diff --git a/VKernel/Kernel/drivers/fs/fat32/fat32_types.vp b/VKernel/Kernel/drivers/fs/fat32/fat32_types.vp
index a9160f4..1d0453d 100644
--- a/VKernel/Kernel/drivers/fs/fat32/fat32_types.vp
+++ b/VKernel/Kernel/drivers/fs/fat32/fat32_types.vp
@@ -1716,11 +1716,11 @@ def handle_alloc() -> fileobj | t.CPtr:
 	for i in range(MAX_HANDLES):
 		if not handle_table[i].is_open:
 			return c.Addr(handle_table[i])
-	# [DIAG] 表满定位：打印 handles_initialized 与前几个 handle 的 is_open
-	_dha: t.CArray[t.CChar, 96]
-	viperlib.snprintf(c.Addr(_dha), 96, "[handle] full init=%d h0=%d h1=%d h2=%d h3=%d\n",
+	# [DIAG] 表满定位：打印 handles_initialized 与前几个 handle 的 is_open + 表地址
+	_dha: t.CArray[t.CChar, 120]
+	viperlib.snprintf(c.Addr(_dha), 120, "[handle] full init=%d h0=%d h1=%d h2=%d h3=%d addr=0x%lx\n",
 		handles_initialized, handle_table[0].is_open, handle_table[1].is_open,
-		handle_table[2].is_open, handle_table[3].is_open)
+		handle_table[2].is_open, handle_table[3].is_open, t.CUInt64T(c.Addr(handle_table[0])))
 	serial.puts(c.Addr(_dha))
 	return None