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The per-region memory benchmark forced AllocMem() into one region by temporarily rewriting Exec's global MemList. That can corrupt or detach manually-added memory regions, as reported on PP&S 2000/040 RAM. Find the live MemHeader for the selected region, choose a free chunk, and allocate it with AllocAbs() instead. This keeps the benchmark buffer owned by Exec without mutating the allocator list.
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The per-region memory benchmark forced AllocMem() into one region by
temporarily rewriting Exec's global MemList. That can corrupt or detach
manually-added memory regions, as reported on PP&S 2000/040 RAM.
Find the live MemHeader for the selected region, choose a free chunk,
and allocate it with AllocAbs() instead. This keeps the benchmark
buffer owned by Exec without mutating the allocator list.