unzip解压缩时遇到：

warning [data/data11768/guangdong1_round1_train1_20190818.zip]:  4294967296 extra bytes at beginning or within zipfile
  (attempting to process anyway)
file #1:  bad zipfile offset (local header sig):  4294967296
  (attempting to re-compensate)
file #3876:  bad zipfile offset (local header sig):  1196474
  (attempting to re-compensate)

但是好像又不影响解压缩，搜索说缓存上限什么的，大家认为这是啥？