On Mon, 2010-02-01 at 10:17 -0500, Kyle McMartin wrote: > On Sun, Jan 31, 2010 at 04:12:07AM -0500, Jon Masters wrote: > > The disabling of netfilter on bridges is not really "solving" this > > problem. The problem is that the hashing code needs fixing. Until that > > changes, whenever libvirtd plays with namespaces (as it does), we run > > the risk of falling over as we play with the size of the hashtables. > > > > Thanks for the heads up, Jon. I'll watch this and the internal thread > for a fix. Well, I sent a summary for why it happens. It happens because an IPv6 error (set via icmpv6_error) causes us to set the conntrack (ct) for an incoming skb to nf_conntrack_untracked (a catchall struct). We then try to free that like any other conntrack, back into the (now per-namespace) cache, but it's not a SL[U]B allocated struct, it's a static...boom. The conntrack code should catch this and error it, it should also do per-namespace cache allocation, and per-namespace hashtable metadata. I'm *very* surprised if this isn't biting a lot more Fedora users. Jon. _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel
