* DPDK 21.11: __hn_nvs_execute() error on Hyper-V
@ 2025-10-07 1:52 Kishan Simha (ksimha)
0 siblings, 0 replies; only message in thread
From: Kishan Simha (ksimha) @ 2025-10-07 1:52 UTC (permalink / raw)
To: users
[-- Attachment #1: Type: text/plain, Size: 987 bytes --]
Hello DPDK community,
I am encountering an issue with the Hyper-V network driver (net_netvsc) when running a DPDK application in a virtual machine environment.
I consistently see the following error logged:
__hn_nvs_execute(): invalid NVS resp len 32 (expect 40)
hn_dev_configure(): subchannel configuration failed
The issue was not present when using DPDK version 19.11.3 on the same VM and Hyper-V setup.
The issue began after migrating to DPDK version 21.11.0. The application fails to initialize the network ports with this error.
Hyper-V Host OS : Window Server 2019
Guest OS : Linux version 5.10
Based on the version information, it appears a change between DPDK 19 and 21.11 is causing a communication incompatibility with my Hyper-V environment. Is this a known regression, and are there any recommended workarounds or patches available? Has anyone else observed this behavior?
Any insight or direction would be greatly appreciated.
Regards,
Kishan
[-- Attachment #2: Type: text/html, Size: 5553 bytes --]
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2025-10-08 6:22 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2025-10-07 1:52 DPDK 21.11: __hn_nvs_execute() error on Hyper-V Kishan Simha (ksimha)
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).