[sr-dev] [kamailio/kamailio] crash on run_rr_callbacks() from dlg_onroute() (#1059)

[apogrebennyk]

We have latency logging enabled but there were no abnormally long delays reported. The last lines before the crash are like this:
```
Apr  5 10:19:39 sipwise1 proxy[11071]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`
,`cflags`,`pat]
Apr  5 10:19:39 sipwise1 proxy[11072]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [312 ms] for [select `received`,`contact`,`socket`
,`cflags`,`pat]
Apr  5 10:19:39 sipwise1 proxy[11073]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:39 sipwise1 proxy[11069]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [313 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:39 sipwise1 proxy[11070]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [312 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:40 sipwise1 proxy[11075]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:40 sipwise1 proxy[11074]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [438 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:40 sipwise1 proxy[11071]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:40 sipwise1 proxy[11072]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [313 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:40 sipwise1 proxy[11073]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:41 sipwise1 proxy[11069]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [312 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:41 sipwise1 proxy[11070]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [313 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:41 sipwise1 proxy[11075]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:42 sipwise1 proxy[11072]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [312 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:42 sipwise1 proxy[11071]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [312 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:42 sipwise1 proxy[11074]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [438 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:42 sipwise1 proxy[11073]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:42 sipwise1 proxy[11069]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [313 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:42 sipwise1 proxy[11070]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [312 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:43 sipwise1 proxy[11075]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:43 sipwise1 proxy[11072]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [313 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:43 sipwise1 proxy[11071]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [312 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:43 sipwise1 proxy[11073]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:43 sipwise1 proxy[11074]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [438 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:44 sipwise1 proxy[11069]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:44 sipwise1 proxy[11070]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [313 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:44 sipwise1 proxy[11075]: NOTICE: <core> [db_query.c:60]: db_do_submit_query(): alert - query execution too long [375 ms] for [select `received`,`contact`,`socket`,`cflags`,`pat]
Apr  5 10:19:44 sipwise1 proxy[11056]: ALERT: <core> [main.c:740]: handle_sigs(): child process 11061 exited by a signal 11
Apr  5 10:19:44 sipwise1 proxy[11056]: ALERT: <core> [main.c:743]: handle_sigs(): core was generated
```

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