I'm seeing failures like:

test_load_dh_params (test.test_ssl.ContextTests.test_load_dh_params) ... OPENSSL_Uplink(00007FFCDC60CB00,08): no OPENSSL_Applink

The test then immediately exits.

I've seen this in the buildbots and when building locally on Windows:

https://buildbot.python.org/#/builders/1622/builds/1125

We don't see this in the GitHub actions CI because the relevant tests are skipped in debug builds:

I don't think the relevant tests use threads at all -- it seems more likely to be a build issue than a multithreading issue.

cc @itamaro @zooba