From owner-freebsd-ppc@FreeBSD.ORG Tue Sep 16 14:11:07 2014 Return-Path: Delivered-To: freebsd-ppc@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id D23A4776 for ; Tue, 16 Sep 2014 14:11:07 +0000 (UTC) Received: from out21.biz.mail.alibaba.com (out21.biz.mail.alibaba.com [205.204.114.132]) by mx1.freebsd.org (Postfix) with ESMTP id 28A80356 for ; Tue, 16 Sep 2014 14:11:06 +0000 (UTC) Received: from WS-web by r46d02007.xy2.aliyun.com at Tue, 16 Sep 2014 22:04:28 +0800 Date: Tue, 16 Sep 2014 22:04:25 +0800 From: Sender: To: Message-ID: Subject: =?UTF-8?B?UHJvZmVzc2lvbmFsIE1hbnVmYWN0dXJlIExhcHRvcCBBQyBBZGFwdGVyICA=?= X-Priority: 3 X-Mailer: Alimail-Mailagent MIME-Version: 1.0 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.3325399|-1; FP=18437547478380499065|6|1|203|0|-1|-1|-1; HT=r41g03021; MF=sales03@laptoppartsupply.com; PH=DW; RN=50; RT=50; 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Tue, 16 Sep 2014 08:15:53 -0700 (PDT) From: Mark Millard Subject: PowerMac G5 boot hangups before Copyright notice: "Stopped at 0: illegal instruction 0" [10.1-BETA1 example] Message-Id: <1118046C-0FF7-49FC-82DA-DB9A7A310991@dsl-only.net> Date: Tue, 16 Sep 2014 08:15:52 -0700 To: freebsd-ppc@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) X-Mailer: Apple Mail (2.1878.6) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Sep 2014 15:23:22 -0000 Using 10.1-BETA1 I added "options DDB" and "options GDB" to powerpc64's = GENERIC64. (I also used WITH_DEBUG_FILES=3D, WITHOUT_CLANG=3D, and = WITH_DEBUG=3D in /etc/make.conf.) So buildworld, kernel was basically = just set up to have more of a debugging context around (including for = any ports builds). The result was new information about the PowerMac G5 boot hangups: The = screen is no longer blank when the G5 is hung up without there being a = Copyright notice yet. It says... > GDB: no debug ports present > KDB: debugger backends: DDB > KDB: current backend: DDB > [ thread pid -1 tid 1006665719 ] > Stopped at 0: illegal instruction 0 > db> (I had no ability to input at that point.) Normally the Copyright notice = would have displayed instead of "[...]" and what follows. (I do not = claim to have all the spacing, capitalization, and such correct above.) That text is constant from hang to hang when it hangs just before it = would normally output the Copyright notice: The numbers do not vary, = much less the other text. It has never failed until after the two KDB = messages are present. So far I've only tested one PowerMac G5, booting = over and over for a few hours. (I do not claim to be set up for remote kernel debugging. I just decided = to let GDB go along for the ride when I added DDB.) =3D=3D=3D Mark Millard markmi at dsl-only.net