[ECOS] problem with TCP/IP stack

Gary Thomas gthomas@cambridge.redhat.com
Fri Jan 26 13:46:00 GMT 2001


Are you trying to run one of our test/demo programs?  If not, I'm not
sure I understand your "UDP server" terminology.

On 26-Jan-2001 Gary Guangyu Pei wrote:
> Hi,
> I encountered the following problem with TCP/IP stack:
> It cannot run both UDP server and client together. If I run server only,
> it can receive UDP packets from the other nodes. However, if I run both
> client and server, the client can keep on sending out packets, the server
> will stop receiving packets after it receives the first packet (or
> sometime the first 2 packets) from a client. I use the gdb to trace the
> program. I find the received packages travelling along the protocol stack
> all way up to udp_usrreq.c. After calling the sorwakeup() at line 565, the
> server thread never gets to run.
> 
> Does anyone know what might go wrong? Do you have similar experience?
> 
> The network priority is 7. I tried both 6,7,8 priority for the udp server.
> 
> Thank you very much, any suggestion is highly appreciated.
> 
> Gary
> 


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