• Version: 1.35.0
• Platform: Linux ff1cd0dbd074 4.15.0-1067-aws use uv_tcp_keepalive on windows xp will cause uv_tcp_connect fail #71-Ubuntu SMP Thu Apr 30 13:51:43 UTC 2020 x86_64 Linux

The lazy initialization of fast_clock_id can race when two uv loops are spawned from the same process. The race (introduced in 21c37a7) seems harmless as the initialization seems deterministic, but it makes TSAN complain.