前言

最近在复现一篇论文的代码时发现了一个致命问题，研究了一天，终于还是破解了。网上找了半天，一个类似的解决方案都没有，记录一下。

错误出现的代码位置：

self.feature_app_file = h5py.File(self.opt.input_app_feature, 'r', driver='core')

错误信息

Traceback (most recent call last):File "train.py", line 259, in <module>train(opt)File "train.py", line 133, in traindata = loader.get_batch('train')File "/data/czw/code/SMAN-main/dataloader.py", line 248, in get_batchtmp_fc, tmp_att, tmp_c3d_feature, tmp_token, ix, tmp_wrapped = self._prefetch_process[split].get()File "/data/czw/code/SMAN-main/dataloader.py", line 117, in gettmp = self.split_loader.next()File "/data/anaconda3/envs/video_czw/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 819, in __next__return self._process_data(data)File "/data/anaconda3/envs/video_czw/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 846, in _process_datadata.reraise()File "/data/anaconda3/envs/video_czw/lib/python3.6/site-packages/torch/_utils.py", line 369, in reraiseraise self.exc_type(msg)
KeyError: Caught KeyError in DataLoader worker process 0.
Original Traceback (most recent call last):File "/data/anaconda3/envs/video_czw/lib/python3.6/site-packages/torch/utils/data/_utils/worker.py", line 178, in _worker_loopdata = fetcher.fetch(index)File "/data/anaconda3/envs/video_czw/lib/python3.6/site-packages/torch/utils/data/_utils/fetch.py", line 44, in fetchdata = [self.dataset[idx] for idx in possibly_batched_index]File "/data/anaconda3/envs/video_czw/lib/python3.6/site-packages/torch/utils/data/_utils/fetch.py", line 44, in <listcomp>data = [self.dataset[idx] for idx in possibly_batched_index]File "/data/czw/code/SMAN-main/dataloader.py", line 231, in __getitem__att_feat = np.array(self.feature_box_file[(self.info['images'][ix]['id'])])File "h5py/_objects.pyx", line 54, in h5py._objects.with_phil.wrapperFile "h5py/_objects.pyx", line 55, in h5py._objects.with_phil.wrapperFile "/data/anaconda3/envs/video_czw/lib/python3.6/site-packages/h5py/_hl/group.py", line 288, in __getitem__oid = h5o.open(self.id, self._e(name), lapl=self._lapl)File "h5py/_objects.pyx", line 54, in h5py._objects.with_phil.wrapperFile "h5py/_objects.pyx", line 55, in h5py._objects.with_phil.wrapperFile "h5py/h5o.pyx", line 190, in h5py.h5o.open
KeyError: 'Unable to open object (bad heap free list)

反正这个bad heap free list错误是第一次见，也是第一次解决。

解决方案

其实很简单，就是把后面的 driver='core'删了，就可以了。

self.feature_app_file = h5py.File(self.opt.input_app_feature, 'r')

完结，撒花~