Details
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Improvement
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Resolution: Unresolved
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Major - P3
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None
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None
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None
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Service Arch
Description
Today this code will crash the shell with what appears to be undefined behavior
load('jstests/libs/parallelTester.js');
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var a = fork(function(a, b) {
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return a / b;
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}, 10, 2);
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a.start();
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If you run the snippet in gdb, it will show you that we're calling terminate() because the std::thread was never joined. We can provided an easier-to-debug experience for developers by tracking thread creation ourselves, and checking for open threads (and their source location) on shutdown of the test runner.