From owner-freebsd-arm@freebsd.org Mon Oct 5 06:05:00 2015 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4D9D5A100C9 for ; Mon, 5 Oct 2015 06:05:00 +0000 (UTC) (envelope-from hps@selasky.org) Received: from mail.turbocat.net (mail.turbocat.net [IPv6:2a01:4f8:d16:4514::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 01398ECE for ; Mon, 5 Oct 2015 06:04:59 +0000 (UTC) (envelope-from hps@selasky.org) Received: from laptop015.home.selasky.org (cm-176.74.213.204.customer.telag.net [176.74.213.204]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id 6BADC1FE022 for ; Mon, 5 Oct 2015 08:04:56 +0200 (CEST) Subject: Re: DWC OTG TX path optimisation for 11-current To: freebsd-arm@FreeBSD.org References: <55A7D8CE.4020809@selasky.org> <55B8AB76.7030603@selasky.org> <55B8B297.1010008@selasky.org> <20150729154516.GH78154@funkthat.com> <55B8F5EC.2050908@selasky.org> <46ad096c958.1a82a175@mail.schwarzes.net> <55B9C3E2.5040501@selasky.org> <46ae815c7c3.447237c8@mail.schwarzes.net> <46aece00b53.3c1cdc1f@mail.schwarzes.net> <55BB2A5F.9000502@selasky.org> <46baa16c4ce.6efd29ef@mail.schwarzes.net> <55CF31A1.5080205@selasky.org> <46ce372c895.20050775@mail.schwarzes.net> <46d0a4441bb.41f6f91d@mail.schwarzes.net> <55DD5C0A.2050401@selasky.org> <46d8b55830c.48a059ec@mail.schwarzes.net> <46e495e484.66704618@mail.schwarzes.net> <46f856107c4.4a22ef6d@mail.schwarzes.net> <47058a741b7.66610654@mail.schwarzes.net> From: Hans Petter Selasky Message-ID: <5612136D.8090800@selasky.org> Date: Mon, 5 Oct 2015 08:06:37 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <47058a741b7.66610654@mail.schwarzes.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Oct 2015 06:05:00 -0000 On 10/05/15 00:51, Andreas Schwarz wrote: > On 25.09.15, Andreas Schwarz wrote: >> On 24.09.15, Svatopluk Kraus wrote: >> >>> I finally found a way how to get something what could be analyzed >>> considering the problem with smcs warnings, slow console response, and >>> other oddities. And it was Michal Meloun who figured out how the >>> problem comes up. He was so enthusiastic and fast that he got me no >>> chance, no chance at all to figure it out myself. ;)) Thanks goes to >>> Bob Prohaska too who pointed me to stress2 which triggers the problem >>> even with all KTR classes compiled in kernel. >> >> This could explain why the legacy BSD scheduler was so stable compared to >> ULE. I'll patch and start my buildworld loop test (which will take a week >> (10 loops)). > > With this patch my RPI2 is stable like hell. I've completed 10 buildworld > runs (with -4) in series, without any issues. Please commit, if not done yet. > > > root@pizelot:~ # uname -a > FreeBSD pizelot.schwarzes.net 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r288200M: Fri Sep 25 08:35:44 CEST 2015 > root@pizelot.schwarzes.net:/usr/obj/usr/src/sys/RPI2-B-ASC arm > > https://svnweb.freebsd.org/changeset/base/288447 --HPS