I am seeing a segfault on shutdown in the db_mysql module. My guess is that is is related to a flush to db on shutdown somewhere, we are using bulk inserts so that may be related.
opensips: segfault at 0 ip 00007fa545fb0089 sp 00007fff45002280 error 6 in db_mysql.so[7fa545fa3000+11000]
Going off the kernel message and an objdump of db_mysql.so, seems to be in the db_mysql_val2bind() function. I am working on getting a full core + back trace.