Re: [PATCH net 10/10] selftests: mptcp: explicitly trigger the listener diag code-path

From: Jakub Kicinski
Date: Fri Mar 01 2024 - 14:04:41 EST


On Fri, 1 Mar 2024 19:24:53 +0100 Matthieu Baerts wrote:
> > Thank you for this message!
> >
> > I didn't have this error on my side, even without '-d SLUB_DEBUG_ON' we
> > do on top of the debug kconfig, but I see I can reproduce it on slower
> > environments. Indeed, it looks like it can be caused by that
> > modification. I will send a fix ASAP!
>
> The following patch fixes the issue on my side (when using 'renice 20'
> and stress-ng in parallel :) ):
>
> https://lore.kernel.org/netdev/20240301-upstream-net-20240301-selftests-mptcp-diag-exit-timeout-v1-2-07cb2fa15c06@xxxxxxxxxx/T/

Nice! Note only a fix but also lowers runtime, if I'm reading right!

> I queued it for -net, but the issue should only be visible in net-next
> due to the reduction of the timeout, as you suggested. This patch can
> also be applied in net-next if preferred, it will not cause any
> conflicts between net and net-next.

No strong preference, net sounds good.

Thanks for a quick turnaround!