Index: nvme.c
===================================================================
RCS file: /cvs/src/sys/dev/ic/nvme.c,v
retrieving revision 1.103
diff -u -p -r1.103 nvme.c
--- nvme.c	31 Aug 2021 04:21:04 -0000	1.103
+++ nvme.c	31 Aug 2021 04:22:54 -0000
@@ -1673,7 +1673,7 @@ nvme_hibernate_io(dev_t dev, daddr_t blk
 			break;
 		}
 
-		delay(1);
+		CPU_BUSY_CYCLE();
 		nvme_dmamem_sync(my->sc, my->sc->sc_hib_q->q_cq_dmamem,
 		    BUS_DMASYNC_PREREAD|BUS_DMASYNC_POSTREAD);
 	}