larroy commented on issue #14979: [BUG] Using a package with MKL and GPU versions, using python to open a new process will cause an error URL: https://github.com/apache/incubator-mxnet/issues/14979#issuecomment-517873461 @fierceX forking an initial process is not supported in MXNet. The first Process creation should not be done, as the state of the library after fork is inconsitent. The code in the train function is never executed. With respect to the crash, after investigating this I believe is caused by calling setenv in pthread_at_fork. I will refactor this code so unsafe calls to setenv are not done during forking. Additionally we can detect that we are in a forked state and emit additional errors in MXNet for example during the use of DataLoader.
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