Hi Purva Joshi,
let's pick this apart:
On 18.12.23 12:41, [email protected] wrote:
Dear Users,
I am using USRP N310, with UHD 4.0 version in Ubuntu 20.04. When I want to test
my uplink sniffing using N310, it gives me following errors:
1) \[WARNING\] \[MPM.RPCServer\] A timeout event occured!
not an error, just a warning. This might be benign, but probably is symptomatic of
something else.
2) \[WARNING\] \[0/Radio#0\] Attempting to set tick rate to 0. Skipping.
Another warning, not an error. This is something that happens when you don't initialize
with an MCR, so probably benign.
3) \[ERROR\] \[UHD RF\] std::bad_alloc
This! Is the actually point where a problem leads to an error. However, that logging
format looks like srsRAN, not UHD to me. So probably, what happened is that the USRP was
not correctly initialized by srsRAN, then srsRAN asks UHD for something and bases a buffer
allocation on that, which then goes wrong. (this is but a guess).
Could you do two things, please?
1.) Make sure `uhd_usrp_probe --args 'arguments as specified in srsRAN'` works (please
redirect the output into a file and attach that!). The arguments, if any, are specified in
your srsran config under `ru_sdr:`, `device_args`. Generally, please also attach your
srsRAN config .yml file
2.) Try to run this on a more modern UHD. IIRC, you can install srsRAN quite
straightforwardly on Ubuntu 22.04; using `podman`, you can try doing that in a container
without touching your main operating system at all (`sudo podman run -it -v $(pwd):/data:Z
--network=host ubuntu:23.10`, then `apt update; apt install software-properties-common;
add-apt-repository ppa:softwareradiosystems/srsran-project; apt update; apt install
srsran-project`).
Best regards,
Marcus
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