I've had problems like that when the task queue overflows. The default
size is 8, you might want to increase it to 32 or so.
Aaron
On Mon, 2006-07-31 at 13:38 -0400, [EMAIL PROTECTED] wrote:
>
> Hello,
>
> I have a question regarding a message transmission problem that I encounter. I
> run a TinyOS application with 200 nodes, with the following configuration
> file:
>
> configuration test_filter {
> }
> implementation {
> components Main, test_filterM, SingleTimer, LedsC, PotC, GenericComm as
> Comm,
> RandomLFSR;
>
> Main.StdControl -> SingleTimer.StdControl;
> Main.StdControl -> test_filterM.StdControl;
>
> test_filterM.Timer -> SingleTimer.Timer;
> test_filterM.Leds -> LedsC;
> test_filterM.CommControl -> Comm;
> test_filterM.SendMsg -> Comm.SendMsg[1];
> test_filterM.ReceiveMsg -> Comm.ReceiveMsg[1];
> test_filterM.Random -> RandomLFSR;
> }
>
> A am building a routing tree over those nodes, using a sparse bit error graph
> (about 10 neighbors have 0 bit-errors, and the rest have 0.5) and the problem
> is
> that after multiple message broadcasts, well into the process, I encounter a
> case where a node repeatedly transmits a message (using call SendMsg.send) and
> its intended recipient does not register it (using event ReceiveMsg.receive).
> There are no other nodes that transmit at this time, just node A which tries
> to
> send a message to node B, which is targeted specifically to B (not a
> broadcast).
> The bit error between them is 0, and yet node B does not register the
> message. B
> has previously received messages from A before the current attempt on A's
> behalf. Source code and status logs can be provided on request.
>
> Why does this situation arise? Is it possible that there is some kind of
> overflow of internal message queues? Is it because of the methods use to send
> and receive? Can you suggest an alternative?
>
> Svilen Mihaylov
>
>
>
> ----- End forwarded message -----
>
>
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