Hello, there
We are using a custom board to upload data via udp connection. The send() call not return sometime, and the main thread is blocked as a result
Modem firmware version: mfw_nrf9160_1.2.3
modem log link: modem log
this is how create the udp link
static int udp_server_connect(void)
{
int err = 0;
udp_client_fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (udp_client_fd < 0) {
LOG_ERR("Failed to create UDP socket: %d\n", errno);
goto error;
}
err = connect(udp_client_fd, (struct sockaddr *)&host_addr, sizeof(struct sockaddr_in));
LOG_INF("connect ret %d, udp_client_fd %d", err, udp_client_fd);
if (err < 0) {
LOG_ERR("Connect failed: %d\n", errno);
goto error;
}
return err;
error:
udp_server_disconnect();
return err;
}
and the data send part. data is sent every 3 minutes
if (udp_trigger_state.period_pos_req) {
uint32_t len;
int err;
LOG_INF("period_pos_send_work_fn");
len = udp_pos_data_get(UPLOAD_EVENT_POS_PERIOD, pos_data_buffer);
LOG_INF("len %d, strlen %d", len, strlen(pos_data_buffer));
err = send(udp_client_fd, pos_data_buffer, strlen(pos_data_buffer), 0);
LOG_INF("send err %d", err);
memset(pos_data_buffer, 0, sizeof(pos_data_buffer));
udp_trigger_state.period_pos_req = 0;
}
the send result log didn't output when the error happened. my gnss parser work didn't run since then, so I'm dropping the nmea data in uart-irq. threaded adc sampling start by timer is still working.
00> [01:27:00.207,977] <inf> battery_adc: pool 3806 3806 3806 3804 3810 00> [01:27:00.207,977] <inf> battery_adc: battery_state.battery_percentage 66, cal_per 66 00> [01:27:00.208,007] <inf> battery_adc: battery_sample_finish_work_fn 00> [01:27:00.208,007] <inf> battery_adc: CHR_STANDALONE 00> [01:27:00.208,007] <inf> battery_adc: old 0, new 0 00> [01:27:16.207,214] <inf> main: time 121-2-5 16:56:0 00> [01:27:24.016,448] <inf> cloud: rsrp_value 50, rsrp -91 00> [01:27:26.589,538] <inf> cloud: rsrp_value 48, rsrp -93 00> [01:27:29.136,596] <inf> cloud: rsrp_value 55, rsrp -86 00> [01:27:31.709,686] <inf> cloud: rsrp_value 42, rsrp -99 00> [01:27:34.256,744] <inf> cloud: rsrp_value 36, rsrp -105 00> [01:27:36.829,803] <inf> cloud: rsrp_value 35, rsrp -106 00> [01:27:39.376,861] <inf> cloud: rsrp_value 37, rsrp -104 00> [01:27:41.949,951] <inf> cloud: rsrp_value 33, rsrp -108 00> [01:27:44.497,039] <inf> cloud: rsrp_value 35, rsrp -106 00> [01:27:47.070,159] <inf> cloud: rsrp_value 31, rsrp -110 00> [01:27:47.480,041] <inf> cloud: rsrp_value 42, rsrp -99 00> [01:27:47.496,520] <inf> cloud: LTE cell changed: Cell ID: 264888962, Tracking area: 2247 00> 00> [01:27:49.619,171] <inf> cloud: rsrp_value 34, rsrp -107 00> [01:28:00.107,238] <inf> cloud_udp: period_pos_req_work_fn, 3 minutes 00> [01:28:00.107,238] <inf> cloud_udp: pos_req_rsp 0, 1 00> [01:28:00.157,348] <inf> cloud_udp: period_pos_send_work_fn 00> [01:28:00.157,958] <inf> cloud_udp: len 174, strlen 174 00> [01:28:00.207,946] <inf> battery_adc: raw 8639 ~ 1898 mV => 3796 m 00> 00> [01:28:00.207,946] <inf> battery_adc: pool 3806 3806 3796 3804 3810 00> [01:28:00.207,977] <inf> battery_adc: battery_state.battery_percentage 66, cal_per 66 00> [01:28:12.579,956] <err> ublox_gnss: Drop 1 bytes 00> [01:28:16.207,244] <inf> main: time 121-2-5 16:57:0 00> [01:28:25.519,775] <err> ublox_gnss: Drop 1 bytes 00> [01:28:37.628,631] <err> ublox_gnss: Drop 1 bytes 00> [01:28:50.568,420] <err> ublox_gnss: Drop 1 bytes 00> [01:29:00.207,946] <inf> battery_adc: raw 8659 ~ 1902 mV => 3804 m 00> 00> [01:29:00.207,977] <inf> battery_adc: pool 3806 3806 3796 3804 3810 00> [01:29:00.207,977] <inf> battery_adc: battery_state.battery_percentage 66, cal_per 66 00> [01:29:03.508,270] <err> ublox_gnss: Drop 1 bytes 00> [01:29:15.617,095] <err> ublox_gnss: Drop 1 bytes 00> [01:29:16.207,214] <inf> main: time 121-2-5 16:58:0 00> [01:29:28.557,861] <err> ublox_gnss: Drop 1 bytes 00> [01:29:41.498,413] <err> ublox_gnss: Drop 1 bytes
