Multicast locking LOR

[Ed Maste]

On Mon, Aug 08, 2005 at 10:34:53PM +0100, Robert Watson wrote:

> Could you add a hard-coded entry to WITNESS to place the udpinp lock
> before the in_multi_mtx in the lock order, and let me know which path
> resulted in the opposite order from this one?

I hard-coded the correct order, but am now unable to reproduce the
problem.  I guess Murphy's Law at work.  I suspect you're right about
IGMP's packet getting back into ip_input.

I'll post another message if I can get it to happen again.

-ed