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Date: Fri, 22 Feb 2008 15:26:09 +0900
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From: gnn@hudson-trading.com
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Cc: Rob Watt <rob@hudson-trading.com>, "Bruce M. Simpson" <bms@freebsd.org>,
	freebsd-net@freebsd.org
Subject: Re: panic in 6.3-RELEASE when multi-cast client exits
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FYI this is fixed by a one line change that is about to hit 6-STABLE:

@@ -991,7 +991,6 @@
 	 * a new record.  Otherwise, we are done.
 	 */
 	if (ifma->ifma_protospec != NULL) {
-		if_delmulti_ent(ifma);	/* We don't need another reference */
 		IN_MULTI_UNLOCK();
 		IFF_UNLOCKGIANT(ifp);
 		return ifma->ifma_protospec;

Sent to me by Stephan Uphoff.

I tested it today.

Best,
George