11-12-2025 11:22 AM
Hello,
I'm having an issue where ever few times I run a GNURadio Graph or C++ with UHD application, I randomly get various errors:
RuntimeError: RuntimeError: Unknown error during attempt to establish RPC connection at 192.168.110.2:49601
RuntimeError: RuntimeError: Failure to create rfnoc_graph.
thread_body_wrapper :error: ERROR thread[thread-per-block[3]: <block usrp_source(1)>]: EnvironmentError: IOError: Timed out getting recv buff for management transaction
malloc(): unaligned tcache chunk detected
Aborted (core dumped)
and sometimes it gets in a state where it reports many overflows and very little data is transferred over the 100GbE connection.
And sometimes it just runs normally.
I need this to be more reliable. I've gone through all the setup instructions and changed the system based on the Ettus and UHD documentation.
What would cause this and is there a way to fix it?
Here's information about my system:
Computer:
Ubuntu 25.04
Linux 6.17.1-061701-generic #202510060945 SMP PREEMPT_DYNAMIC Mon Oct 6 12:03:14 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Intel(R) Core(TM) i9-14900KF
Intel Corporation Ethernet Controller E810-C for QSFP
64GB RAM
Device:
X440 with CG_400 fpga image
Linux ni-x4xx-34BA576 5.10.37-x4xx #1 SMP Fri May 14 07:50:46 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux
LSB Version: n/a
Distributor ID: Alchemy
Description: Alchemy 2024.00
Release: 2024.00
Codename: Alchemy-Kirkstone
Thank you,
Micheal Shoemaker