diff --git a/src/test/bench/task-perf-one-million.rs b/src/test/bench/task-perf-one-million.rs
index e1a5253444f..e1366a3a869 100644
--- a/src/test/bench/task-perf-one-million.rs
+++ b/src/test/bench/task-perf-one-million.rs
@@ -10,6 +10,8 @@
 
 // Test for concurrent tasks
 
+// xfail-test OOM on linux-32 without opts
+
 use std::comm::*;
 use std::os;
 use std::task;