[Unstrung-hackers] Problem running sunshine on RPI2

Michael Richardson mcr at sandelman.ca
Thu May 11 12:01:39 EDT 2017


Marcin Aronowski <marcin.aronowski at gmail.com> wrote:
    > 6Lowpan is working, I can communicate with the node. What I can't get
    > working is RPL. I compiled sunshine and the rest of the package and
    > I'm able to run it. Here's the log of my sunshine:

In my recent testing on RPI, I have found the following problems:

1) some strange core dumps with debugging unless I set -O0.
2) DIS messages, and perhaps all unicast messages, are not being sent.

I have code not yet pushed up yet.
I have neither confirmed nor denied that this occurs with VMs.

    > default via 2001:470:614a:500::1 dev eth0 metric 1024
    > Scheduling dio in 5001 ms
    > inserting event #1 at 1494509198/866528 0
    > ip found[1]: lo scope=0 address=2001:470:614a:dead:1ac0:ffee:1ac0:ffee

    > The problem is that I don't see any packets being sent by RPI. Even
    > though you can see sending DIO is scheduled it's not happening.

Agreed.

    > \1\4p"..., 8192}], msg_controllen=0, msg_flags=0}, 0) = 72
    > write(2, "ip found[1]: lo scope=0 address="..., 71ip found[1]: lo
    > scope=0 address=2001:470:614a:dead:1ac0:ffee:1ac0:ffee
    > ) = 71
    > recvmsg(3, 0x7ee73334, 0) = -1 EAGAIN (Resource temporarily
    > unavailable)



    > What's ineterseting, when I try to debug sunshine with gdb I can see
    > DIO being sent ;)

    > Other problem is that sunshine is not getting any packets from 6lowpan
    > nodes. I can DIO/DIS packet in the tcpdump but there's anything in
    > sunshine log.

    > Any idea what can be the case here? What more info can I provide?

You saw unicase DIS messages going out? I did not.
I am hoping to be able to spend more time on this starting Sunday.

--
]               Never tell me the odds!                 | ipv6 mesh networks [
]   Michael Richardson, Sandelman Software Works        | network architect  [
]     mcr at sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [

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