…ced crashes on ARM based devices which have stricter alignment requirements than x86. Ideally, this code should be rewritten to pad the sizes of all "structs" and to consider all of the different architecture-specific alignment requirements. But in practice, I suspect that rounding up allocation sizes to a multiple of pointer sizes is likely good enough. This is a pragmatic one-line change that shouldn't break existing code and should prevent any of the crashes that I have observed.

…memory in a back-to-back memory allocation.