From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-x244.google.com (mail-wr0-x244.google.com [IPv6:2a00:1450:400c:c0c::244]) (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 C2C323B29E for ; Tue, 19 Jun 2018 08:26:54 -0400 (EDT) Received: by mail-wr0-x244.google.com with SMTP id e18-v6so20372710wrs.5 for ; Tue, 19 Jun 2018 05:26:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heistp.net; s=google; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=X9cc55Fi147VVefMBTxYzysoAo31X3eHliJTpxJFbPk=; b=J0iHSHaJrux1NRACTcWwTucnduJPpt/CHePET9+6L7yHjXWYdOU233BvVNc9vuZflZ 6h2jVGq0h6zpL0b7AMmYvrDP1Gnmm73p8h60xMHoAEehXbyXHvtIM3AbiYTF5IUbzNxR AsTZplANdn0JLzaOlRXZfCkWBVCy6vYGJlBJbuuinsue1fPZ1lf57OD6MY6TS6a6QMD5 trszQiU7jR7E37bvr1vUci4Sp6sy97ij6Hz9PwJghTCqrodcOgj/gHuDKSJMc3QtZp36 21kAqct1ijO0pYmpZlmdsdPT8MIzIxw/wYPAwPJs7cuag8ztfpqe/RtSLo1X59NUXpmz EXnw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=X9cc55Fi147VVefMBTxYzysoAo31X3eHliJTpxJFbPk=; b=mzLTqTPVBGTqcZVtVXeBYrtcWeJBZNlcPRUsgvdCoriK5RyA+S2kjFHrzjhzJqjYRq LOvEhyz/k6JjhLgyMETxzVITMH7LACh4rN6yvqqE8wqnEAgskGbVm3devRmONbpIax/i 3QB3d/A41dFMvBQdBJ5U/rWL2o+aREp5h0oMWKoMP6sPP8De3m/FeU/TXS02FQVrfpzw MxVDPC5QmMVwQZvJ6/rnSwSVuLSDKWmaI8W1T2+yO97jIHWoIxlz/0adx6n3WqStfU7g X6X0lg0aU2Oy4HsaFtl0NeRXrMcA8X3eZT0VmFlCeZ7eKjYwe9vQ4y/YbPB1c89tma5g 9tMQ== X-Gm-Message-State: APt69E1dZcHukx2RxoBiopnyDyfdcL98lNTXXKNpquOT1rSe53YaEPcN Rs4tmA/y8uvWmusPT+/RPfPpUw== X-Google-Smtp-Source: ADUXVKI7fbQdIrUy8amq+3LBfxZ5AKCXcfN3YEpwNteLEUUAmdjrACIsy0wW9kv5WmZra+WO3rZJrA== X-Received: by 2002:adf:adcb:: with SMTP id w69-v6mr15029426wrc.101.1529411213898; Tue, 19 Jun 2018 05:26:53 -0700 (PDT) Received: from tron.luk.heistp.net (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id 132-v6sm13910811wmr.33.2018.06.19.05.26.53 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 19 Jun 2018 05:26:53 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Pete Heist In-Reply-To: <877emvt2ij.fsf@toke.dk> Date: Tue, 19 Jun 2018 14:26:56 +0200 Cc: Cake List Content-Transfer-Encoding: quoted-printable Message-Id: <6D5348AC-921E-49D3-B6D0-9CC30874B80D@heistp.net> References: <87in6ft81g.fsf@toke.dk> <0FF888EC-4FF0-4AAE-B2B8-79A10B0B5A9E@gmail.com> <877emvt2ij.fsf@toke.dk> To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Mailer: Apple Mail (2.3124) Subject: Re: [Cake] the Cake stalemate 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: Tue, 19 Jun 2018 12:26:55 -0000 > On Jun 19, 2018, at 1:54 PM, Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >=20 > We also saw a bug on 32-bit MIPS where some combinations of 64-bit > netlink attributes would cause stats display in tc to fail. However, I > believe this is more a case of Cake exposing a latent bug somewhere in > the tc or kernel netlink code (alignment issues, perhaps?), and so I'm > not sure it is necessarily a blocker for merging Cake. However, if > someone could take a look that would be very helpful. I forget if the > current head of the cobalt branch exposes the bug, but I think it = does. > It's quite obvious when it happens: no stats output whatsoever... I have a 32-bit MIPS in my ER-X, but it sounds like what I saw = (outrageous refcnt values) was something different: qdisc pfifo_fast 0: dev vtun1 root refcnt 23227372115329026 bands 3 = priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 Sent 3696 bytes 44 pkt (dropped 0, overlimits 0 requeues 0)=20 backlog 0b 0p requeues 0 qdisc cake 800a: dev ifb4eth4 root refcnt 23227372115329026 bandwidth = 30Mbit diffserv3 dual-dsthost nat ingress split-gso rtt 100.0ms raw = overhead 0=20 Sent 41906985 bytes 41340 pkt (dropped 347, overlimits 57700 requeues = 0) This may be related to its old 3.10 kernel though (BTW, looks like = Ubiquiti will move to 4.9 soon, alpha is out=E2=80=A6). However, if there=E2=80=99s a way I should try to reproduce something on = this hardware to take a look, send any info you=E2=80=99ve got (how to = add 64-bit netlink attributes?). I even have a spare ER-X on which I = could put OpenWRT in case I need to be working with a more modern = kernel=E2=80=A6