From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fout-b6-smtp.messagingengine.com (fout-b6-smtp.messagingengine.com [202.12.124.149]) (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 1415B49364E; Sat, 22 Aug 2026 12:03:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.12.124.149 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787400208; cv=none; b=p67TyVXGWlDkJjIOIPTHKil3K360+x0l+zIgC5/SjvUvcb2+zJEZTKDqIiclLXXJ4U/43JlJQia/zesZglZcdNl2egnjgN5X8hyY7ZCcs1oOv6ycFXGL6xL3nXkb6WOb/ONrl2jzJyUWrl/fzJYZ2TMvQg5iLHQpn2iO6h+gQUU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787400208; c=relaxed/simple; bh=rNJKTbTifnNGotg6lX4H/d/HzhAbv8OwwY3tZoUNHYk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=MgSLIkADDRGXovI6zwGiRhE/LTLrB4zTMTVl+H1r0cP8IE06nfyhv7ko2OcwT4eUCOtBedN+ccP9nkIc5Tqtf2w+CfxhvwGRjbd9rOMmg2IgbYIxcWBnPSvTq0BLUvyy8yZ2zDyuzSgUJl2PPqC7kmUJeuET7LvGouxCQ5IbjE8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=fastmail.im; spf=pass smtp.mailfrom=fastmail.im; dkim=pass (2048-bit key) header.d=fastmail.im header.i=@fastmail.im header.b=nK7O0PDZ; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b=PzOBFJFa; arc=none smtp.client-ip=202.12.124.149 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=fastmail.im Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fastmail.im Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=fastmail.im header.i=@fastmail.im header.b="nK7O0PDZ"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="PzOBFJFa" Received: from phl-compute-06.internal (phl-compute-06.internal [10.202.2.46]) by mailfout.stl.internal (Postfix) with ESMTP id 292401D000D6; Sat, 22 Aug 2026 08:03:26 -0400 (EDT) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-06.internal (MEProxy); Sat, 22 Aug 2026 08:03:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fastmail.im; h= cc:cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:message-id:mime-version:reply-to:subject:subject:to :to; s=fm3; t=1787400206; x=1787486606; bh=NGC2Ea3wjGV5zv7cz0rFV t8MXQMwMsonzcW8UdzfdxY=; b=nK7O0PDZtyUFR/HHvdaYLYmz2GTu+AIwsONDv ILLbydKtwbIV5RwXKXb3PhooOzY03dir8C9iYHjpnWssE0KGWsnpOucFh8hZMi0h bLNRByPIPWjmiGShpBcTp027tan+/A870uehgY2qoby7nVHUhTOiZ8XitNTC5967 FDcyNtRLRIW/x6cpXHWYGR50X92oGk71SO2nmXeA6qZ0B4nLT8LFhZqHLeowXk4h FeX4ouFasNiRlyZlpTxXmoAA57ZtX8Fyieq1CdGt1CoEdMK8xW3puIf3Yn+NpnSN S33iaVcIZy9W87YCVbbliz6utxJfdW8N+r/T3/6Zu/QyTE4WA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:message-id:mime-version:reply-to:subject:subject:to :to:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; t= 1787400206; x=1787486606; bh=NGC2Ea3wjGV5zv7cz0rFVt8MXQMwMsonzcW 8UdzfdxY=; b=PzOBFJFaxVP8b86ktI6OSubaSLoU6ke65x9MHOQf7A630ygSjv8 euJVQtrgsu4E9xJHgywefeMGbZgQSoWaoqCxytAt/E8YnOClB5sSRMbYXnoONmeS