From owner-freebsd-xen@FreeBSD.ORG Mon Mar 7 05:38:03 2011 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx2.freebsd.org (mx2.freebsd.org [IPv6:2001:4f8:fff6::35]) by hub.freebsd.org (Postfix) with ESMTP id 02B5A106564A for ; Mon, 7 Mar 2011 05:38:03 +0000 (UTC) (envelope-from cperciva@freebsd.org) Received: from xps.daemonology.net (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx2.freebsd.org (Postfix) with SMTP id 492AE15133E for ; Mon, 7 Mar 2011 05:38:02 +0000 (UTC) Received: (qmail 1714 invoked from network); 7 Mar 2011 05:38:01 -0000 Received: from unknown (HELO xps.daemonology.net) (127.0.0.1) by localhost with SMTP; 7 Mar 2011 05:38:01 -0000 Message-ID: <4D746F39.5080202@freebsd.org> Date: Sun, 06 Mar 2011 21:38:01 -0800 From: Colin Percival User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.16) Gecko/20101220 Thunderbird/3.0.11 MIME-Version: 1.0 To: Dr Josef Karthauser References: In-Reply-To: X-Enigmail-Version: 1.0.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-xen@freebsd.org Subject: Re: does anyone have Xen running on an AMD system? X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Mar 2011 05:38:03 -0000 On 03/06/11 04:45, Dr Josef Karthauser wrote: > Hi Colin, > Did you every manage to find a fix for this 'panic: pmap_init: page table page is out > of range' panic when sensible amounts of memory are allocated to a FreeBSD PV XEN kernel? > I think you said that you were working on something in January. The bug I fixed back in January was a panic on AMD CPUs with amdc1e (Xen gets unhappy when you try to halt the CPU...). The 'page table page is out of range' bug was mentioned at the time but I didn't have a chance to track it down (and I can't test that on EC2 since t1.micro instances only have 600 MB of RAM and the larger instance types don't work with FreeBSD for other reasons). I'll try to make sure this gets fixed before 9.0-RELEASE (~3 months off?) -- if someone can give me SSH access to a box where I can launch instances which show this bug, it will probably get fixed sooner (debugging via email is a nuisance...). -- Colin Percival Security Officer, FreeBSD | freebsd.org | The power to serve Founder / author, Tarsnap | tarsnap.com | Online backups for the truly paranoid