1 files changed, 8 insertions, 1 deletions
diff --git a/tvix/store/src/bin/tvix-store.rs b/tvix/store/src/bin/tvix-store.rs
index aeae270f3582..548176e24fa2 100644
--- a/tvix/store/src/bin/tvix-store.rs
+++ b/tvix/store/src/bin/tvix-store.rs
@@ -139,12 +139,19 @@ enum Commands {
     },
 }
 
-#[cfg(feature = "fuse")]
+#[cfg(all(feature = "fuse", not(target_os = "macos")))]
 fn default_threads() -> usize {
     std::thread::available_parallelism()
         .map(|threads| threads.into())
         .unwrap_or(4)
 }
+// On MacFUSE only a single channel will receive ENODEV when the file system is
+// unmounted and so all the other channels will block forever.
+// See https://github.com/osxfuse/osxfuse/issues/974
+#[cfg(all(feature = "fuse", target_os = "macos"))]
+fn default_threads() -> usize {
+    1
+}
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {