[srslte-users] Attaching problem

[Ismael Gomez]

Can you run with log level info and filename=stdout please? This will fw
the log to stdout instead of a file so that we are able to see what
happened just before segfault. Also, can you run it with gdb and send us
the backtrace?

Thanks

El jue., 26 oct. 2017 17:27, Lanfranco Zanzi <lanfranco.zanzi at gmail.com>
escribió:

> Hi Andre,
>
> thank you for your reply.
> I saw what Ismael suggested, and i used it as starting point for my setup.
> The desktop PC should satisfy the requirements and 3 physical threads are
> already running. However, the setting "otw_format=sc12" leads in my case to
> core dumped failure:
>
> linux; GNU C++ version 5.3.1 20151219; Boost_105800; UHD_003.009.002-0-unknown
>
> Reading configuration file ue.conf.example...
> ---  Software Radio Systems LTE UE  ---
>
> Opening RF device with 2 RX antennas...
> Using Volk machine: avx2_64_mmx_orc
> Opening USRP with args: otw_format=sc12
> -- Detected Device: B210
> -- Operating over USB 3.
> -- Initialize CODEC control...
> -- Initialize Radio control...
> -- Performing register loopback test... pass
> -- Performing register loopback test... pass
> -- Performing CODEC loopback test... pass
> -- Performing CODEC loopback test... pass
> -- Asking for clock rate 16.000000 MHz...
> -- Actually got clock rate 16.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> -- Setting master clock rate selection to 'automatic'.
> -- Asking for clock rate 48.000000 MHz...
> -- Actually got clock rate 48.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> -- Asking for clock rate 61.440000 MHz...
> -- Actually got clock rate 61.440000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> -- Asking for clock rate 30.720000 MHz...
> -- Actually got clock rate 30.720000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> Waiting PHY to initialize...
> ...
> Searching cell in DL EARFCN=1700, f_dl=1855.0 MHz, f_ul=1760.0 MHz
> .
> Found Cell:  PCI=80, PRB=100, Ports=2, CFO=3.3 KHz
> Found PLMN:  Id=00101, TAC=1
> Select cell: PCI=80, EARFCN=1700, Cell ID=0x6601
> Random Access Transmission: seq=1, ra-rnti=0x2
> srsue: /usr/include/boost/smart_ptr/intrusive_ptr.hpp:174: T* boost::intrusive_ptr<T>::operator->() const [with T = uhd::transport::managed_send_buffer]: Assertion `px != 0' failed.
> srsue: /usr/include/boost/smart_ptr/intrusive_ptr.hpp:174: T* boost::intrusive_ptr<T>::operator->() const [with T = uhd::transport::managed_send_buffer]: Assertion `px != 0' failed.
> Aborted (core dumped)
>
>
>
> Am i missing something?
>
> Thank you again
>
>
>
>
>
> 2017-10-25 14:40 GMT+02:00 Andre Puschmann <
> andre.puschmann at softwareradiosystems.com>:
>
>> Hi,
>>
>> there seems to be an issue with receiving from the USRP as well, see
>> logs for overflow warning.
>>
>> Have you tried what Ismael suggested a few days ago to Andres? Also, if
>> you have the possibility, you could try to reduce the bandwidth of the
>> cell to 15 or 10 MHz to lower the processing load for the UE.
>>
>> Cheers
>> Andre
>>
>>
>> On 23/10/17 17:20, Lanfranco Zanzi wrote:
>> > Hi all,
>> >
>> > we are facing some problem during the attach procedure of our USRP b210
>> > with a commercial LTE base station. We want to try the new srsLTE
>> > release and test it over a 2x2 MIMO setup.
>> >
>> > As you can see from the logs attached, the procedure starts correctly,
>> > but it does not complete due to "Timer T310 expired: Radio Link
>> Failure".
>> > I'm not an expert  user of srsLTE, but i do not see any issue from the
>> > logs, except for some " Sync error. Sending out-of-sync to RRC".
>> > The software is running on a powerful desktop PC (quad core i7 4.4Ghz),
>> > and the basic ue.conf file has been modified only for 2 receiving
>> > antennas and 3 physical threads.
>> >
>> > Could the out-of-sync issue be the main problem, and how can i try to
>> > fix it?
>> > Other devices such as mobile phone or USB dongles perfectly attach, so i
>> > would exclude incorrect configuration in the base station.
>> >
>> > Thank you in advance.
>> >
>> >
>> > _______________________________________________
>> > srslte-users mailing list
>> > srslte-users at lists.softwareradiosystems.com
>> > http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>> >
>>
>>
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