On 2021-10-25 10:34, Anabel Almodovar wrote:
Anabel:
Please continue to copy our correspondence to the usrp-users mailing
list. It makes it easier to track, and people other than me can often have
insights into problems as well.
What version of the FPGA image are you using? This is on an X310?
https://files.ettus.com/manual_archive/release_003_010_001_000/html/page_usrp_x3x0.html
What does 'ethtool' tell you about your ethernet interfaces--are they
indeed running at 10GiG?
Have you modified the interfaces to operate with an MTU of 9000?
Hello,
Because I am using a UBX I would like to use 200Msps, but I have
already got overflows with 25Msps.
Right now I am using one X310 with two UBX so I only use two RX
channels. And I use a double 10 GB Eth interface for the connection.
The information of my Ethernet connector is the follow:
imagen.png
The Ubuntu version is 20.04. After updating the system I used Ubuntu
16.04 LTS and the USRPs works correctly, so I don't really know what
is happening.
Thank you in advance for your help.
Regards,
Anabel
El mar, 19 oct 2021 a las 15:10, Marcus D. Leech
(<patchvonbr...@gmail.com>) escribió:
On 2021-10-19 3:22 a.m., Anabel Almodovar wrote:
>
>
> I also attach the gnuradio error, where I no longer get the
lo_loked
> error but I still have the same problem regarding overflows and
streamer.
>
> Generating: '/home/rack_2021/Escritorio/GNU_Radio_ok/uhd_fft.py'
>
> Executing: /usr/bin/python3 -u
> /home/rack_2021/Escritorio/GNU_Radio_ok/uhd_fft.py
>
> (python3:2681): Gtk-WARNING **: 12:02:08.964: GTK+ module
> /usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libgail.so cannot be
loaded.
> GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same
> process is not supported.
> Gtk-Message: 12:02:08.965: Not loading module "atk-bridge": The
> functionality is provided by GTK natively. Please try to not
load it.
>
> (python3:2681): Gtk-WARNING **: 12:02:09.043: GTK+ module
> /usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libcanberra-gtk-module.so
> cannot be loaded.
> GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same
> process is not supported.
> Gtk-Message: 12:02:09.043: Failed to load module
"canberra-gtk-module"
>
> (python3:2681): Gtk-WARNING **: 12:02:09.044: GTK+ module
> /usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libcanberra-gtk-module.so
> cannot be loaded.
> GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same
> process is not supported.
> Gtk-Message: 12:02:09.044: Failed to load module
"canberra-gtk-module"
> [INFO] [UHD] linux; GNU C++ version 9.3.0; Boost_107100;
> UHD_4.1.0.HEAD-0-gd21735d5
> [INFO] [X300] X300 initialization sequence...
> [INFO] [X300] Maximum frame size: 8000 bytes.
> [INFO] [X300] Maximum frame size: 8000 bytes.
> [INFO] [X300] Radio 1x clock: 200 MHz
> [WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
> [WARNING] [0/Radio#1] Attempting to set tick rate to 0. Skipping.
> Dgr::log :ERROR: usrp_source0 - In the last 2521 ms, 35974177
> overflows occurred.
> Dgr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> gr::log :WARN: usrp_source0 - USRP Source Block caught rx error:
> ERROR_CODE_ALIGNMENT (Multi-channel alignment failed)
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
> [ERROR] [STREAMER] The rx streamer failed to time-align packets.
>
> Thank you in advance.
> Anabel
>
The fact that you're getting so very many overruns mans that your
computer isn't able to keep up with the flow of samples from the
device.
What sample rate are you using? How many channels? Are you
using a
10GiGe interface? What type of 10GiGe interface?
Performance changes across OS versions can be dramatic and subtle to
debug. What version of Ubuntu are you now using?
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