Johannes Bechberger • 1/26/2026

Reproducing a Tricky Bug in Minutes With a Custom Linux Scheduler Written in Java

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This technical article details how to use a custom Linux scheduler written in Java (concurrency-fuzz-scheduler) to reproduce a rare race condition bug (JDK-8366486) in the OpenJDK's Flight Recorder. It explains the process of provoking concurrency issues at the scheduler level to create reliable test reproducers for complex parallel bugs.

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#linux scheduler #Java #Ebpf
Reproducing a Tricky Bug in Minutes With a Custom Linux Scheduler Written in Java

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