I am seeing quite a few crashes from my modules, like this: # xtensa-esp32-elf-addr2line -pfiaC -e 3.1.008-76-ga33b30e.ovms3.elf 0x4008fac5 0x40090355 0x4008f23f 0x400914a1 0x40083e6a 0x4020c6b3 0x400f514d 0x400f69cb 0x400f6d95 0x400f705f 0x400f3cba 0x400eafe6 0x400eb035 0x4008fac5: uxPortCompareSet at /home/openvehicles/build/esp-idf/components/freertos/tasks.c:3564 (inlined by) vPortCPUAcquireMutexIntsDisabledInternal at /home/openvehicles/build/esp-idf/components/freertos/portmux_impl.inc.h:86 (inlined by) vPortCPUAcquireMutexIntsDisabled at /home/openvehicles/build/esp-idf/components/freertos/portmux_impl.h:98 (inlined by) vTaskEnterCritical at /home/openvehicles/build/esp-idf/components/freertos/tasks.c:4267 0x40090355: xTaskIncrementTick at /home/openvehicles/build/esp-idf/components/freertos/tasks.c:3564 0x4008f23f: xPortSysTickHandler at /home/openvehicles/build/esp-idf/components/freertos/port.c:406 0x400914a1: _frxt_timer_int at /home/openvehicles/build/esp-idf/components/freertos/portasm.S:303 0x40083e6a: _xt_lowint1 at /home/openvehicles/build/esp-idf/components/freertos/xtensa_vectors.S:1105 0x4020c6b3: esp_vApplicationWaitiHook at /home/openvehicles/build/esp-idf/components/esp32/freertos_hooks.c:66 0x400f514d: mg_sock_addr_to_str at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400f69cb: mg_http_handler2 at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400f6d95: mg_mgr_handle_conn at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400f705f: mg_socket_if_poll at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400f3cba: mg_add_conn at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400eafe6: OvmsNetManager::ListConnections(int, OvmsWriter*) at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/main/ovms_netmanager.cpp:685 0x400eb035: OvmsNetManager::CloseConnection(unsigned int) at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/main/ovms_netmanager.cpp:702 [root@markhk8 edge]# xtensa-esp32-elf-addr2line -pfiaC -e 3.1.008-76-ga33b30e.ovms3.elf 0x400f6893 0x400f7edc 0x4011e623 0x4011e729 0x4011e9e2 0x400f8306 0x400f514d 0x400f69cb 0x400f6d95 0x400f705f 0x400f3cba 0x400eafe6 0x400eb035 0x400f6893: mg_http_handler2 at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400f7edc: mg_send_mqtt_handshake_opt at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x4011e623: OvmsServerV3::Ticker1(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, void*) at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/ovms_server_v3/src/ovms_server_v3.cpp:841 0x4011e729: OvmsServerV3::IncomingPubRec(int) at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/ovms_server_v3/src/ovms_server_v3.cpp:488 0x4011e9e2: OvmsServerV3MongooseCallback(mg_connection*, int, void*) at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/ovms_server_v3/src/ovms_server_v3.cpp:66 0x400f8306: parse_mqtt at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 (inlined by) mqtt_handler at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:10606 0x400f514d: mg_sock_addr_to_str at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400f69cb: mg_http_handler2 at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400f6d95: mg_mgr_handle_conn at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400f705f: mg_socket_if_poll at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400f3cba: mg_add_conn at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c:1701 0x400eafe6: OvmsNetManager::ListConnections(int, OvmsWriter*) at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/main/ovms_netmanager.cpp:685 0x400eb035: OvmsNetManager::CloseConnection(unsigned int) at /home/openvehicles/build/Open-Vehicle-Monitoring-System-3.1/vehicle/OVMS.V3/main/ovms_netmanager.cpp:702 Apart from the massive stack, it seems very strange that we would be calling OvmsNetManager::ListConnections() and CloseConnection(). I guess the stack is messed up, or this is some other remnant of a previous call? Any ideas? Mark