diff --git a/sys/net/iflib.c b/sys/net/iflib.c
--- a/sys/net/iflib.c
+++ b/sys/net/iflib.c
@@ -5386,7 +5386,13 @@
 		goto fail_queues;
 	}
 
+	/*
+	 * It prevents a double-locking panic with iflib_media_status when
+	 * the driver loads.
+	 */
+	CTX_UNLOCK(ctx);
 	ether_ifattach(ctx->ifc_ifp, ctx->ifc_mac.octet);
+	CTX_LOCK(ctx);
 
 	if ((err = IFDI_ATTACH_POST(ctx)) != 0) {
 		device_printf(dev, "IFDI_ATTACH_POST failed %d\n", err);