Index: sys/cam/ctl/ctl_frontend_iscsi.c
===================================================================
--- sys/cam/ctl/ctl_frontend_iscsi.c	(revision 338426)
+++ sys/cam/ctl/ctl_frontend_iscsi.c	(working copy)
@@ -1457,7 +1457,7 @@ cfiscsi_offline(void *arg)
 				break;
 		}
 		if (cs != NULL)
-			cv_wait(&softc->sessions_cv, &softc->lock);
+			cv_wait_sig(&softc->sessions_cv, &softc->lock);
 	} while (cs != NULL && ct->ct_online == 0);
 	mtx_unlock(&softc->lock);
 	if (online > 0)