BUG() in ip_ct_event_cache_flush()?

[David S. Miller]

I've seen an OOPS backtrace with current 2.6.x kernels
that seems to be in ip_ct_event_cache_flush().

This loop there is suspect:

	for_each_cpu(cpu) {
		ecache = &per_cpu(ip_conntrack_ecache, cpu);
		if (ecache->ct)
			ip_conntrack_put(ecache->ct);
	}

This should use "for_each_online_cpu()" I think.  Non-possible
cpus end up with percpu pointers being NULL or undefined.

Comments?