Subject: Re: [PATCH v1] selftests: openvswitch: retry instead of sleep

From: Aaron Conole <[email-masked]>
Date: Mon, 08 Jul 2024 14:27:45 -0400

Adrian Moreno <[email-masked]> writes:

> There are a couple of places where the test script "sleep"s to wait for
> some external condition to be met.
>
> This is error prone, specially in slow systems (identified in CI by
> "KSFT_MACHINE_SLOW=yes").
>
> To fix this, add a "ovs_wait" function that tries to execute a command
> a few times until it succeeds. The timeout used is set to 5s for
> "normal" systems and doubled if a slow CI machine is detected.
>
> This should make the following work:
>
> $ vng --build  \
>     --config tools/testing/selftests/net/config \
>     --config kernel/configs/debug.config
>
> $ vng --run . --user root -- "make -C tools/testing/selftests/ \
>     KSFT_MACHINE_SLOW=yes TARGETS=net/openvswitch run_tests"
>
> Signed-off-by: Adrian Moreno <[email-masked]>
> ---

Looks like this does resolve the issue in question on the -dbg
environment:

https://netdev.bots.linux.dev/contest.html?executor=vmksft-net-dbg&test=openvswitch-sh

Thanks Adrian!  Also, thanks for including the fractional sleep.

Reviewed-by: Aaron Conole <[email-masked]>