Failed assertion: "pageind >= map_bias"

Eduardo Silva edsiper at
Thu Dec 10 09:54:06 PST 2015

> You're trying to pass a pointer to free() that is within the chunk
> header.  Given that the pointer is 0x7fffdc000910, your program is probably
> doing something very wrong (e.g. corrupting a pointer, or trying to free
> memory that came from another allocator), because jemalloc will never
> provide memory to the application with such alignment (i.e. an interior
> pointer to the first page of a chunk).
Thanks, I will keep investigating. But what could be main reason of why the
default memory allocator malloc(3) is not failing ?, I cannot reproduce the
problem without jemalloc.

Eduardo Silva
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