From a9c0b1c4aaa4d925a727060f38bd3566b77bfb25 Mon Sep 17 00:00:00 2001
From: "Hui, Chunyang" <sanqian.hcy@antfin.com>
Date: Wed, 18 Jan 2023 11:24:48 +0800
Subject: [PATCH] Fix kernel heap max size potentially smaller than init

---
 tools/gen_internal_conf/src/main.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/gen_internal_conf/src/main.rs b/tools/gen_internal_conf/src/main.rs
index b0e24cff..a9163dd8 100644
--- a/tools/gen_internal_conf/src/main.rs
+++ b/tools/gen_internal_conf/src/main.rs
@@ -198,7 +198,8 @@ fn main() {
                 }
                 heap_max_size
             } else {
-                parse_memory_size(DEFAULT_CONFIG.kernel_heap_max_size)
+                // If the user doesn't provide a value, use the max value as heap_max_size.
+                std::cmp::max(heap_init_size, parse_memory_size(DEFAULT_CONFIG.kernel_heap_max_size))
             }
         };