Restrictions around freeing memory with bgpdump_free_memory

Hi,

  I’m running into memory access exceptions when using bgpdump_free_memory().  

  I’m collecting an interval worth of BGPDUMP_ENTRYs (1 minute worth) into buckets.  After I have a bucket full I do a pairwise computation (that can take some time) of just this buckets data on a thread (from a pool) while the main thread moves onto the second bucket (and then starts up potentially another thread on the second bucket). …

  After the thread completes its summary statistics computation, it goes to call bgpdump_free_memory() on each of the BGPDUMP_ENTRY.

  I mutex lock so that only on thread will execute in bgpdump_free_memory() at a time.

  Are there restrictions (express or implied) on how to call bgpdump_free_memory() whether multi-threaded or not?

  BTW, if I run just a single thread it does seem to work just fine.

Thanks,
Rob