pbuf->len = IOCTL_OFFSET(36) + data_length(1040) + name_length(8) + name_length_alignment_offset = 1084写错了，应该是pbuf->len = IOCTL_OFFSET(36) + data_length(1048) + name_length_alignment_offset = 1084才对。

data_length=1048是包含了8字节的name_length的。