From owner-freebsd-mips@FreeBSD.ORG Wed Feb 10 13:17:08 2010 Return-Path: Delivered-To: freebsd-mips@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 222871065672 for ; Wed, 10 Feb 2010 13:17:08 +0000 (UTC) (envelope-from rrs@lakerest.net) Received: from lakerest.net (unknown [IPv6:2001:240:585:2:213:d4ff:fef3:2d8d]) by mx1.freebsd.org (Postfix) with ESMTP id AA6608FC13 for ; Wed, 10 Feb 2010 13:17:07 +0000 (UTC) Received: from [192.168.2.224] (pool-96-249-204-75.snfcca.dsl-w.verizon.net [96.249.204.75]) (authenticated bits=0) by lakerest.net (8.14.3/8.14.3) with ESMTP id o1ADH3Hr098204 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Wed, 10 Feb 2010 08:17:06 -0500 (EST) (envelope-from rrs@lakerest.net) Message-Id: <0EA6F9BC-9F31-42F9-8759-683A7B9A8721@lakerest.net> From: Randall Stewart To: "C. Jayachandran" In-Reply-To: <98a59be81002092358u1765b9efp640adc8a606a2963@mail.gmail.com> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v936) Date: Wed, 10 Feb 2010 05:16:58 -0800 References: <98a59be81002092343w74ef718l148f0f6d683285c4@mail.gmail.com> <98a59be81002092358u1765b9efp640adc8a606a2963@mail.gmail.com> X-Mailer: Apple Mail (2.936) Cc: freebsd-mips@freebsd.org Subject: Re: Fix for buildworld hang on XLR X-BeenThere: freebsd-mips@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to MIPS List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Feb 2010 13:17:08 -0000 JC: Ok I got the buildworld running... It is getting further.. hopefully if it will crash for me I can have a look and see if I can recognize whats going wrong with the above 512M issues... I am sure thats what it is ;-) Probably another left over from that hack I did way back to get pages over 512Meg used ;-) If I get to the pentry crash I will commit your change R On Feb 9, 2010, at 11:58 PM, C. Jayachandran wrote: > On Wed, Feb 10, 2010 at 1:23 PM, Neel Natu wrote: >> On Tue, Feb 9, 2010 at 11:43 PM, C. Jayachandran >> wrote: >>> Hi Randall, >>> >>> Looks like the buildworld hang was caused by a bug in the GMAC >>> driver. >>> In some cases an additional zero length descriptor was getting added >>> to the descriptor list which makes the GMAC go into underrun >>> condition. Can you see if this fix works for you? >>> >>> The patch is at http://sites.google.com/site/cjayachandran/files/rge.c.diff >>> >>> I still get a crash in pmap_enter during buildworld after quite a >>> long >>> time. It seems that de-referencing the pte in some cases crashes. >>> I'm >>> looking at it. >>> >> >> How much memory do you have installed on your system? Is any of that >> memory mapped above 512MB (physical)? > > It is a 4GB memory system, and there is memory over 512MB. I'm sill > new to this pmap subsystem, so will need some to understand this. > > JC. > ------------------------------ Randall Stewart 803-317-4952 (cell) 803-345-0391(direct)