cheng-chang 736c6dc59f Disable BasicLockEscalation if cannot determine whether TSAN is enabled (#7814)
Summary:
BasicLockEscalation will cause false-positive warnings under TSAN (this is a known issue in TSAN, see details in https://gist.github.com/spetrunia/77274cf2d5848e0a7e090d622695ed4e), skip this test if TSAN is enabled, or if we are not sure whether TSAN is enabled.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7814

Test Plan: watch the tsan contrun test to pass.

Reviewed By: zhichao-cao

Differential Revision: D25708094

Pulled By: cheng-chang

fbshipit-source-id: 4fc813ff373301d033d086154cc7bb60a5e95889
2020-12-27 16:18:00 -08:00
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