TypeError: can't pickle _thread.RLock objects

[suixiaodan]

When I use this command to test Lvis,

./scripts/dist_test.sh ./configs/refinemask/lvis/r50-refinemask-1x.py ../VOS_Model/mmdet/r50-lvis-1x.pth 8 --eval segm`

the following error occurred:

Traceback (most recent call last):
  File "/mnt/SSD/RefineMask/tools/test.py", line 152, in <module>
    main()
  File "/mnt/SSD/RefineMask/tools/test.py", line 137, in main
    outputs = multi_gpu_test(model, data_loader, args.tmpdir, args.gpu_collect)
  File "/mnt/SSD/RefineMask/mmdet/apis/test.py", line 92, in multi_gpu_test
    for i, data in enumerate(data_loader):
  File "/home/anaconda3/envs/VOS/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 291, in __iter__
    return _MultiProcessingDataLoaderIter(self)
  File "/home/anaconda3/envs/VOS/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 737, in __init__
    w.start()
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/process.py", line 105, in start
    self._popen = self._Popen(self)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/context.py", line 223, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/context.py", line 284, in _Popen
Traceback (most recent call last):
  File "/mnt/SSD/RefineMask/tools/test.py", line 152, in <module>
    return Popen(process_obj)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    super().__init__(process_obj)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/popen_fork.py", line 19, in __init__
    self._launch(process_obj)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/popen_spawn_posix.py", line 47, in _launch
    reduction.dump(process_obj, fp)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/reduction.py", line 60, in dump
    main()
    ForkingPickler(file, protocol).dump(obj)
  File "/mnt/SSD/RefineMask/tools/test.py", line 137, in main
TypeError: can't pickle _thread.RLock objects

Have you ever encountered this problem?

[Gang Zhang]

When I use this command to test Lvis,

./scripts/dist_test.sh ./configs/refinemask/lvis/r50-refinemask-1x.py ../VOS_Model/mmdet/r50-lvis-1x.pth 8 --eval segm`

the following error occurred:

Traceback (most recent call last):
  File "/mnt/SSD/RefineMask/tools/test.py", line 152, in <module>
    main()
  File "/mnt/SSD/RefineMask/tools/test.py", line 137, in main
    outputs = multi_gpu_test(model, data_loader, args.tmpdir, args.gpu_collect)
  File "/mnt/SSD/RefineMask/mmdet/apis/test.py", line 92, in multi_gpu_test
    for i, data in enumerate(data_loader):
  File "/home/anaconda3/envs/VOS/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 291, in __iter__
    return _MultiProcessingDataLoaderIter(self)
  File "/home/anaconda3/envs/VOS/lib/python3.6/site-packages/torch/utils/data/dataloader.py", line 737, in __init__
    w.start()
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/process.py", line 105, in start
    self._popen = self._Popen(self)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/context.py", line 223, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/context.py", line 284, in _Popen
Traceback (most recent call last):
  File "/mnt/SSD/RefineMask/tools/test.py", line 152, in <module>
    return Popen(process_obj)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    super().__init__(process_obj)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/popen_fork.py", line 19, in __init__
    self._launch(process_obj)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/popen_spawn_posix.py", line 47, in _launch
    reduction.dump(process_obj, fp)
  File "/home/anaconda3/envs/VOS/lib/python3.6/multiprocessing/reduction.py", line 60, in dump
    main()
    ForkingPickler(file, protocol).dump(obj)
  File "/mnt/SSD/RefineMask/tools/test.py", line 137, in main
TypeError: can't pickle _thread.RLock objects

Have you ever encountered this problem?

I'm so sorry about this issue. I encountered this recently, and I found it is caused by the 'self.logger' in the LVIS-api.
Just remove the variable 'self.logger' can avoid this problem. I did not encounter this before, so I thought there was something wrong with your environment and did not respond to you.