From e7e569e99cd6e66f3df3f67d1e8c7c4d4ba4d3ca Mon Sep 17 00:00:00 2001
From: Anton Likhtarov <alikhtarov@fb.com>
Date: Thu, 6 Aug 2015 15:24:56 -0700
Subject: [PATCH] Easy: disable guard pages by default

Summary: Mcrouter still enables these by default.  Tracking down a perf regression in another code path that uses fibers.

Reviewed By: @JohnRambo

Differential Revision: D2320772
---
 folly/experimental/fibers/FiberManager.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/folly/experimental/fibers/FiberManager.h b/folly/experimental/fibers/FiberManager.h
index 6f19b87e..80ebd543 100644
--- a/folly/experimental/fibers/FiberManager.h
+++ b/folly/experimental/fibers/FiberManager.h
@@ -87,7 +87,7 @@ class FiberManager : public ::folly::Executor {
     /**
      * Protect limited amount of fiber stacks with guard pages.
      */
-    bool useGuardPages{true};
+    bool useGuardPages{false};
 
     constexpr Options() {}
   };
-- 
2.34.1