CODEWITHSUNDEEP
thread-sanitizer
shobhit
shobhit

Reputation: 3

TSAN: Reporting intermittent data race

I have been using TSAN build for detecting thread data races in my project and it works pretty well in most of the cases. At times, I understand TSAN could potentially report false positives, harmless races, or in-fact also miss reporting some genuine issues due to un instrumented shared libs etc, but under what situation does TSAN generates report intermittently?

Simply running a test 5-6 times, i see TSAN generating data race report for 2-3 times and missing other times (No thread race reported). I thought the behavior should be consistent always irrespective of thread(s) being scheduled by OS scheduler in any order.

Thanks,

I tried reading many articles on the internet and stack-overflow but none seems to describe why could there be an intermittent ness in this reporting.

Upvotes: 0

Views: 49

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