From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 11BEC39EF22 for ; Tue, 24 Mar 2026 03:33:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774323195; cv=none; b=XO+pQPCCMqwHAQ2pjLtd7OWaOeccJ+NosmH+EZKJcyxs8YY2z3PZB87ig+ubZSHp5oLLnZY6AyqLYtXaFeqfJHLIyNcKiNbiv3zpJB52UVe4tv0KsErgNVtd9s2zkk3S0HmWnyG+c/V7tutzveg9kUEMKj3YnJNpqXaJCW9GupI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774323195; c=relaxed/simple; bh=f5eH5RegOkM7tGHSLW8Dz7E6BRWVYutqTpKrSDIEH2A=; h=From:To:Cc:Subject:Message-ID:In-Reply-To:References:MIME-Version: Content-Type:Date; b=nlak7P01ny3WaZxzu05zxy8QP4xPC8oOv8o9dGRGhUlAhIU+i1EwX/RejqLKBWRKKTC2OOC54Hr5dBhrUOTWrM/eu1AstAjcdc5pbYPVgZaDp+0sicBEbpH2sI5VHIGhH5D6EycJtuTsjIZq3OCQYV+MzLkW36Bn2sstsrp4aWs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=Pc1uDuAO; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b=G0JybkEC; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Pc1uDuAO"; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b="G0JybkEC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1774323192; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Bba+U3knOzeMlTadL9yBzgVDq+/4BqrOIHttcs+EzXc=; b=Pc1uDuAOQnI7g6b87EJ0uQEDxI/0hFer547ehGlMdszxEgTOxlI3wzIHqWv5yEXyWI45wE U9x2OwiLYvWe7WC9e8jpMcjavuItvSLvXezMekMd3fH8eOciHt3OfY7jo4woevUNooyYvl QLSA8ESjrRiNw4Tv0bglBhIO6MtcCTQ= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-675-D6d3mkn8PV6CpcGCcQ0BZA-1; Mon, 23 Mar 2026 23:33:10 -0400 X-MC-Unique: D6d3mkn8PV6CpcGCcQ0BZA-1 X-Mimecast-MFC-AGG-ID: D6d3mkn8PV6CpcGCcQ0BZA_1774323189 Received: by mail-wm1-f71.google.com with SMTP id 5b1f17b1804b1-485c45885e6so54045815e9.0 for ; Mon, 23 Mar 2026 20:33:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=google; t=1774323189; x=1774927989; darn=vger.kernel.org; h=date:content-transfer-encoding:mime-version:organization:references :in-reply-to:message-id:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Bba+U3knOzeMlTadL9yBzgVDq+/4BqrOIHttcs+EzXc=; b=G0JybkECPPKgl7jP5qzZW9XuxC5JXfTTOgYCR3mhb0y36p4p2xhJIY7P/jfVLzdJWy OZ3dHyYLqqG1SdP4JzIDCoYY8nB+9fOPevO2OCtM/Ob3qjKHuUWyFsSEy3vNjl2KD18w 5mHMuFfvov0kdw9ve33hYp6jzsTVWS+mxodQUkkjdaVjCapJJaHnitwpWQMW/bDddhOP KCBtrXxgA6plpLXbMQS/CVTUjivoE9Zj3w+3Yt8BKrGnaWigcXhfGcaoDUesOiTKVFkE IiJFd1tw0Ai/4FhY8Bmd00T4d4opPNQ+FpEsi5nCPE19dGSz9JAS91pOiBiM+DAzC/lA jc7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774323189; x=1774927989; h=date:content-transfer-encoding:mime-version:organization:references :in-reply-to:message-id:subject:cc:to:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Bba+U3knOzeMlTadL9yBzgVDq+/4BqrOIHttcs+EzXc=; b=BdnyTEWRBo0su6rDE0M/xkdqJEcJwXRtROksC9NCQ4x2FkPyM7cnXGgoUXYg2i5rPu DDOE//an02msnaoSvJAEBVt1NWN3JmaAc60shV3uh+QEpvNNdzFnQ1WOe5SoVgAyvdmJ k8ylox1lNc65Gb/rg3nOju1qIHdvMMBrRWHBsfBaBlgJT3wRcZ2k5cHmM3E9YP9p1OKl 9+P53rjSobkV3QOoCfYCYtML7euXgUlUNR+czPiJgvjjSZqj9XAmR5uoIhCpyzpdt6jJ OGvzi5nTab7YnpJBQVTtgdni4+l+3NOTzpEpPGSpqzXUdl7x1hidd81+2XUAwrkiwfyb