From owner-freebsd-ppc@FreeBSD.ORG Sun Sep 28 10:14:07 2014 Return-Path: Delivered-To: freebsd-ppc@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 361745D0 for ; Sun, 28 Sep 2014 10:14:07 +0000 (UTC) Received: from asp.reflexion.net (outbound-242.asp.reflexion.net [69.84.129.242]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id D5041E4B for ; Sun, 28 Sep 2014 10:14:06 +0000 (UTC) Received: (qmail 11265 invoked from network); 28 Sep 2014 10:13:59 -0000 Received: from unknown (HELO mail-cs-03.app.dca.reflexion.local) (10.81.19.3) by 0 (rfx-qmail) with SMTP; 28 Sep 2014 10:13:59 -0000 Received: by mail-cs-03.app.dca.reflexion.local (Reflexion email security v7.30.7) with SMTP; Sun, 28 Sep 2014 06:13:59 -0400 (EDT) Received: (qmail 10288 invoked from network); 28 Sep 2014 10:13:59 -0000 Received: from unknown (HELO iron2.pdx.net) (69.64.224.71) by 0 (rfx-qmail) with (DHE-RSA-AES256-SHA encrypted) SMTP; 28 Sep 2014 10:13:59 -0000 X-No-Relay: not in my network Received: from [192.168.1.8] (c-98-246-178-138.hsd1.or.comcast.net [98.246.178.138]) by iron2.pdx.net (Postfix) with ESMTPSA id 39D781C4062 for ; Sun, 28 Sep 2014 03:13:57 -0700 (PDT) From: Mark Millard Subject: 10.1-BETA2 PowerMac G5 panic dump failure: "- oversized DMA transfer attempt 65536 > 32768" Message-Id: <0C5799BD-90B3-4BC2-9BC5-C8531401ED8D@dsl-only.net> Date: Sun, 28 Sep 2014 03:13:53 -0700 To: FreeBSD PowerPC ML 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: Sun, 28 Sep 2014 10:14:07 -0000 I induced a panic dump attempt well after booting but it reported: Dumping 606MB (160 chunks) Chunk 0: 574592 bytes ata2: failure - oversized DMA transfer attempt 65536 > 32768 ... So it would appear that by default I can not get dumps for panics, at = least not on the PowerMac G5 configurations. (I'd guess that the = PowerMac G4's would be similar.) Everything else has been working for = the SSD use (the only media in place at the time --or normally). Context: FreeBSD FBSDG5M1 10.1-BETA2 FreeBSD 10.1-BETA2 #22 r271944M: Sun Sep 28 = 00:29:03 PDT 2014 root@FBSDG5M1:/usr/obj/usr/src/sys/GENERIC64 = powerpc GENERIC64 with options DDB and GDB added. WITH_DEBUG_FILES=3D = WITHOUT_CLANG=3D WITH_DEBUG=3D in /etc/make.conf. Odd DDB hack (internal = automatic script definition) for boot time reporting of information to = expose what is going on for a PowerMac G5 boot crash that happens fairly = frequently --reporting despite no input working at that early stage. = Also added a call to report a kernel backtrace at during the first = OF_ after the mmu is configured, before the actual ofwcall (which may = crash). The panic here was long after booting and logging in and it is from my = using Control-option-esc to get into DDB interactively (for the first = time) and my experimenting there. I'm not worried about the specific = panic at this point. But that dumps will fail is not so good. (It would = have been my first kernel dump.) Also possibly odd is that the only media is an SSD listed as ada0 with = partitions/slices listed as various ada0s. Yet the dump failure = messages referred to ata2. There is no /dev/ata2 present. The swap = partition was on ada0s9 that it should have used for the dump. =3D=3D=3D Mark Millard markmi at dsl-only.net