It hangs on ubuntu about gtest-parallel HOT 2 OPEN

No idea, my Python debugging skills are really weak. For posterity, does it happen all the time or intermittently?

from gtest-parallel.

The repeat is stable. I have a google test executable that contains 50 tests.

1. If I run them directly without using gtest_parallel, then it works like a charm.
2. Five of them in one suite will hang if I run in gtest_parallel, even I run them sequentially using gtest_parallel. The other 45 tests just work fine with gtest_parallel. This is ubuntu.
3. All tests work well with gtest_parallel on MacOsx and Windows.

The only problem is to run five of those 50 tests on Ubuntu with gtest_parallel no matter sequentially or not. I found a workaround by accident. I create a shell script

#!/bin/bash
./distr/syb-test "$@"

instead of calling ./distr/syb-test, I call this bash script. Magically, everything works well like a charm.
I suspect it could be something wrong with Linux process signal (SIGILL, SIGABRT, SIGTERM, etc..) though I do not do anything in my google test.

This is really mysterious.

from gtest-parallel.