From owner-freebsd-ppc@freebsd.org Sun Sep 11 19:04:16 2016 Return-Path: Delivered-To: freebsd-ppc@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 96E17BD64C0 for ; Sun, 11 Sep 2016 19:04:16 +0000 (UTC) (envelope-from kristof@swissmail.org) Received: from smtp.swissmail.org (smtpout.swissmail.org [212.25.22.149]) (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 534F4F4 for ; Sun, 11 Sep 2016 19:04:15 +0000 (UTC) (envelope-from kristof@swissmail.org) Received: from vm-mailout2.vm.swissmail.org (vm-mailout2.vm.swissmail.org [212.25.22.135]) by smtp.swissmail.org (Postfix) with ESMTPS id 2CA0680770; Sun, 11 Sep 2016 20:58:56 +0200 (CEST) Received: from vm-pemfos1.intra.swissmail.org (unknown [192.168.173.54]) by vm-mailout2.vm.swissmail.org (Postfix) with ESMTP id 20B119FBA5; Sun, 11 Sep 2016 21:04:13 +0200 (CEST) Received: from vm-pemfos1.intra.swissmail.org (localhost [127.0.0.1]) by localhost (Postfix-local-10025) with ESMTP id 11D564A002; Sun, 11 Sep 2016 21:04:13 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by localhost (PEmFoS/1619.3522.a1); Sun, 11 Sep 2016 21:04:12 +0200 (CEST) X-Pemfos-Policyd: accepted (FjHJ9W38rJqEZzTTULtaJHE1QiNtO0s4kEwHJn8EICktGSYgBl02c0cNYBYKEj8P) Subject: Re: PowerMac G5 hangs/crashes on boot: 10.2, 11.0-RCx To: Mark Millard References: <6ad00a2d-4213-18b8-7974-534aa3758837@swissmail.org> <0A9EB3C7-F430-4F82-9B09-632754BB82C8@dsl-only.net> <6B075CE8-2AF5-479C-8363-6F5F33A0B62F@dsl-only.net> Cc: Jukka Ukkonen , freebsd-ppc@freebsd.org From: Krzysztof Parzyszek Message-ID: <5fd3b681-1050-9602-b338-fe0dc5e10642@swissmail.org> Date: Sun, 11 Sep 2016 14:04:09 -0500 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <6B075CE8-2AF5-479C-8363-6F5F33A0B62F@dsl-only.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.99.2 at vm-mailout2 X-Virus-Status: Clean X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Sep 2016 19:04:16 -0000 On 9/10/2016 7:12 PM, Mark Millard wrote: > > Your report that you have some sort of failure after booting during the likes of buildkernel is new as far as I know. Sending the list (and/or a bugzilla report) about the failure mode and related information may be appropriate and help in the future. (May be I missed an already existing report.) I think the issues with hangs are related to the temperature sensors. I was getting console messages that the media temp sensor was reporting 120C! I realized that as I replaced the hard drive, I changed the position of the drive in a way that exposed the sensor to the wind from the fans (it used to be angled a bit). Following this line of thought, I stuck a piece of paper in front of the sensor and things seem to work. At least work better than before. I have ordered a replacement sensor from eBay, so hopefully that problem will go away. Regarding your "hack": it works perfectly! So far, my system (10.3 at the moment) has booted every single time, no exceptions, traps, unexpected conditions. This is too good to remain as a "hack". I have no experience debugging the kernel and I don't know ABI the OFW follows, but I wouldn't mind digging a bit deeper into it, if someone shared some pointers. This is all with powerpc64. I'll try checking if it helps with 11.0 next. -Krzysztof