samskalicky commented on issue #13438: libc getenv is not threadsafe URL: https://github.com/apache/incubator-mxnet/issues/13438#issuecomment-448006700 So far, we've been able to verify that compiling mxnet without openmp does not trigger the segfault. This validates that the problem is between one thread in mxnet running openmp and another thread in mxnet calling getenv. Thus the current workaround (to avoid the segfault) is to recompile mxnet without openmp. This will cause performance degredation for any operators that used to run using openmp (ie. those that are not using BLAS/LAPACK routines or MKLDNN).
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