↑ のようなエントリを書いていたが、0.100.2 がリリースされて次の展開を見せた

On-Access "Extra Scanning," an opt-in minor feature of OnAccess scanning on Linux systems, has been disabled due to a known issue with resource cleanup OnAccessExtraScanning will be re-enabled in a future release when the issue is resolved. In the mean-time, users who enabled the feature in clamd.conf will see a warning informing them that the feature is not active. For details, click here.

OnAccessExtraScanning は一旦 0.100.2 で disabled ( warning が出て機能は動かない) になり、また未来の featrure リリースで復活するそうです