Index: if.c
===================================================================
RCS file: /cvs/src/sys/net/if.c,v
diff -u -p -r1.734 if.c
--- if.c	9 May 2025 03:12:36 -0000	1.734
+++ if.c	13 Jun 2025 03:50:28 -0000
@@ -1202,8 +1202,10 @@ if_detach(struct ifnet *ifp)
 	ifp->if_qstart = if_detached_qstart;
 
 	/* Wait until the start routines finished. */
-	ifq_barrier(&ifp->if_snd);
-	ifq_clr_oactive(&ifp->if_snd);
+	for (i = 0; i < ifp->if_nifqs; i++) {
+		ifq_barrier(ifp->if_ifqs[i]);
+		ifq_clr_oactive(ifp->if_ifqs[i]);
+	}
 
 #if NBPFILTER > 0
 	bpfdetach(ifp);