From 63cca210fa9bbad8846a59dd61ada47c3b3d45cf Mon Sep 17 00:00:00 2001
From: Egor Chesakov <Egor.Chesakov@microsoft.com>
Date: Fri, 20 Nov 2020 18:46:33 -0800
Subject: [PATCH] Always return 0x1000 in eeGetPageSize() in
 src/coreclr/src/jit/compiler.h

---
 src/coreclr/src/jit/compiler.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/coreclr/src/jit/compiler.h b/src/coreclr/src/jit/compiler.h
index d8de6c9afa075b..87782d5bea0590 100644
--- a/src/coreclr/src/jit/compiler.h
+++ b/src/coreclr/src/jit/compiler.h
@@ -7419,10 +7419,13 @@ class Compiler
 
     GenTree* eeGetPInvokeCookie(CORINFO_SIG_INFO* szMetaSig);
 
-    // Returns the page size for the target machine as reported by the EE.
+    // The following value is used by the JIT to determine when
+    // to emit a stack probing instruction sequence or a call to the stack probe helper while:
+    //   1. allocating a frame in a method prolog;
+    //   2. allocating a local heap in a method body (i.e. localloc).
     target_size_t eeGetPageSize()
     {
-        return (target_size_t)eeGetEEInfo()->osPageSize;
+        return 0x1000;
     }
 
     // Returns the frame size at which we will generate a loop to probe the stack.