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 215122BEC28; Thu, 17 Jul 2025 14:42:44 +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=1752763364; cv=none; b=Y3/0KVeDxh8/+Mr+NGiia64T55mRtL9DfUetuPD9FvNconGdGNIx26qcQ4VtNQjMQOq4uNrGqoqVKd6Wuyz5MKH+uw8TuAlsh10z7kywBXxgKVVLuXa60J8ZiD9rc6sMvpn0BXefFeK3+NufeiyUhgB492eeBXPEaPjAvoGpsKo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752763364; c=relaxed/simple; bh=26PgzRbEgkOwg5Xdk9wssF4RF1imGTHlSB4l1VKtd10=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=nRSjVZBdS3muwlffYnsSD+dVuXWAU239ysyUW7yINCDtm2ELd0p6bP7NTry3wlEQf5xBWmpm5FL7be4o1JSRufUdL96/sWIzAfqLuSg7Wn4ZZ0mncDOhfyh9lFIJSZeglpxkeodDc4OF6uZ9NjoPYZttnzExB7f3Ui2zTOStJzE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UGJTrNUK; 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="UGJTrNUK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 57055C4CEE3; Thu, 17 Jul 2025 14:42:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752763364; bh=26PgzRbEgkOwg5Xdk9wssF4RF1imGTHlSB4l1VKtd10=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=UGJTrNUKQS8J0ODj759/OrImkMqic2w5OQg2SOwDFQapO0P7ugFO5n37HV1GIrD3j flwQncGtC1qTM9CaZHvPCCs/E/JRQ51zshwalLpUNbx+P2Vy5cIGR1LN/5XW2f1NIX 4EX44MSX9KE+vhAltlr/UIt8OdPruFwdCXfGWZBjHxVPtFkLp+nzxxF/BaVvDijlMF C687BQClWY0JqXXHssLBEFRf0r4letbV15MjGTYMyIQud2o8zTO0kZXhdjN0Z0+IvH 5KDvBnBobivQtLzMfR6yBeHK7PeaBWRX6iPzWY2E4pbcSHt4spg421hY9DhU8X9PxM xePUoZsR6Noag== Date: Thu, 17 Jul 2025 07:42:42 -0700 From: Jakub Kicinski To: Matthieu Baerts Cc: mptcp@lists.linux.dev, Mat Martineau , Geliang Tang , "David S. Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , Shuah Khan , Christoph Paasch , Davide Caratti , Florian Westphal , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH net v2 0/2] selftests: mptcp: connect: cover alt modes Message-ID: <20250717074242.1ef5d441@kernel.org> In-Reply-To: References: <20250715-net-mptcp-sft-connect-alt-v2-0-8230ddd82454@kernel.org> <20250715185308.2ad30691@kernel.org> <20250716072602.386a8963@kernel.org> <20250716083632.72854bd5@kernel.org> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Wed, 16 Jul 2025 18:35:11 +0200 Matthieu Baerts wrote: > >> And just to be sure, no CPU or IO overload at that moment? I didn't see > >> such errors reported by our CI, but I can try to reproduce them locally > >> in different conditions. > > > > None that I can see. The test run ~10min after all the builds completed, > > and we wait now for the CPU load to die down and writeback to finish > > before we kick off VMs. The VMs for various tests are running at that > > point, the CPU util averaged across cores is 66%. > > Thank you for having checked, and for the explanations! > > OK, so maybe running stress-ng in parallel to be able to reproduce the > issue might not help. We will investigate. connect tests failed again overnight. Now I see why Paolo was responding on Eric's series, that seems like a more likely culprit..