diff --git a/module/zfs/spa.c b/module/zfs/spa.c
index 0ca41faee5d8..ec99154a21f0 100644
--- a/module/zfs/spa.c
+++ b/module/zfs/spa.c
@@ -1265,7 +1265,7 @@ load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value)
 	nvsize = *(uint64_t *)db->db_data;
 	dmu_buf_rele(db, FTAG);
 
-	packed = kmem_alloc(nvsize, KM_SLEEP);
+	packed = kmem_alloc(nvsize, KM_SLEEP | KM_NODEBUG);
 	error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed,
 	    DMU_READ_PREFETCH);
 	if (error == 0)
diff --git a/module/zfs/zfs_ioctl.c b/module/zfs/zfs_ioctl.c
index 68ac9fde5100..26abf568e1d7 100644
--- a/module/zfs/zfs_ioctl.c
+++ b/module/zfs/zfs_ioctl.c
@@ -893,7 +893,7 @@ get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp)
 	if (size == 0)
 		return (EINVAL);
 
-	packed = kmem_alloc(size, KM_SLEEP);
+	packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG);
 
 	if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size,
 	    iflag)) != 0) {