[Xenomai-help] [Fwd: Re: rtcan bufferoverflow but no evidence]

[Xenomai-help] [Fwd: Re: rtcan bufferoverflow but no evidence]

[Roland Tollenaar]

Sent the previous one off-list. Sorry.

-------- Original Message --------
Subject: Re: [Xenomai-help] rtcan bufferoverflow but no evidence
Date: Mon, 13 Aug 2007 17:49:07 +0200
From: Roland Tollenaar <rolandtollenaar@domain.hid>
Reply-To: rolandtollenaar@domain.hid
To: Wolfgang Grandegger <wg@domain.hid>
References: <46C0719B.1010102@domain.hid> <46C07AF2.60402@domain.hid>

Hi,

> When you have bound a RTCAN socket, it will receive messages and put 
> them into the RX socket queue. If no task reads them via recv* function 
This is the strange thing, I read them via rt_dev_recv. Sure as I am
here wrting this email every message gets read out. I send a sync, I get
a reply, the reply is read. I can see this very very clearly by
monitoring with rtcanrecv as well.

> calls, the buffer will overflow sooner than later. Do you use a bound 
> socket just for sending messages?
I send the sync, I recieve the position frame. Like clockwork. There
should be no overflow. I have checked all error masks, nothing.


> You can (or even should) suppress the overflow messages by disabling the 
> kernel option CONFIG_XENO_DRIVERS_CAN_DEBUG.
Well yes, but at the same time it would be interesting to know why the
buffer seems to be overflowing? I am very curious. :)

Thanks.

Regards,

Roland.





> 
> Wolfgang.
>