[This is the story ticket for TSAN project Q4 2025 progress. All the tickets targeted to the Q4 TSAN goals completion should be linked to this story ticket]

The goal for Q4 is to extend TSAN testing by introducing a CI job for running test format under TSAN and collecting all the warnings reported from it. As before, the priority should be given to solving only newly introduced or disagg related warnings.

Scope of the project for Q4:

• Enabling test format running under TSAN in CI
• Collecting and triaging TSAN warnings reported from test/format
• Suppressing disagg unrelated warnings
• Solving simplest cases if there are some

Out of scope for Q4:

• Solving all the Foundations DisAgg warnings reported (that should be treated as KTLO work)