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

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Hi Jakub,

On 01/03/2024 15:37, Jakub Kicinski wrote:
> On Fri, 23 Feb 2024 17:14:20 +0100 Matthieu Baerts (NGI0) wrote:
>> From: Paolo Abeni <pabeni@xxxxxxxxxx>
>>
>> The mptcp diag interface already experienced a few locking bugs
>> that lockdep and appropriate coverage have detected in advance.
>>
>> Let's add a test-case triggering the relevant code path, to prevent
>> similar issues in the future.
>>
>> Be careful to cope with very slow environments.
>>
>> Note that we don't need an explicit timeout on the mptcp_connect
>> subprocess to cope with eventual bug/hang-up as the final cleanup
>> terminating the child processes will take care of that.
> 
> Hi!
> 
> There's a failure in CI under debug after merging net and net-next 
> in diag.sh. Maybe because of the patch which lowered timeout?
> https://lore.kernel.org/all/20240223-upstream-net-next-20240223-misc-improvements-v1-8-b6c8a10396bd@xxxxxxxxxx/

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!

Cheers,
Matt
-- 
Sponsored by the NGI0 Core fund.




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