diff --git a/framework/jinux-frame/src/vm/frame.rs b/framework/jinux-frame/src/vm/frame.rs
index 89931667f..2cce294fb 100644
--- a/framework/jinux-frame/src/vm/frame.rs
+++ b/framework/jinux-frame/src/vm/frame.rs
@@ -359,6 +359,24 @@ impl VmFrame {
             PAGE_SIZE,
         )
     }
+
+    pub fn as_ptr(&self) -> *const u8 {
+        super::paddr_to_vaddr(self.start_paddr()) as *const u8
+    }
+
+    pub fn as_mut_ptr(&self) -> *mut u8 {
+        super::paddr_to_vaddr(self.start_paddr()) as *mut u8
+    }
+
+    pub fn copy_from_frame(&self, src: &VmFrame) {
+        if Arc::ptr_eq(&self.frame_index, &src.frame_index) {
+            return;
+        }
+        // Safety: src and dst is not overlapped.
+        unsafe {
+            core::ptr::copy_nonoverlapping(src.as_ptr(), self.as_mut_ptr(), PAGE_SIZE);
+        }
+    }
 }
 
 impl VmIo for VmFrame {
diff --git a/services/libs/jinux-std/src/vm/vmo/mod.rs b/services/libs/jinux-std/src/vm/vmo/mod.rs
index 5f8a739c1..a494eba77 100644
--- a/services/libs/jinux-std/src/vm/vmo/mod.rs
+++ b/services/libs/jinux-std/src/vm/vmo/mod.rs
@@ -216,12 +216,12 @@ impl VmoInner {
         if self.should_share_frame_with_parent(write_page) {
             return Ok(inherited_frame);
         }
-
+        
         let frame = {
             let options = VmAllocOptions::new(1);
             VmFrameVec::allocate(&options)?.pop().unwrap()
         };
-        frame.write_bytes(0, &*tmp_buffer)?;
+        frame.copy_from_frame(&inherited_frame);
         Ok(frame)
     }