osrm-extract triggers the address sanitizer

[TheMarex]

There is an access violation during the RTree generation. The error can be found here:

https://travis-ci.org/Project-OSRM/osrm-backend/jobs/153525915#L1824-L1882

I'm not sure if this is a false positive or points to bad code.

[oxidase]

Just created an issue google/sanitizers#715

As a workaround the alignment could be completely removed or increased to 1024 in the failed test.

[TheMarex]

Just updating from the linked issue, this is expected to go away with gcc >6.1.1. Thanks for looking into this @oxidase!

[oxidase]

@TheMarex committed to the branch fix for some "memory leaks" in TBB, that is correct behavior to prevent deinitialization fiasco for lazy-initialized tbb::task_scheduler_init in rtree.

Also there is another intended memory leak in osrm-datastore that requires change at https://github.com/Project-OSRM/osrm-backend/blob/master/include/storage/shared_memory.hpp#L70

[TheMarex]

Sadly GCC 6.1 and -fsanitizer have their problems in the ubuntu packages. For whatever reason that breaks the compilation of the example code.