Re: [wakaama-dev] lwm2m client bootstrapping failure and segfaulting

["Navarro, David" <david.navarro@xxxxxxxxx>]

Hi,

By de fault the lwm2mclient tries to contact a server at localhost:5683. The "-b" option just tells him this server is a bootstrap server. But your bootstrap server starts on port 5685 by default. Here your client requests the bootstrap information from the LWM2M server which ignores the request. Hence the client exits.
The segfault is due to bad cleaning of the client's objects. Ugly but harmless as its is a test application issue.
 
Bootstrap server and lwm2mserver command lines are correct. For the lwm2mclient use the following:
~/wakaama-master/tests/client$ ./lwm2mclient -4 -b -p 5685

The "-p 5685" option tells the client that the default server is at localhost:5685.

Regards,
David Navarro

-----Original Message-----
From: wakaama-dev-bounces@xxxxxxxxxxx [mailto:wakaama-dev-bounces@xxxxxxxxxxx] On Behalf Of Bill Silverajan
Sent: Wednesday, 2 March, 2016 21:54
To: wakaama-dev@xxxxxxxxxxx
Subject: [wakaama-dev] lwm2m client bootstrapping failure and segfaulting


Hi,

I checked out the latest code from github today and compiled the bootstrap server, lwm2m server and lwm2m client for Ubuntu 15.04 desktop. Then I proceeded to simply launch all 3 in their own terminals, with default options, but with IPv4, in this sequence:

~/wakaama-master/tests/bootstrap_server$ ./bootstrap_server -4

~/wakaama-master/tests/server$ ./lwm2mserver -4

~/wakaama-master/tests/client$ ./lwm2mclient -4 -b


Using wireshark I noticed no CoAP traffic at all between the client and the bootstrap server, but after a short timeout, the client attempts to contact the lwm2m server directly (and registration fails).

After a short while, the lwm2m client segfaults like so:

lwm2m_step() failed: 0xA3
[BOOTSTRAP] restore security and server objects Segmentation fault (core dumped)


Is there something I needed to enable during compile- or run-time to get this simple set-up working? Without bootstrapping, the registration proceeds without problems.

Regards,
Bill
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