Network error

Joel Sherrill <joel@OARcorp.com> joel.sherrill at OARcorp.com
Tue Dec 7 20:48:02 UTC 2004


Steve Holle wrote:
> I'm trying to stream 16-bit audio samples at 8ksps over the network 
> using datagram packets.  After running for a cople of minutes RTEMS 
> halts with "RETMS: Can't obtain network semaphore."  These samples are 
> sent in packets of  128 16-bit words ( 256 8-bit bytes ) every 16mS.
> 
> All that's in the DDD backtrace after the crash is :
> ZEROLOOPTEST();
> boot_card() at bootcard.c:133
> sp_cleanup() at bspclean.c:34
> 
> Any idea what could be causing this?

Are you trying to access the network stack from an ISR by any chance?

> Steve Holle
> Link Communications, Inc.
> 1035 Cerise Rd.
> Billings, MT  59101
> sholle at link-comm.com 


-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel at OARcorp.com                 On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
    Support Available             (256) 722-9985




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