Can you try with commit 16bc7b726a21108458f354aea840cdbf5d89d6d8? It should fix the double free.
There are logs showing no more shm memory, are they before increasing the shm or even after?
--- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/399#issuecomment-157524843