Re: [Discuss-gnuradio] [USRP-users] AssertionError: udp_zero_copy

[Sam mite]

Hi Ben,

On Wed, Aug 21, 2013 at 5:37 AM, Ben Hilburn <address@hidden> wrote:

Sam -

Whoa. That is bizarre. And unprecedented.

1. Does this happen consistently?

No, it happened two times in months. But, I am concerned with this now.

1. What command are you running that generates this issue?

curr_time = uhd_usrp_sink_0.get_time_now(). Almost 5-10 times in one second. Just for your information, I have a GPSDO kit installed too.

 

1. Can you provide us with more information regarding your network controller?

 $ lspci | egrep -i --color 'network|ethernet'
00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 05)

1. How did you install UHD?

I installed gnuradio and UHD using the build script

wget http://www.sbrac.org/files/build-gnuradio && chmod a+x ./build-gnuradio && ./build-gnuradio

Cheers,

Ben

Please let me know if you require any further information to solve the issue.

Regards,

Sam

----------------------------

Ettus Research, LLC   |   USRP

On Mon, Aug 19, 2013 at 9:15 PM, Sam mite <address@hidden> wrote:

Hi list,

 I am using gnuradio 3.6.3rc0 and uhd UHD_003.005.000-26-gb65a3924. USRP is N210 with a GPSDO. GNU C++ version 4.6.3. Linux Ubuntu 12.04 LTS.  I am getting following error:

terminate called after throwing an instance of 'uhd::assertion_error'
  what():  AssertionError: ::send(_sock_fd, (const char *)_mem, size(), 0) == ssize_t(size())
  in virtual void udp_zero_copy_asio_msb::release()
  at /home/sam/uhd/host/lib/transport/udp_zero_copy.cpp:115

What does that mean? What is the fix?

--

Best Regards,

Sam

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