netdev - Re: [TEST] kunit/cfg80211-ie-generation flaking ?

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Message-ID: <20250214071435.47d69038@kernel.org>
Date: Fri, 14 Feb 2025 07:14:35 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Johannes Berg <johannes@...solutions.net>
Cc: "Berg, Benjamin" <benjamin.berg@...el.com>, "netdev@...r.kernel.org" 
 <netdev@...r.kernel.org>
Subject: Re: [TEST] kunit/cfg80211-ie-generation flaking ?

On Thu, 13 Feb 2025 20:03:04 +0100 Johannes Berg wrote:
> > Oh, that's annoying :( Thanks for investigating.
> > I think the CI runs when the machine is overloaded by builds.
> > I'll add some safety for that.  
> 
> It almost feels like it shouldn't matter - couldn't qemu just kind of
> 'pause' the VM when the serial port isn't keeping up? I think you're
> using qemu? But I guess I could also see why that might not be something
> you want in other use cases...
> 
> Not sure, but it really seems more related to the output (buffering)
> than anything else.
> 
> Are you using the tools/testing/kunit/kunit.py script?

Yes. We do set:

Environment=PYTHONUNBUFFERED=true

So that the logs reach journald without a huge delay.
I guess it disturbs the kunit wrapper.