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I am currently using dlmalloc() to see how much faster it can be than the original libc malloc().
However, running free() keeps giving me a segmentation fault…
Does anyone know some logical reasons why this could keep happening?
A segfault inside the memory management functions almost always indicates that you’ve done something wrong (like overwriting memory beyond the valid bounds) before the call that actually segfaults.
Running your code under Valgrind may help you determine the real source of the problem.