From owner-freebsd-arm@freebsd.org Sun Oct 4 22:51:18 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 566E3A0E042 for ; Sun, 4 Oct 2015 22:51:18 +0000 (UTC) (envelope-from freebsd.asc@strcmp.org) Received: from olinguito.schwarzes.net (olinguito.schwarzes.net [IPv6:2a01:4f8:7d:1b5::1]) (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 38BC0147B for ; Sun, 4 Oct 2015 22:51:16 +0000 (UTC) (envelope-from freebsd.asc@strcmp.org) Received: from [62.109.78.35] (mosquito.schwarzes.net [62.109.78.35]) (authenticated bits=0) by olinguito.schwarzes.net (8.15.2/8.15.2) with ESMTPA id t94MpAhG061884 for ; Mon, 5 Oct 2015 00:51:11 +0200 (CEST) (envelope-from freebsd.asc@strcmp.org) From: Andreas Schwarz To: freebsd-arm@FreeBSD.org Mail-Reply-To: Andreas Schwarz Mail-Followup-To: freebsd-arm@FreeBSD.org Date: Mon, 05 Oct 2015 00:51:08 +0200 (CEST) Message-ID: <47058a741b7.66610654@mail.schwarzes.net> In-Reply-To: <46f856107c4.4a22ef6d@mail.schwarzes.net> References: <55A7D8CE.4020809@selasky.org> <55B23276.8090703@selasky.org> <55B73113.2020308@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> User-Agent: YAM/2.9p1 (MorphOS; PPC; rv:20140418r7798) Subject: Re: DWC OTG TX path optimisation for 11-current MIME-Version: 1.0 Content-Type: text/plain X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (olinguito.schwarzes.net [78.47.41.143]); Mon, 05 Oct 2015 00:51:12 +0200 (CEST) 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: Sun, 04 Oct 2015 22:51:18 -0000 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 -asc