netdev - Re: [PATCH] selftests/net: give more time to udpgro bg processes to complete startup

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Message-ID: <20221104104740.3191c652@kernel.org>
Date:   Fri, 4 Nov 2022 10:47:40 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Paolo Abeni <pabeni@...hat.com>
Cc:     Adrien Thierry <athierry@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Shuah Khan <shuah@...nel.org>, netdev@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH] selftests/net: give more time to udpgro bg processes to
 complete startup

On Fri, 04 Nov 2022 09:54:10 +0100 Paolo Abeni wrote:
> Then it will be less straigh-forward for the running shell waiting for
> all the running processes. 

The usual solution for that is to write the pid of the daemonized
process to a file, no?

> Another option would be replacing the sleep with a loop waiting for 
> the rx UDP socket to appear in the procfs or diag interface, alike what
> mptcp self-tests (random example;) are doing: