[RFC] test/eal_flags: suppress vdev_netvsc auto-probe

[Stephen Hemminger]

On Sun, 22 Feb 2026 14:15:42 -0800
Stephen Hemminger <stephen at networkplumber.org> wrote:

> On Hyper-V systems (including Azure-hosted CI), the vdev_netvsc
> driver auto-injects itself during vdev bus scan. This interferes
> with the vdev flag test causing the nodeaction subprocess to fail.
> 
> Suppress by passing net_vdev_netvsc,ignore=1 in the valid vdev
> test cases. The scan callback sees it already in devargs and
> skips injection; the probe honours ignore and does nothing.
> 
> Fixes: 0d684a783088 ("app/test: fix and separate --vdev unit test")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>

Self NAK

This is not the underlying cause of the test failures.
The issue is likely parallel test invocation overlapping on the file prefix
which is already addressed by another pending patch series.

That said, something should be done about vdev_netvsc driver and github
interactions.