ngpw== X-Forwarded-Encrypted: i=1; AJvYcCV9NBmXLH7nOKhiOwjDP4ngOs7YVUIjyHwL1SNemJHdBr6yvywXocJB6MFSGkW74wMrlSGti2Ik1/uEQ7Y=@vger.kernel.org X-Gm-Message-State: AOJu0YwHETY9IxGcjExXjfUZilWv7ocsBhlt5oJOROTSustv+tgzrSh7 76hBOgJtP7wKtW3+ylP/fVF5sZgDv7Kg7BOkqTTOFvgQ8zO0xtg8dT9G8yD01bJez0dcIsM7B8j SN4vWlaLJaBV1mc3tKuI2+7Do6BKqLyFqP7gSew9suMH05BYu80cFfDGJRByu5BkM3Q== X-Gm-Gg: ATEYQzzHDukkpFrUs/frdrluHNDl5KL+7fWvefx0VaTP6KnqOnIKYJx9bfSTOdVk2lF Ir8+VPSQDtYBwCNXCX41PrA3s5EOoRhzSBxazNpd18g8+1nm8CfN9AJiBai4PciqKi/xthyAvGD 5jrVxBuFkILB6nYK+RzLcfnh95PW+Qn8zDei2xSHMQ+lOxaxu24qBex7I+EjusDWq/Hd+ZZ5enO OefaoSdfsCPUDGXJ9iuWqDK02HAdD1ri0KKokG0TjLUORt7gKRatjX45hdlqaxng5ERXBnki2TE Ch3P0ezBU6yAQQPSYFY/zxh32pjm2qWOxPCjLMMZb9TuBai9fvqkwIZ9U+Zi7ChMblfkjjRB780 LGbpa2cycOdNjI7KTxhHHwncTV7hPu1+v8gJ+LDjjh+8NA3xazg== X-Received: by 2002:a05:600c:3112:b0:485:3f72:323f with SMTP id 5b1f17b1804b1-486fedb8c6emr207657975e9.11.1774323188801; Mon, 23 Mar 2026 20:33:08 -0700 (PDT) X-Received: by 2002:a05:600c:3112:b0:485:3f72:323f with SMTP id 5b1f17b1804b1-486fedb8c6emr207657675e9.11.1774323188210; Mon, 23 Mar 2026 20:33:08 -0700 (PDT) Received: from maya.myfinge.rs (ifcgrfdd.trafficplex.cloud. [176.103.220.4]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48711022f37sm11668195e9.9.2026.03.23.20.33.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Mar 2026 20:33:07 -0700 (PDT) From: Stefano Brivio To: Jakub Kicinski Cc: Aleksei Oladko , "David S . Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , Shuah Khan , Aaron Conole , Ilya Maximets , Eelco Chaudron , netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, dev@openvswitch.org Subject: Re: [PATCH net-next v6 0/4] selftests: net: fix false failures due to missing features and host interference Message-ID: <20260324043305.260d26ac@elisabeth> In-Reply-To: <20260323195813.7ebccd88@kernel.org> References: <20260321215908.175465-1-aleksey.oladko@virtuozzo.com> <20260323195813.7ebccd88@kernel.org> Organization: Red Hat X-Mailer: Claws Mail 4.2.0 (GTK 3.24.49; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Date: Tue, 24 Mar 2026 04:33:07 +0100 (CET) On Mon, 23 Mar 2026 19:58:13 -0700 Jakub Kicinski wrote: > On Sat, 21 Mar 2026 21:59:04 +0000 Aleksei Oladko wrote: > > tools/testing/selftests/net/pmtu-test.sh | 2492 +++++++++++++++++ > > tools/testing/selftests/net/pmtu.sh | 2492 +---------------- > > I think I asked twice already to fix the test instead of wrapping it in > another helper. Oops, I guess both me and Aleksei understood it as "fix the test _by_ wrapping it in another helper": https://lore.kernel.org/all/dd1f8981-b8ad-4a4d-b6c8-3333fb05c93b@virtuozzo.com/ hence the current version. Aleksei, if you need further tips other than what I was suggesting (assuming the only way is to run everything in a namespace), this could be another idea: https://git.netfilter.org/nftables/commit/?id=a9cadde4add1 -- Stefano