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ddd5411472
We now keep a separate queue of empty ChunkedBlocks in each allocator. The underlying memory for each block is mprotect'ed with PROT_NONE to provoke crashes on use-after-free. This is not going to catch *all* use-after-frees, but if it catches some, that's still pretty nice. :^) The malloc memory region names are now updated to reflect their reuse status: "malloc: ChunkedBlock(size) (free/reused)"