Comment 14 for bug 1238494

I confirm I'm able to reproduce this bug in Raring using the instructions in the bug description. The problem is upstream commit:

dc7b3eb ipvs: Fix reuse connection if real server is dead

It causes a NULL pointer here:
   1658 if (unlikely(sysctl_expire_nodest_conn(ipvs)) && cp && cp->dest &&
   1659 unlikely(!atomic_read(&cp->dest->weight)) && !iph.fragoffs &&
   1660 is_new_conn(skb, &iph)) {
   1661 ip_vs_conn_expire_now(cp);
   1662 __ip_vs_conn_put(cp);
   1663 cp = NULL;
   1664 }
when accessing the ipvs variable. In mainline kernel, this variable is initialised; in the 3.8 kernel it is not. I'll post a test kernel with a fix for testing. Another option is to revert the above commit.