Random nanoBTS reboot

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Pierre Kim admin at manateeshome.com
Sun Jun 28 01:32:29 UTC 2015


Hello,

I've been experiencing this bug ever since I started experimenting with 
OpenBSC.
At first I thought it as a problem with unstable connection, but it 
continued to happen even after I connected to the nanoBTS directly 
through a switch.

I used Wireshark to track down the cause and discovered that OpenBSC was 
responding too late to PING message from the nanoBTS. I am attaching the 
pcap file of the moment.

This happens as soon as 1 hour from the first connection, sometimes it 
runs okay for 18 hours but I've never seen my nanoBTS running straight 
for more than 24hrs

Please take a look into the log. Any help will be greatly appreciated.
Tell me in case if you need more information

Regards,
Pierre

Following is the log from openbsc console.

Sat Jun 27 03:24:43 2015 <0004> bsc_init.c:286 bootstrapping RSL for 
BTS/TRX (0/0) on ARFCN 520 using MCC=450 MNC=9 LAC=1 CID=0 BSIC=63 TSC=7
Sat Jun 27 08:17:39 2015 <001a> ipa.c:246 Cannot send PING message. 
Reason: Broken pipe
Sat Jun 27 08:17:39 2015 <001a> input/ipaccess.c:110 Unexpected return 
from ipa_ccm_rcvmsg_base (ret=-32)
Sat Jun 27 08:17:39 2015 <001a> input/ipaccess.c:236 Sign link vanished, 
dead socket
Sat Jun 27 08:17:39 2015 <001a> input/ipaccess.c:69 Forcing socket 
shutdown with no signal link set
Sat Jun 27 08:20:51 2015 <001a> input/ipa.c:265 accept()ed new link from 
192.168.28.31 to port 3002
Sat Jun 27 08:21:08 2015 <001a> input/ipa.c:265 accept()ed new link from 
192.168.28.31 to port 3003
Sat Jun 27 08:21:11 2015 <0004> bsc_init.c:286 bootstrapping RSL for 
BTS/TRX (0/0) on ARFCN 520 using MCC=450 MNC=9 LAC=1 CID=0 BSIC=63 TSC=7

and sometimes without the error from ipa_ccm_rcvmsg_base

Sun Jun 28 09:17:40 2015 <001a> input/ipaccess.c:236 Sign link vanished, 
dead socket
Sun Jun 28 09:17:40 2015 <001a> input/ipaccess.c:69 Forcing socket 
shutdown with no signal link set
Sun Jun 28 09:20:39 2015 <001a> input/ipa.c:265 accept()ed new link from 
192.168.28.31 to port 3002
Sun Jun 28 09:20:56 2015 <001a> input/ipa.c:265 accept()ed new link from 
192.168.28.31 to port 3003
Sun Jun 28 09:20:59 2015 <0004> bsc_init.c:286 bootstrapping RSL for 
BTS/TRX (0/0) on ARFCN 520 using MCC=450 MNC=9 LAC=1 CID=0 BSIC=63 TSC=7
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