From owner-freebsd-ppc@FreeBSD.ORG Sat Jun 19 23:01:34 2010 Return-Path: Delivered-To: freebsd-ppc@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0F4B71065673 for ; Sat, 19 Jun 2010 23:01:34 +0000 (UTC) (envelope-from tom.armistead@yahoo.com) Received: from web58104.mail.re3.yahoo.com (web58104.mail.re3.yahoo.com [68.142.236.127]) by mx1.freebsd.org (Postfix) with SMTP id A5CDF8FC18 for ; Sat, 19 Jun 2010 23:01:33 +0000 (UTC) Received: (qmail 73398 invoked by uid 60001); 19 Jun 2010 23:01:33 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1276988492; bh=sirb6jI9GGwVb1Nghg4seSlWMmeEAYO6BPPBiLztTNk=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding; b=VEjQUFRStQL12IajdXYF8NLUchaBtERwDChLRB5UilRUbgJczL/tf1/d4uRRjPBZM1MqGp4ndDbSEUU1Es8deNRx3nbhqkXWfu3mJdYQwgUhQ9NYQfwvPkdwi4YNm7gb0FFeF7bVnaBHVrj8QmZOAIpZMkqz+cxAIRf/LgHwZnc= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding; b=qKuPgu0d3HYZRkpHY9A7TWVrPm5k7MrJEEjapjCBj1EbsFegfa10167fRILQvGVFV8TAAJ8BvkANtAkovXErX47MRD2sJgkyTLn9nfLFEOzgmb/OnpDJeD4hwoqvmzL5dJu/X1C3gexv4D4SaTxGHIE10JopoQh7TJKC6RPRjmg=; Message-ID: <925747.73385.qm@web58104.mail.re3.yahoo.com> X-YMail-OSG: mDOIvUYVM1kUyFFqCZFETXUVrVXWQtmy3tLjS7sVIDolsHJ BX2zGsL7xd9mJzEKvH6ySCyzbGj_Ot.OIbDaH38D1wp4tmanKMK8Y14Mw1to xbs4bVXzoTfAjGwP1MFylgbRuKRd0Kf4jVXdKdNTaTIBhb.18ztOEBa7U5zq Kb1XlTNKUkkaOUES.mKw_vrqDTkrNUUeVAci83AHhGKjDoK6jnp2U1TosY1F fqUmC6qNhTTfpuOEvWYOAxazxvXEJy4g7PXRIBe4- Received: from [68.104.145.162] by web58104.mail.re3.yahoo.com via HTTP; Sat, 19 Jun 2010 16:01:32 PDT X-Mailer: YahooMailClassic/11.1.4 YahooMailWebService/0.8.103.269680 Date: Sat, 19 Jun 2010 16:01:32 -0700 (PDT) From: tom armistead To: Nathan Whitehorn MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-ppc@freebsd.org Subject: Re: IMAC G3 (700Mhz) 7.2 & 8.0 install fails with "fatal kernel trap:" X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 Jun 2010 23:01:34 -0000 =0AThanks -- I've now tried 8.1 RC1 and found it failed in the same way. = =0A=0AThere are no messages from the kernel prior to the fatal kernel trap = message.=0A=0AI did some investigation...=0A=0AThe failure messages display= ed with the 8.1 RC1 install attempt are:=0A=0Afatal kernel trap:=0A=A0 =A0= =A0=A0exception =3D 0x4 (instruction storage trap)=0A=A0 =A0=A0=A0virtual a= ddress =3D 0x59f3e8=0A=A0 =A0=A0=A0srr0 =3D 0x59f3e8=0A=A0 =A0=A0=A0srr1 = =3D 0x8003030=0A=A0 =A0=A0=A0lr =3D 0x5c27bc=0A=A0 =A0=A0=A0curthread =3D0x= 83fb50=0A=A0 =A0=A0=A0pid =3D 0, com =3D=0Apanic: instruction storage trap= =0AUptime: 1s=0A=0AI disassembled the kernel and it looks like the failing = address is in the subroutine moea_bootstrap().=0A=0A 59f3d8: 60 00 0= 0 00 nop=0A 59f3dc: 60 00 00 00 nop=0A 59f3e0: 7d 30 = 83 a6 mtibatu 0,r9=0A 59f3e4: 7c 11 83 a6 mtibatl 0,r0=0A 5= 9f3e8: 4c 00 01 2c isync <<<< failure address=0A 59f3ec= : 7d 38 83 a6 mtdbatu 0,r9=0A 59f3f0: 7c 19 83 a6 mtdb= atl 0,r0=0A=0A=0AAnd I found a previous problem report that looks like the = same issue:=0A=A0=A0=A0=0Ahttp://lists.freebsd.org/pipermail/freebsd-ppc/20= 08-March/002661.html=0A=0AThere was a fix for that issue but it looks like = it doesn't work for the CPU on the 700Mhz iMAC.=0A=0AI think to really solv= e this problem, you have to shut off translation, load the BATs and then re= -enable translation. When I patched in a segment of code to do just that= , the kernel booted and the installer started up. =0A=0A=0A