From owner-freebsd-ppc@freebsd.org Fri Jun 19 16:52:58 2020 Return-Path: Delivered-To: freebsd-ppc@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 693723329FB for ; Fri, 19 Jun 2020 16:52:58 +0000 (UTC) (envelope-from marklmi@yahoo.com) Received: from sonic315-54.consmr.mail.gq1.yahoo.com (sonic315-54.consmr.mail.gq1.yahoo.com [98.137.65.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 49pPxh60dCz4Vbf for ; Fri, 19 Jun 2020 16:52:56 +0000 (UTC) (envelope-from marklmi@yahoo.com) X-YMail-OSG: qnWPfhoVM1mdeRRIquQ0ij06GInFGwEzVFFCZWHHOOFgcUZ6BaZTiAsE6PiMGQX SJaEAOP5tjvyIG772zffYn8P7kSWKCp.RVOiOyU569UXr8ugzBywRf7PuN2MVFncNCvdaYk6EnxC 1mAeCdp3vkapYx_Et_kMsio.Sk3oPrI3wIz2jGY0uLoMGOXJbAENy_jptYjWsTSN3NVmujH.JO6q IRrNjgtJz2Ow9cBtPs6kkGKllRTNCib.guvs6uCaWmvRaqgrKeLwTSxq1Dd.OpST.UlvcsT5WGXE NdG9ju.VOiqcpZc4oW.cAjmTZrKuJBvMWve94vzVW3YlHtzL8DJdEU294si9slHVhU1gJB6j2EFa 8SGNYoNICV0OviRiOkk.7BdWIX4uv2zwzwcGdfP9aeF5VsXMyIIi0bz2cEyGXkRbAmJX_ENaibNw mXcMK6KNt7Mq_xJI4aKINsFMM34o.Ynu2KbeGrbbot_qYzZr5IlGR3Ewc2TohnfAMStaKGocSSWC IMmOPKhN4o.ntb_ziCjnQUETRT5Ig5wUPRbM9mIML61yw.nkEIQaeubM14gQgxMBdkOncNiK0v_J U0ARQglWB04EsmeYGFEOsPZJbVYvlPw_iuL9X0O9171YuiEgPfm1W1vOGQmeK1fkvoqdpdiXeDtO 6yMEIQUcnNm62zriscPAVlmdibLaqde23g9eyaqmCnrkqR80qh0iDNv9eyESfowZZGnYCB.HPc50 wGBYVKkWtRgGq9F0s7IZcFqnfgqnszduYTZS70tLYJmPZn3wglOZ6a.bLh7hwRYxftWShZwTvq_d g2mRUpo3TP7QxufgKnFt76AO.2uQOmGxOGo.HYZUVtJYSUxr.JrLwFy3fyiP.KE_vQcauNwLVyjE ypL1X83Si0OUDRrs.jIRM9cFvdDC5AQiO5kcpUAI_36lBU3113VFjXaETaAt.oK5CKnU.CpO3i5R A5BsNZtMal0vgtJNQy0xjttTrgc6UYjz5SiHd8SW4yWGNliLVuZtG8Q1gCdzjTOi8hqyV3EU3g6F XnMuCw009_jF0f7VVFJ5P2XPBFiERB3jCv1rj7wNbolsQTrox8gQXauD4mzsQhx9ZPp2TDYDb8U3 7hhHJCli8o7mAkDtW9.VqdJiIDmA_YuNm3mdXyljIXl.NDZkoNq5YtrOdKKaTagztWzMB8bEPAmG LfvHGx2p0IyziNpobx13SafwhiAgjHKJXtSAyrHMBU_30kNiqCiA2EqrNy9LfkvIGA6tiAS30.T9 brO9UKrwCegqHLGhI3McCgCIR2hzG1aQcaZJt46iWylreA4ThNRi354oU3QOeCCUhjLJI1CcEzCC h8Z.Y_5qSxXGZH6.0zKEiNnLGvLTcaOijtpQIZj6nq5WJ0DE7q5BfjIHR_gnyvcnZXaL6DwhT6UT MG_dq5QSTvq7NmPXGE3FG02MMspo- Received: from sonic.gate.mail.ne1.yahoo.com by sonic315.consmr.mail.gq1.yahoo.com with HTTP; Fri, 19 Jun 2020 16:52:54 +0000 Received: by smtp431.mail.gq1.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 64509bd6dd7a90f87cadd2f9e572d915; Fri, 19 Jun 2020 16:52:52 +0000 (UTC) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\)) Subject: Re: recent FreeBSD 13.0-CURRENT has fans screaming again on PowerMac quad From: Mark Millard In-Reply-To: <20200619111054.3a68bf06@titan.knownspace> Date: Fri, 19 Jun 2020 09:52:51 -0700 Cc: Dennis Clarke , freebsd-ppc Content-Transfer-Encoding: 7bit Message-Id: <6A1CD6F3-BC59-4017-8C35-443FB1FBCE9F@yahoo.com> References: <250e4677-c442-3b41-5796-6b79b07ac12c@blastwave.org> <1692AB48-2438-4B4B-82BB-F8BAEF04B459@freebsd.org> <20200619093447.469d669c@titan.knownspace> <56b7038d-d07d-9f38-dc4b-4149340089ed@blastwave.org> <20200619111054.3a68bf06@titan.knownspace> To: Justin Hibbits X-Mailer: Apple Mail (2.3608.80.23.2.2) X-Rspamd-Queue-Id: 49pPxh60dCz4Vbf X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.19 / 15.00]; FREEMAIL_FROM(0.00)[yahoo.com]; MV_CASE(0.50)[]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[yahoo.com:+]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; NEURAL_HAM_SHORT(-0.67)[-0.667]; FREEMAIL_TO(0.00)[gmail.com]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/21, country:US]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[yahoo.com:dkim]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-0.998]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_LONG(-1.02)[-1.023]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[98.137.65.30:from]; RWL_MAILSPIKE_POSSIBLE(0.00)[98.137.65.30:from]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Jun 2020 16:52:58 -0000 On 2020-Jun-19, at 09:10, Justin Hibbits wrote: > On Fri, 19 Jun 2020 15:57:43 +0000 > Dennis Clarke wrote: > >> . . . >> >> Now then, how do I get you the details you need about hardware? >> >> . . . > > Providing the output of 'ofwdump -ap' will suffice. Last I knew this command crashes modern, official powerpc64 FreeBSD on PowerMacs (without usefdt mode in use). Back when I could boot official 32-bit powerpc FreeBSD on the 64-bit hardware, that would let me run the ofwdump -ap command. (I've not tried 32-bit in some time but last I tried it did not work.) The crash was for a kernel DSI read trap and was tied to the dmap addressing changes mixed with executing openfirmware code when a page ended up not mapped and openfirmware tried to handle it. (This is from memory.) Details are listed in: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237590 The bugzilla comments report that the failure was during "OFIOCGET for the fairly large log property". If I remember right the example was a PowerMac11,2 Quad but the Powermac7,2 also failed. > The 'model' > property listed at the top will tell you what the type is. The rest > will help for figuring out what is needed. However, I know already > that since you have a Quad, it's a PowerMac11,2 so I don't need more > details. > > All I gleaned so far from the Linux source was that PowerMac11,2 and > PowerMac (G4 family) use GPIOs for timebase enable, while PowerMac7,3 > uses i2c twiddling, which looks more complicated. Given the age of > that hardware, I'm inclined to punt on that one, and get the > low-hanging fruit, which should satisfy most users. > FYI: I sometimes have access to a PowerMac7,2 (dual socket, 1 core each) and should be able to test there --if 7,2 is relevant. === Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)