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From: Marko Zec <zec@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
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Subject: PERFORCE change 149999 for review
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http://perforce.freebsd.org/chv.cgi?CH=149999

Change 149999 by zec@zec_tca51 on 2008/09/18 11:31:49

	Attempt at fixing a strange kernel crash when exiting
	tcpdump in a vnet - strange because in the default vnet
	the crash cannot be provoked.
	
	Reported by: julian

Affected files ...

.. //depot/projects/vimage/src/sys/net/bpf.c#26 edit

Differences ...

==== //depot/projects/vimage/src/sys/net/bpf.c#26 (text+ko) ====

@@ -568,7 +568,9 @@
 	 */
 	if (d->bd_promisc) {
 		d->bd_promisc = 0;
+		CURVNET_SET(ifp->if_vnet);
 		error = ifpromisc(ifp, 0);
+		CURVNET_RESTORE();
 		if (error != 0 && error != ENXIO) {
 			/*
 			 * ENXIO can happen if a pccard is unplugged