From owner-freebsd-hackers@FreeBSD.ORG  Fri Mar 13 19:40:08 2015
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id F1E681E7
 for <freebsd-hackers@freebsd.org>; Fri, 13 Mar 2015 19:40:08 +0000 (UTC)
Received: from mail-ie0-x229.google.com (mail-ie0-x229.google.com
 [IPv6:2607:f8b0:4001:c03::229])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id AA1C2AEB
 for <freebsd-hackers@freebsd.org>; Fri, 13 Mar 2015 19:40:08 +0000 (UTC)
Received: by iecvj10 with SMTP id vj10so118633252iec.0
 for <freebsd-hackers@freebsd.org>; Fri, 13 Mar 2015 12:40:08 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:in-reply-to:references:date:message-id:subject:from:to
 :cc:content-type;
 bh=Ax79z1MHti3igZP0IaiffU0v61YUi21isLeLvVqR7jg=;
 b=ELSf5MsPCVHYXSqMZhyv5A/87C1WPR3KSZbJYOh5Mq61yUdKYR/kjKikLHe5KBk/yU
 TgHRKSWOeCvBySAlIhInqrwW1I8odOzBp7mrj20AzAx7InNUSMb33Myoh9EEQ8bQjzw2
 9SsY6+5IHH56n+1MQ3xkPsjmqAOTX54K2zWumq1GMZheQIxopTkxN/jySsYNFLqQlGM4
 95rBfK47z/gU5yeaE2eNhfrm0Z/X6C4CcC+Rqzf04Nax30oht0wUvO6RgI1GV4NpCz0T
 5MS4L1v4Sc0V7gBozKK3vZODNZV8Osf/oT+HjVOhHSJKb9vKS2HBnaTPe+qnVfDijVmF
 4DYw==
MIME-Version: 1.0
X-Received: by 10.50.43.162 with SMTP id x2mr113493583igl.46.1426275602264;
 Fri, 13 Mar 2015 12:40:02 -0700 (PDT)
Received: by 10.107.156.75 with HTTP; Fri, 13 Mar 2015 12:40:02 -0700 (PDT)
In-Reply-To: <55032C1B.5030004@multiplay.co.uk>
References: <550046F7.1050205@fuckner.net>
 <CAJ-VmokruCyo3M5up9n+Afvkr7VFBtUftpdgc=52ES+Nt6=JZA@mail.gmail.com>
 <CAPQ4ffsd-SpsLTbGL8BdBsNHLx9HhVQ4Wh+95M98fCmT5idPAg@mail.gmail.com>
 <550093DD.5040603@freebsd.org> <55015D3B.6030605@fuckner.net>
 <5501DD57.7030305@freebsd.org>
 <CAJ-Vmom+Zy_6ZCcTA_h4LFL-wDdaCmbqAgN5shpOsBBgWJw1mg@mail.gmail.com>
 <5503234A.4060103@fuckner.net> <55032C1B.5030004@multiplay.co.uk>
Date: Fri, 13 Mar 2015 15:40:02 -0400
Message-ID: <CAFMmRNzmr0Z1vXYK5y2QLk3eyUqXyK8TELgh4KHZ+DQVDXWZAg@mail.gmail.com>
Subject: Re: Server with 3TB Crashing at boot
From: Ryan Stone <rysto32@gmail.com>
To: Steven Hartland <killing@multiplay.co.uk>
Content-Type: text/plain; charset=UTF-8
X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1
Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers/>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 13 Mar 2015 19:40:09 -0000

On Fri, Mar 13, 2015 at 2:27 PM, Steven Hartland <killing@multiplay.co.uk>
wrote:

> Looks like that's panicing when allocating the zfs dbuf hash table, which
> by my calculation should be requesting 8GB for a 4TB physmem?
>

Interesting observation.  Michael, can you try booting with this patch
applied?  There is a bug in the kernel when we attempt to malloc() more
than 4GB.

https://people.freebsd.org/~rstone/patches/vm_64bit_malloc.diff