From fabb6d2092d4e2b84f0ec7af746baa2de34337d9 Mon Sep 17 00:00:00 2001
From: Rob Walker <rob@solana.com>
Date: Tue, 26 Mar 2019 11:37:38 -0700
Subject: [PATCH] delay freeze of status_cache until squash (#3503)

---
 runtime/src/bank.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/runtime/src/bank.rs b/runtime/src/bank.rs
index 22fd701018..ae82bdfec9 100644
--- a/runtime/src/bank.rs
+++ b/runtime/src/bank.rs
@@ -304,7 +304,11 @@ impl Bank {
 
         let parent_caches: Vec<_> = parents
             .iter()
-            .map(|b| b.status_cache.read().unwrap())
+            .map(|p| {
+                let mut parent = p.status_cache.write().unwrap();
+                parent.freeze();
+                parent
+            })
             .collect();
         self.status_cache.write().unwrap().squash(&parent_caches);
     }