From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-x430.google.com (mail-wr1-x430.google.com [IPv6:2a00:1450:4864:20::430]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 1411C3BA8E for ; Fri, 4 Jan 2019 17:12:28 -0500 (EST) Received: by mail-wr1-x430.google.com with SMTP id t6so37788173wrr.12 for ; Fri, 04 Jan 2019 14:12:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heistp.net; s=google; h=from:message-id:mime-version:subject:date:in-reply-to:cc:to :references; bh=vt3iHdIwFLyFb2RZgaz2SPMvNZyeQW0gG74DoL2HxJM=; b=N8kuXcxeow5swcN7pjgzGq6Ef+ufExrvBVPd15P5E2DKdzGB7Mao59uYUYjLCYrBBh zCF4A//WD4cD85iknrx3e3S1wl/mo7JgZbDQVwr9thghH6BpvmjVHrvI1UnkkrLZ+jJl cISA1+ch1zdvyoywkWHI2jyqe0wKPZjnYXMXOzQ6asVylMYvQ5Evw4/ikH9U+zFOLMoy a61RBNmE4eIVF2bL6iGmI9kIBJoGDN2CeuOQuwT3vfya3t5P3P/BeOGQ2qUY8wWZpqlr cJCLc6OMzv3DunDFx/EeFkXscmFNpaOwuIT2K0QM4oXrgfGkf5CB4MWtxuAc0aPPn051 n83Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:message-id:mime-version:subject:date :in-reply-to:cc:to:references; bh=vt3iHdIwFLyFb2RZgaz2SPMvNZyeQW0gG74DoL2HxJM=; b=XhlGV4vIcYrI3vzDe53lZjQrs8/oxGE7nuLVwb83pjOIC/cJAjyzB2QIfhgX+NH5ZG rfFa0XodzESdEiI6wbvuH31s1lHUz8U/2TNcjNoFrPv0HVtwcr2Bbrjy3syk9+qKscKZ 9yR4+gjeEC/krm1RDICJyoLXU6ScEAm+nMA7gNkQ3bHuaNOHO0oDKp0mrkivcZHfB3An 3oFYMaa+Y5QscDfN4qQPwuLA5dmMkMoVB1xAWEkX46O+MaQ3MUrjPFUzaI4M+reZDR3s 59xFbQ3GOUmH/3/0PyM5XWCsnwbOJD2Oz1W8LAAi7gIJTL9d98lsn0rDELhpOhERScfH BPGw== X-Gm-Message-State: AJcUukd08dUZ/RK0Vn2T6Fmyc+pMwEU/0HmG/+le/1pO2EdjmglI0Q0V aaNjvs2nHT/PgftxuIcrM2r5slqf4Co= X-Google-Smtp-Source: ALg8bN40wNqF3OUpgmhZ5f2CEhOAZW6sM08cQ9iy8O1cvuUUTErF4yot379nQzAQtotUZTKCzXqSkg== X-Received: by 2002:a5d:5182:: with SMTP id k2mr45029163wrv.121.1546639947144; Fri, 04 Jan 2019 14:12:27 -0800 (PST) Received: from tron.luk.heistp.net (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id t70sm2770321wmd.36.2019.01.04.14.12.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 04 Jan 2019 14:12:26 -0800 (PST) From: Pete Heist Message-Id: <0D87CCB9-8465-4F4F-9045-5B742CBD4B79@heistp.net> Content-Type: multipart/alternative; boundary="Apple-Mail=_EBF273AC-662D-4EC1-94FC-834836726040" Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Date: Fri, 4 Jan 2019 23:12:25 +0100 In-Reply-To: <4C422792-7E51-4DBA-A229-FA7D3F987FB6@heistp.net> Cc: Cake List To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= References: <5482A3CA-9C36-4DDE-A858-24D8467F70C7@heistp.net> <8736q8yumt.fsf@toke.dk> <4C422792-7E51-4DBA-A229-FA7D3F987FB6@heistp.net> X-Mailer: Apple Mail (2.3445.9.1) Subject: Re: [Cake] cake infinite loop(?) with hfsc on one-armed router X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Jan 2019 22:12:28 -0000 --Apple-Mail=_EBF273AC-662D-4EC1-94FC-834836726040 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > On Jan 4, 2019, at 11:10 PM, Pete Heist wrote: >=20 > Ok, fwiw one doesn=E2=80=99t actually need a one-armed router or VLANs = to reproduce this. Just do this: >=20 > tc qdisc add dev $IFACE root handle 1: hfsc default 1 > tc class add dev $IFACE parent 1: classid 1:1 hfsc ls rate $RATE ul = rate $RATE > tc qdisc add dev $IFACE parent 1:1 cake # add no-split-gso here, or = else=E2=80=A6 >=20 > I=E2=80=99ve tried it as far as 4.9.0-8, but no farther. It=E2=80=99s = not much of a priority for me now that I have a workaround for it... Correction, add =E2=80=9Cno-split-gso=E2=80=9D to fix it, not = =E2=80=9Csplit-gso=E2=80=9D. That=E2=80=99s lack of sleep, and I will go = correct that now=E2=80=A6 :) --Apple-Mail=_EBF273AC-662D-4EC1-94FC-834836726040 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
On = Jan 4, 2019, at 11:10 PM, Pete Heist <pete@heistp.net> = wrote:

Ok, fwiw one doesn=E2=80=99t actually need a one-armed router = or VLANs to reproduce this. Just do this:

tc qdisc add dev $IFACE root handle 1: hfsc default = 1
tc class add = dev $IFACE parent 1: classid 1:1 hfsc ls rate $RATE ul rate = $RATE
tc qdisc add = dev $IFACE parent 1:1 cake # add no-split-gso here, or else=E2=80=A6

I=E2=80=99ve = tried it as far as 4.9.0-8, but no farther. It=E2=80=99s not much of a = priority for me now that I have a workaround for it...

Correction, add =E2=80=9Cno-split-gso=E2=80=9D to fix it, not = =E2=80=9Csplit-gso=E2=80=9D. That=E2=80=99s lack of sleep, and I will go = correct that now=E2=80=A6 :)

= --Apple-Mail=_EBF273AC-662D-4EC1-94FC-834836726040--