Unable to read the "master" hdf5 file after linking smaller hdf5 files to it

I have a couple of small (~20-200GBs) hdf5 files that I link together to get a single hdf5 file (as described [here](https://stackoverflow.com/a/18527687/2838606)). However, I cannot read this larger, master, hdf5 file anymore using torch-hdf5 package when using multiple threads but I can read the smaller files. I wonder if the hdf5 package has issues reading "linked" hdf5 files?

The issue names no repository files or tests. Start by reproducing the linked HDF5 setup with torch-hdf5 under multiple threads, then compare reads from the linked master file with the smaller files; done means identifying whether the failure is specific to linked files and documenting a reproducible result.

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