netdev - Re: [PATCH net-next 4/5] selftests: net: terminate bkg() commands on exception

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Message-ID: <aJqGEvtKkIq9G2J4@MacBook-Air.local>
Date: Mon, 11 Aug 2025 17:08:50 -0700
From: Joe Damato <joe@...a.to>
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, sdf@...ichev.me, almasrymina@...gle.com,
	noren@...dia.com, linux-kselftest@...r.kernel.org,
	ap420073@...il.com
Subject: Re: [PATCH net-next 4/5] selftests: net: terminate bkg() commands on
 exception

On Mon, Aug 11, 2025 at 04:13:33PM -0700, Jakub Kicinski wrote:
> There is a number of:
> 
>   with bkg("socat ..LISTEN..", exit_wait=True)
> 
> uses in the tests. If whatever is supposed to send the traffic
> fails we will get stuck in the bkg(). Try to kill the process
> in case of exception, to avoid the long wait.
> 
> A specific example where this happens is the devmem Tx tests.
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
> ---
>  tools/testing/selftests/net/lib/py/utils.py | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 

Reviewed-by: Joe Damato <joe@...a.to>