From acc952d839d88a9904b259f10e5fa4c047119786 Mon Sep 17 00:00:00 2001
From: shenweip <1037567878@qq.com>
Date: Wed, 5 Aug 2020 18:43:45 +0800
Subject: [PATCH 1/2] Correct the alignment size when allocate memory at a
 position.

---
 Core/Util/BlockAllocator.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Core/Util/BlockAllocator.cpp b/Core/Util/BlockAllocator.cpp
index 02496432b1..34bf5ee618 100644
--- a/Core/Util/BlockAllocator.cpp
+++ b/Core/Util/BlockAllocator.cpp
@@ -163,7 +163,7 @@ u32 BlockAllocator::AllocAt(u32 position, u32 size, const char *tag)
 		alignedPosition &= ~(grain_ - 1);
 
 		// Since the position was decreased, size must increase.
-		alignedSize += alignedPosition - position;
+		alignedSize += position - alignedPosition;
 	}
 
 	// Upalign size to grain.

From 77da51c41820f5836209c380bfac687abbce2fcf Mon Sep 17 00:00:00 2001
From: shenweip <1037567878@qq.com>
Date: Wed, 5 Aug 2020 19:01:00 +0800
Subject: [PATCH 2/2] Also correct the allocated size.

---
 Core/Util/BlockAllocator.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Core/Util/BlockAllocator.cpp b/Core/Util/BlockAllocator.cpp
index 34bf5ee618..1b67b82a9a 100644
--- a/Core/Util/BlockAllocator.cpp
+++ b/Core/Util/BlockAllocator.cpp
@@ -169,7 +169,7 @@ u32 BlockAllocator::AllocAt(u32 position, u32 size, const char *tag)
 	// Upalign size to grain.
 	alignedSize = (alignedSize + grain_ - 1) & ~(grain_ - 1);
 	// Tell the caller the allocated size from their requested starting position.
-	size = alignedSize - (alignedPosition - position);
+	size = alignedSize - (position - alignedPosition);
 
 	Block *bp = GetBlockFromAddress(alignedPosition);
 	if (bp != NULL)