[Openlte-discuss] OpenLTE exits after start

[billy.peter <bil...@pr...>]

Hello

I am trying to setup OpenLTE. My system specs are Core I-7 with Ubuntu 16.04 and USRP B205mini but I have USB 2.0 connectivity supported in my CPU.

When I start openlte i see following debug logs and application exits.
Logs are attached in file
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
02/20/2019 12:08:10.873624 info iface LTE_fdd_enb_interface.cc 779 *** LTE FDD ENB DEBUG INTERFACE ***
02/20/2019 12:08:15.465008 warning msgq LTE_fdd_enb_msgq.cc 234 pdcp_to_gw circular buffer empty on receive
02/20/2019 12:08:19.230328 warning msgq LTE_fdd_enb_msgq.cc 234 mac_to_phy circular buffer empty on receive
02/20/2019 12:08:19.230382 warning msgq LTE_fdd_enb_msgq.cc 234 phy_to_mac circular buffer empty on receive
02/20/2019 12:08:19.230437 warning msgq LTE_fdd_enb_msgq.cc 234 rlc_to_mac circular buffer empty on receive
02/20/2019 12:08:19.230479 warning msgq LTE_fdd_enb_msgq.cc 234 mac_to_timer circular buffer empty on receive
02/20/2019 12:08:19.230538 warning msgq LTE_fdd_enb_msgq.cc 234 rrc_to_pdcp circular buffer empty on receive
02/20/2019 12:08:19.230593 warning msgq LTE_fdd_enb_msgq.cc 234 pdcp_to_rlc circular buffer empty on receive
02/20/2019 12:08:19.230622 warning msgq LTE_fdd_enb_msgq.cc 234 rlc_to_pdcp circular buffer empty on receive
02/20/2019 12:08:19.230675 warning msgq LTE_fdd_enb_msgq.cc 234 mac_to_rlc circular buffer empty on receive
02/20/2019 12:08:19.230704 warning msgq LTE_fdd_enb_msgq.cc 234 gw_to_pdcp circular buffer empty on receive
02/20/2019 12:08:19.230733 warning msgq LTE_fdd_enb_msgq.cc 234 pdcp_to_rrc circular buffer empty on receive
02/20/2019 12:08:19.230753 warning msgq LTE_fdd_enb_msgq.cc 234 mme_to_rrc circular buffer empty on receive
02/20/2019 12:08:19.230785 warning msgq LTE_fdd_enb_msgq.cc 234 rrc_to_mme circular buffer empty on receive
02/20/2019 12:08:33.115278 info radio LTE_fdd_enb_radio.cc 424 RX modifying recv_size to sync 15329877 15329280
02/20/2019 12:08:33.115324 info radio LTE_fdd_enb_radio.cc 410 RX synced 15329280 15329280
02/20/2019 12:08:33.122800 error radio LTE_fdd_enb_radio.cc 443 RX packet size issue 1690 1920 15377280 15377280
02/20/2019 12:08:33.122846 error radio LTE_fdd_enb_radio.cc 560 RX error 8
02/20/2019 12:08:33.123712 error radio LTE_fdd_enb_radio.cc 464 RX overrun 15466351 15382810
02/20/2019 12:08:33.126132 info radio LTE_fdd_enb_radio.cc 424 RX modifying recv_size to sync 15483631 15482880
02/20/2019 12:08:33.126150 info radio LTE_fdd_enb_radio.cc 410 RX synced 15482880 15482880
02/20/2019 12:08:33.128941 error phy LTE_fdd_enb_phy.cc 709 PDSCH current_tti from MAC (1) does not match PHY (11)
02/20/2019 12:08:33.129194 info mac LTE_fdd_enb_mac.cc 409 MAC_dl_tti - PHY_dl_tti != 2 (-5), skipping 8 subframes
02/20/2019 12:08:33.130822 error radio LTE_fdd_enb_radio.cc 443 RX packet size issue 1780 1920 15507840 15507840
02/20/2019 12:08:33.130843 error radio LTE_fdd_enb_radio.cc 560 RX error 8......

Why is it so? Is it due to lack of USB 3.0connectivity?

but
in next logs, I can see that its actually getting the required clock rate. Then what could be the reason for failure in stable start?

$ sudo LTE_fdd_enodeb
[INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800; UHD_3.11.0.1-16-g34fc6362
*** LTE FDD ENB ***
Please connect to control port 30000
[INFO] [B200] Detected Device: B205mini
[INFO] [B200] Operating over USB 2.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'.
[INFO] [B200] Asking for clock rate 16.000000 MHz...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
[INFO] [MULTI_USRP] Setting master clock rate selection to 'manual'.
[INFO] [B200] Asking for clock rate 30.720000 MHz...
[INFO] [B200] Actually got clock rate 30.720000 MHz.
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOULLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLLLLLOLLLLLLLLLLLLLLLOLLLLLLLLLLLLLLLLOLLLLLLLLLLLLLLOLLLLLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLLLLLOLLLLLLLLLLLOLLLLLLLLLLLOLLLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLLLOLLLLLLLLLLLLOLLLLLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLLLLLOLLLLLLLLLLLOLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLOLLLLLLLLOLLLLLLLLLLLLOLLLLLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLOLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLOLLLLLLLLLLLOLLLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLLLOLLLLLLLLLLLLLOLLLLLLLLLLLOSegmentation fault (core dumped)
terminal@terminal-All-Series:~$ sudo LTE_fdd_enodeb
Thanks

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