From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C692B240222; Mon, 13 Jan 2025 16:08:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736784494; cv=none; b=TavPW/3TcqKewioHOeuX0Jo3ffA24u1qfjM6dybMecqfXZgOhxvEmIjmsRobrirri6FFdOYCCxS8dbl4WU1ltnmOE/xk33iaxn3hfX10UiFH5KwB0bmRuX+c8qKqTcdtvnrpiNr+CBXWY+vjEgLa7NgoFF0ok0bSypwmOyR0wUU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736784494; c=relaxed/simple; bh=dgerstlTpopGh/q8qWlcYF6PwZJwD8pfm+3tMjFphkc=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=dEVUVhFkj7J+AuY2zOoJ6ZzA58TH7QP422Cg9HN6xmPMAkPClis1uC8bTgO/ZUgZj3Jeu1gFsnzEEBbpMNj1Qq8IxMd3NaW7rs/wmKDKXfArzb6YT6sBwF4cuhGy5TAO0/UiBCEsjrO/fALzvo7GR4u7MDfft+jAN8ABxuk0Xgk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kFPw+A+u; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kFPw+A+u" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46556C4CED6; Mon, 13 Jan 2025 16:08:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1736784494; bh=dgerstlTpopGh/q8qWlcYF6PwZJwD8pfm+3tMjFphkc=; h=Date:Subject:From:To:Cc:References:In-Reply-To:From; b=kFPw+A+uHIzKGjirxoXPYyClS1zzQB078/prUEqdE2keKVSlRWNMp8g8MODeVCCFs ONruqIPLz9fzHZHPVoGbWmHdI7R0sVd8ER1U8lAFl5LDo7hOp8IbjrzwkRtXwWXPuY 53tBVD/qq6XzZUihTRJIWwvHRAZd3LdbwWmniwEe/uF1sHtUHhPDYHQlHtZkygupua ZfJyKs+XiOYxvtjLp8BKZJoW6CbbpNA9AtL5qGHt/BibY3r0FAevqA21PuORX4kN6d P73nF8+qGnnpNi3LQTdm30gC5wGP6zfg8G2qmXwS3cj9TYQyvGT+ow/DFFpk7k9zUF R8Gdm4KpofeLg== Message-ID: <22a1d42b-3015-47cf-b3d9-46d0ceb63ebc@kernel.org> Date: Mon, 13 Jan 2025 17:08:02 +0100 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta Subject: Re: [TEST] mptcp-connect From: Matthieu Baerts To: Jakub Kicinski Cc: Netdev , MPTCP Linux References: <20250107131845.5e5de3c5@kernel.org> <1ac62b6e-ee3d-499a-8817-f7cdfd2f2db5@kernel.org> Content-Language: en-GB Autocrypt: addr=matttbe@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Jakub, On 08/01/2025 11:07, Matthieu Baerts wrote: > Hi Jakub, > > (+cc MPTCP list) > > On 07/01/2025 22:18, Jakub Kicinski wrote: >> Unfortunately mptcp_connect.sh has started flaking again :( >> Looks like it started around Dec 30th, so one of the recent PRs > > Thank you for the heads-up! > > After the last PR, I was focussing on monitoring simult_flows.sh -- the > recent behaviour changes could have affected it -- and forgot to look at > the others, sorry about that... > > It looks like our CI doesn't have this issue, but the builds are less > frequent [1]. I'm going to investigate that ASAP. It was not easy to reproduce it, but Paolo managed to find a fix for it [1]! Out of curiosity, is the netdev CI not too overloaded? To reproduce this issue on my side, the host had to be quite busy: not dying with stress-ng using all resources, but still competing with many other processes, e.g. a kernel compilation running in parallel. I'm not complaining here, because this situation helped finding this important issue, but just curious about what to expect, especially for more "sensitive" tests :) On the MPTCP CI, some unessarry KConfig are disabled and ccache is used to reduce the build time. Also, RETPOLINE is disabled (+ vng --append mitigations=off) to save some CPU cycles during the tests. [1] https://lore.kernel.org/netdev/20250113-net-mptcp-connect-st-flakes-v1-0-0d986ee7b1b6@kernel.org/T/ Cheers, Matt -- Sponsored by the NGI0 Core fund.