From 3e283fbc68969202e0a582e645b8cdd839ddd29b Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@prelude.(none)>
Date: Sat, 2 Jan 2010 13:17:30 +0800
Subject: [PATCH] Fixed a bug that caused physical memory allocation to be
 one-time use

---
 Kernel/Makefile.BuildNum  | 2 +-
 Kernel/arch/x86/mm_phys.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Kernel/Makefile.BuildNum b/Kernel/Makefile.BuildNum
index 40dbf54a..fc8e6128 100644
--- a/Kernel/Makefile.BuildNum
+++ b/Kernel/Makefile.BuildNum
@@ -1 +1 @@
-BUILD_NUM = 57
+BUILD_NUM = 59
diff --git a/Kernel/arch/x86/mm_phys.c b/Kernel/arch/x86/mm_phys.c
index bd8d60e4..595a5e97 100644
--- a/Kernel/arch/x86/mm_phys.c
+++ b/Kernel/arch/x86/mm_phys.c
@@ -352,6 +352,9 @@ void MM_DerefPhys(tPAddr Addr)
 	// Lock Structures
 	LOCK( &giPhysAlloc );
 	
+	if( giLastPossibleFree < Addr )
+		giLastPossibleFree = Addr;
+
 	// Dereference
 	gaPageReferences[ Addr ] --;
 	
-- 
2.20.1