Index: madwifi-ng-r2420-20070602/ath/if_ath.c
===================================================================
--- madwifi-ng-r2420-20070602.orig/ath/if_ath.c	2007-06-04 13:21:54.479694496 +0200
+++ madwifi-ng-r2420-20070602/ath/if_ath.c	2007-06-04 13:21:55.006614392 +0200
@@ -1980,7 +1980,10 @@
 		ath_draintxq(sc);
 		if (!sc->sc_invalid) {
 			ath_stoprecv(sc);
+
+			/* XXX: this helps to avoid crashes on ifconfig down/up
 			ath_hal_phydisable(ah);
+			 */
 		} else
 			sc->sc_rxlink = NULL;
 		ath_beacon_free(sc);		/* XXX needed? */