TCP/IP problems

Chris Johns chrisj at
Thu Jul 22 00:39:10 UTC 2004

Stan wrote:
> Why the write function never returns an error ?
> For example, I modify the program loopback for making
> many writes without read : at some point, all mbufs are used.
> But no error from write function ?

I would expect write to block. I am not sure why you are not seeing 
this. Can you step into the write with a debugger to find out ?

Do you have a test program I could try ?

There are functions and commands in the RTEMS monitor which can show the 
mbuf usage and the packets in the queue. Maybe this can help show what 
is happening.

  Chris Johns

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