wip

ci/tsan

@@ -8,3 +8,6 @@ race:crossbeam_epoch
 # forgotten and the steal operation is then retried.
 race:crossbeam_deque*push
 race:crossbeam_deque*steal
+
+# AtomicCell::compare_exchange uses fences if it is not lock-free.
+race:crossbeam_utils::atomic::atomic_cell::AtomicCell<T>::compare_exchange

crossbeam-channel/tests/tick.rs

@@ -127,6 +127,7 @@ fn recv() {
     assert_eq!(r.try_recv(), Err(TryRecvError::Empty));
 }
 
+#[cfg(not(feature = "sanitize"))] // TODO: assertions failed due to tsan is slow
 #[test]
 fn recv_timeout() {
     let start = Instant::now();
@@ -251,6 +252,7 @@ fn select() {
     assert_eq!(hits.load(Ordering::SeqCst), 8);
 }
 
+#[cfg(not(feature = "sanitize"))] // TODO: assertions failed due to tsan is slow
 #[test]
 fn ready() {
     const THREADS: usize = 4;

crossbeam-epoch/src/collector.rs

@@ -199,6 +199,7 @@ mod tests {
         .unwrap();
     }
 
+    #[cfg(not(feature = "sanitize"))]
     #[test]
     fn incremental() {
         const COUNT: usize = 100_000;