How Buddy Allocator Search in Filled Groups with Small Free Blocks Ranges

Let’s fill all disk, make gaps with free blocks and try to allocate large blocks ranges.

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How Buddy Allocator do filling disk from empty to full

Let’s see how ext4 buddy allocator work in with such workload

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Buddy allocator statistics

Buddy allocator collets some statistics (ext4_mb_collect_stats()).

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Fuzzing, фаззинг, in-memory fuzzing, фаззинг в памяти, vulnerability, уязвимсоти, binary code, бинарный код, static analysis, статический анализ, dynamic analysis, динамический анализ, fault injection, внедрение ошибок, CTF, information security, информационная безопасность, unit testing, тестирование