netdev - Re: [PATCH net-next] selftests: net: prevent Python from buffering the output

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Message-ID: <87v7nrcco6.fsf@nvidia.com>
Date: Thu, 17 Jul 2025 12:51:07 +0200
From: Petr Machata <petrm@...dia.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: <davem@...emloft.net>, <netdev@...r.kernel.org>, <edumazet@...gle.com>,
	<pabeni@...hat.com>, <andrew+netdev@...n.ch>, <horms@...nel.org>,
	<shuah@...nel.org>, <petrm@...dia.com>, <sdf@...ichev.me>
Subject: Re: [PATCH net-next] selftests: net: prevent Python from buffering
 the output


Jakub Kicinski <kuba@...nel.org> writes:

> Make sure Python doesn't buffer the output, otherwise for some
> tests we may see false positive timeouts in NIPA. NIPA thinks that
> a machine has hung if the test doesn't print anything for 3min.
> This is also nice to heave for running the tests manually,
> especially in vng.
>
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>

The flush keyword was introduced in 3.3, now out of support, so this
should be safe.

Reviewed-by: Petr Machata <petrm@...dia.com>