If the SIP server dies in the middle of a call, osmo-sip-connector is in a bad state and generates a never ending stream of error messages:

58): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f258): zero length packettport(0xb7e9f25

It looks like the messages are generated from sofia-sip and I have managed to suppress the messages by setting the environment variable SU_DEBUG < 3: http://sofia-sip.sourcearchive.com/documentation/1.12.7/tport__internal_8h_e540a66790cd6f3122cd3590200b5429.html

However, it looks like osmo-sip-connector is clearly in a bad state when this happens and we need a way to detect and release these ghosted calls.