 10.3.4.0/24 any -P in ipsec > esp/tunnel/CENTER_IP-MY_IP/require; > > spdadd 10.3.4.0/24 10.0.0.0/8 any -P out ipsec > esp/tunnel/MY_IP-CENTER_IP/require; > > > LALO > > > > On Mon, 2005-05-30 at 10:46 -0700, Gary W. Smith wrote: > > I experienced a similar problem when I was doing some IPSEC stuff with > > IPTABLES under RHEL 4. There was an issue with a TCP packet being > locked by > > the system and in a chain and under a certain case it would attempt to > lock > > it again. Not sure of the complete details though. > > > > Anyways, after talking with some people about my problem it had to do > with > > locking of the chain before passing it around through other chains for > IPSEC > > where it had to traverse the same table again. It sounds similar to my > > problem. Here is the link to the RedHat bug I submitted (and was > closed) > > some time ago. > > > > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=154347 > > > > It does require a kernel recompile as it's a kernel bug. > > > > Hope this helps. > > > > Gary Smith > >