A2qG9tI8oRU8fZtuSP+4XygTieWH67G9QVlmzqHf03SG5kGR+DtQ3Nj4VQpiuPj4 zqLY661f3Kvv+OtBoTzmtFbRZ32E044sJCa6aB8+NdGA0mzWKWCtwD3ltTaGrrUO wb/llky7Wn7E64pRz+8KOB5JU9Ef2bZmoeU5p47bfD+KB2bUiLVlp92+Db0mPTdY 0ftoAhpIhCEjp/Y70dx0dlkmRmi+6sXpJtQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: dmFkZTGAUtaR5SGMZtwmGZA8zXTccG+8x2jFK2i5GYpgMeIlQtG634HopO170zJ1zeDPPS H+G7nclAdPw5noyu3EOPbJRvvXFL5l7UZ6LEs8l1G2w7vOMMJ7E1xfmU0WGv1fsFbbfEk7 W6esyeJBln+magL22D8VfAt6oDwgHgc9UgHc/j0rFoP2Ppqi/JbUtxOtB2xLCnf9KL/rQ/ AjU46IM44edi8rT2I/y81ux5p0XW69EmWXd4qxXRUTPKA+zAXYkYFf/V4Dhz/6hP+51p9H /XArFRdXEPC0YK8pdt7/95dThtvUcY+KMKnQlafG8kiP0eebeduG1fPzYyU7/4KGwel+YR lqrq3D7X+US30aTztsuNAziSiKGjAceTYnh520ODPfYxQ1ml/mnaIscSA/li3sqKBgkxAh keMB5SqPDJ3WybqOGYcEtePnHSPi6M25TWjE1pGhdbbS1hOldCHW3VG/7ei70as3oB1Zb8 y1duQwM0Sfg6rdrsp5vVlSxvKEowk+5zjGWnkuzKrQiyiiddJ8q5n/CzIJs/CYgZWFxRLS 1TAJX3aOhvcsikBlybFq/3NVcRVA6nBtgHUoBScE8XWwLw2em3MCpD94c7ME7vecxc6taA 5QiYA1VQ8wekEqNVpBcSLbg2YWabRC5sK7PzcQjA9ByxROZLBxHKTC4YaHnw X-ME-Proxy: Feedback-ID: i559e4809:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sat, 22 Aug 2026 08:03:25 -0400 (EDT) From: Alice Mikityanska To: Matthieu Baerts , Paolo Abeni , Jakub Kicinski Cc: Eric Dumazet , "David S. Miller" , Simon Horman , Shuah Khan , Nikolay Aleksandrov , netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, Alice Mikityanska Subject: [PATCH net v2 0/4] Improve stability of big_tcp_tunnels.sh selftest Date: Sat, 22 Aug 2026 15:03:04 +0300 Message-ID: <20260822120308.1165200-1-alice.kernel@fastmail.im> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Alice Mikityanska This series addresses flakiness of big_tcp_tunnels.sh discussed at: https://lore.kernel.org/netdev/349c582c-73e3-468c-91cd-ad6cc3562700@app.fastmail.com/ Lower the thresholds to avoid failures like this (number of packets below the threshold): https://netdev-ctrl.bots.linux.dev/logview.html?f=/logs/vmksft/net-dbg/results/754376/28-big-tcp-tunnels-sh/stdout Tweak tcp_min_tso_segs and initcwnd to avoid failures like this (BIG TCP doesn't kick in in slow configurations): https://netdev-ctrl.bots.linux.dev/logview.html?f=/logs/vmksft/net-dbg/results/751124/21-big-tcp-tunnels-sh/stdout v2 changes: Use $KSFT_MACHINE_SLOW instead of probing kernel config. v1: https://lore.kernel.org/netdev/20260814194124.3102581-1-alice.kernel@fastmail.im/ Alice Mikityanska (4): selftests: net: Wait for netserver to launch selftests: net: Lower threshold on debug kernels for big_tcp_tunnels.sh selftests: net: Lower threshold with csum offload off in big_tcp_tunnels.sh selftests: net: Fix slow configurations in big_tcp_tunnels.sh .../testing/selftests/net/big_tcp_tunnels.sh | 38 +++++++++++++++++-- 1 file changed, 34 insertions(+), 4 deletions(-) -- 2.55.0