Fix: Rehash slot_lookup_ tombstones to stop ghost entries under churn#769
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desertfury wants to merge 2 commits into
Open
Fix: Rehash slot_lookup_ tombstones to stop ghost entries under churn#769desertfury wants to merge 2 commits into
desertfury wants to merge 2 commits into
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Problem
b779c47 (#753) bounded the saturated probe but left tombstones unreclaimed, turning the CPU-spin hang into silent ghost keys.
Fix
Track tombstones and rehash to reclaim them before saturation, so live keys stay findable under churn.
Tests
cpp/ghost_repro.cppnow asserts zero ghosts; previously it leaked 1616 at a tight reserve.