Osmo-nitb v_0.13.0.48-9e22 broke compatibility with Nokia InSite

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Sipos Csaba dchardware at gmail.com
Fri Jun 28 12:09:05 UTC 2013


Dear members,

It seems that the latest Osmo-nitb (0.13.0.48-9e22) broke
compatibility with Nokia InSite.

I am using a GSM1800 unit with an E1
dahdi card, and with the following config it was working fine with a
previous version (osmo-nitb v.0.13.0.33-e152a4):

openbsc.cfg:

! OpenBSC configuration saved from vty
!   !
password foo
!
line vty
 no login
!
e1_input
 e1_line 0 driver dahdi
network
 network country code 1
 mobile network code 1
 short name OpenBSC
 long name OpenBSC 
 mm info 1
 timer t3101 10
 timer t3113 60
 bts 0
  type nokia_site
  band GSM1800
  cell_identity 1
  location_area_code 1
  base_station_id_code 63
  training_sequence_code 7
  ms max power 40
  periodic location update 10
  
  oml e1 line 0 timeslot 5 sub-slot full
  oml e1 tei 1
  
  trx 0
   arfcn 885
   nominal power 22
   max_power_red 0
   rsl e1 line 0 timeslot 4 sub-slot full
   rsl e1 tei 1


    timeslot 0
     phys_chan_config CCCH+SDCCH4
     e1 line 0 timeslot 2 sub-slot 0

    timeslot 1
     phys_chan_config TCH/F
     e1 line 0 timeslot 2 sub-slot 1

    timeslot 2
     phys_chan_config TCH/F
     e1 line 0 timeslot 2 sub-slot 2

    timeslot 3
     phys_chan_config TCH/F
     e1 line 0 timeslot 2 sub-slot 3

    timeslot 4
     phys_chan_config TCH/F
     e1 line 0 timeslot 3 sub-slot 0

    timeslot 5
     phys_chan_config TCH/F
     e1 line 0 timeslot 3 sub-slot 1

    timeslot 6
     phys_chan_config TCH/F
     e1 line 0 timeslot 3 sub-slot 2

    timeslot 7
     phys_chan_config TCH/F
     e1 line 0 timeslot 3 sub-slot 3

/etc/dahdi/system.conf

span=1,0,0,ccs,hdb3,crc4
bchan=2-31
dchan=1

Error message with the most recent verion:

root at openbsc:~# osmo-nitb -c /root/1800_nokia.cfg
<0018> input/lapd.c:212 LAPD Allocating SAP for SAPI=62 / TEI=1
<0018> input/lapd.c:223 k=1 N200=3 N201=260 T200=1.0 T203=10.0
<0018> input/lapd.c:485 LAPD DL-ESTABLISH request TEI=1 SAPI=62
<0018> input/lapd.c:212 LAPD Allocating SAP for SAPI=62 / TEI=1
<0018> input/lapd.c:223 k=1 N200=3 N201=260 T200=1.0 T203=10.0
<0018> input/lapd.c:485 LAPD DL-ESTABLISH request TEI=1 SAPI=62
DB: Database initialized.
DB: Database prepared.
<001d> sms_queue.c:220 Attempting to send 20 SMS
<0018> input/lapd.c:624 LAPD DL-ESTABLISH confirm TEI=1 SAPI=62
<0005> bts_nokia_site.c:58 bootstrapping OML for BTS 0
<0005> bts_nokia_site.c:1679 ABIS_OM_MDISC_FOM
<0005> bts_nokia_site.c:1507 (0x81) NOKIA_BTS_ACK
<0005> bts_nokia_site.c:1539 ACK = 1
<0018> input/lapd.c:513 LAPD DL-RELEASE request TEI=1 SAPI=62
<0018> input/lapd.c:628 LAPD DL-RELEASE confirm TEI=1 SAPI=62
<0018> input/lapd.c:513 LAPD DL-RELEASE request TEI=1 SAPI=62
<0018> input/lapd.c:628 LAPD DL-RELEASE confirm TEI=1 SAPI=62
Segmentation fault (core dumped)

root at openbsc:~#

I have to admit that even with the previous versions I had issues,
like a lot of radio link failures, unstable voice calls (lasting only
1-2 minutes), but now it wont start at all.

Thanks in advance!

Csaba





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