[PATCH] child process synchronization NIC startup parameters

[Stephen Hemminger]

On Wed,  5 Jul 2023 17:35:14 +0800
Kaisen You <kaisenx.you at intel.com> wrote:

> In meson_test, because the child process does not synchronize
> the NIC startup parameters of the parent process at startup,
> it uses all NICs bound by vfio as startup parameters by default,
> and an exception occurs in the subsequent hugefile check,
> causing the test to fail. Synchronize the NIC startup parameters
> of the parent process to the child process to solve this problem.
> 
> Fixes: 786b29255c49 ("test: fix file prefix discovery")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Kaisen You <kaisenx.you at intel.com>

Not portable outside of Linux.
Seems really bug prone to have test diving into /proc to find
command line of parent. Couldn't this be passed one of many other
ways into child?