From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qe0-x234.google.com (mail-qe0-x234.google.com [IPv6:2607:f8b0:400d:c02::234]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id A58C021F1C9 for ; Tue, 12 Nov 2013 09:27:47 -0800 (PST) Received: by mail-qe0-f52.google.com with SMTP id t9so1561942qeq.25 for ; Tue, 12 Nov 2013 09:27:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=KafsyaqqUwuiJLk4Ctx8f0/Yz6FGBv2WdwcHQRuqxV4=; b=w4eqF8po5h7/gV8eCbiHLu0Fr6KzdK2IGhqmoORZCGQ0mxNDSEGo0bqH62H8Zf7mzC ar9QAWDTnrreF7rVwS3lu1BPEtqKmAbcBScq5SKgxABhByovsBmSuOBBTx/CLb2u2UnW VWlIBi+M4lnUS0TyEfZkl/jSC2e4+aLrASieLjBnXWkXeYhNRH60afSotWFqml1Jf2xg ddGunI6oiZdHcrn+9PYgnH6pWzHwiJecbyUkezHZOANWe6AaCs+bKBLE5RHxp52qAgq2 x8puSj10T3c3wu936KraPVkKNb3oGQ+H0YNZN/R6ESySHbsyYzQZnCuFgy25I0fzl2bE EcLw== X-Received: by 10.229.58.4 with SMTP id e4mr58418163qch.22.1384277266599; Tue, 12 Nov 2013 09:27:46 -0800 (PST) Received: from richs-mbp-10705.home.lan ([64.222.218.9]) by mx.google.com with ESMTPSA id p17sm66015871qak.4.2013.11.12.09.27.45 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 12 Nov 2013 09:27:45 -0800 (PST) Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 7.0 \(1822\)) From: "Richard E. Brown" In-Reply-To: <51BF9432-6FC2-4A14-B147-13F1E779CA93@gmail.com> Date: Tue, 12 Nov 2013 12:26:35 -0500 Content-Transfer-Encoding: quoted-printable Message-Id: <876F5928-D2F3-417D-8927-21AE2C5CC136@gmail.com> References: <56442F41-68E0-495A-B6B3-87AC2910EBED@gmail.com> <47AA0EBF-0886-444B-9A04-EB23105A8A3B@gmx.de> <51BF9432-6FC2-4A14-B147-13F1E779CA93@gmail.com> To: Sebastian Moeller X-Mailer: Apple Mail (2.1822) Cc: cerowrt-devel@lists.bufferbloat.net Subject: Re: [Cerowrt-devel] CeroWrt 3.10.18-1 Field Report X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Nov 2013 17:27:47 -0000 > On Nov 12, 2013, at 4:11 AM, Sebastian Moeller = wrote: >=20 >>> - Had to enable and set AQM parameters, since they=92re saved = differently from the QoS settings in the 3.7.5-2 firmware. Set = parameters to ~ 90% of link speeds=20 >>=20 >> Just curious, did you specify overhead and encapsulation? No, I simply used the defaults on that page. >>> - The kernel.log shows lots of the stack traces below: 2-5 per = second on a long-term basis.=20 >>=20 >> These look quite weird, the error is a slow patch warning from = hfsc_schedule_watchdog . But, hfsc is the queuing discipline used by = stock OpenWrt, cerowrt , so far, has only used HTB (last I checked was = cerowrt 3.10.11-3). So my guess is that you were running the default QOS = system instead (or worse in addition) to cerowrt's. It would be great to = see the output of: >> tc -d qdisc ; tc -s class show dev ifb0 ; tc -s class show dev ge00 >> to check what is up with the AQM system... >>=20 >> Did you by any change use the QOS tab in 3.7.5-2 instead of running = AQM or simple_qos.sh from rc.local/ifup? If so did you direct sys = upgrade to keep the old configuration files? Yes, I was using QoS in 3.7.5-2, and I kept the old configuration files = (so I didn=92t have to re-enter credentials for my DSL link, etc.) I = guess it seems likely that I may have been running *both* (!) Would a better upgrade path be to start with 3.7.5-2, then disable the = QoS, then flash with 3.10.18-1? (My intuition tells me that this would = remove the QoS settings from the loop=85) It=92s pretty easy to re-flash with 3.10.18-1 and run the tc commands. = If disabling QoS makes sense, then after I do the =92tc=92 experiment, = I=92ll re-flash with 3.7.5-2, turn off QoS, then reflash to 3.10.18-1. = But it=92ll have to wait =92til dark so no one else is using it. :-) Rich