From owner-freebsd-java@FreeBSD.ORG Thu Jul 5 14:40:32 2007 Return-Path: X-Original-To: freebsd-java@freebsd.org Delivered-To: freebsd-java@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id CA28616A41F for ; Thu, 5 Jul 2007 14:40:32 +0000 (UTC) (envelope-from wvaughan@steelerubber.com) Received: from toaster.steelerubber.com (toaster.steelerubber.com [166.82.96.8]) by mx1.freebsd.org (Postfix) with ESMTP id 55FC913C44B for ; Thu, 5 Jul 2007 14:40:32 +0000 (UTC) (envelope-from wvaughan@steelerubber.com) Received: (qmail 68113 invoked by uid 89); 5 Jul 2007 14:40:30 -0000 Received: from unknown (HELO ?166.82.96.28?) (166.82.96.28) by toaster.steelerubber.com with SMTP; 5 Jul 2007 14:40:30 -0000 Message-ID: <468D02D7.8090503@steelerubber.com> Date: Thu, 05 Jul 2007 10:40:23 -0400 From: Walter Vaughan User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-java@freebsd.org References: <468CB840.6040304@hebbanollavogala.nl> In-Reply-To: <468CB840.6040304@hebbanollavogala.nl> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: crash of diablo-amd64 in production system X-BeenThere: freebsd-java@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting Java to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Jul 2007 14:40:32 -0000 Alumnivereniging Nederlands wrote: > I have had a crash of the diablo JVM on an amd64 production server. > The JVM is running 10 web apps in Tomcat. > The server has 4GB of memory and is mainly running Tomcat5.5.20 on > diablo-1.5.0-b01 and Apache2.2.3. I was seeing similar problems on a dual quad core box that also was running the above as well as postgreSQL until I took the memory from 4 Gig up to 8 Gig of memory (the boxes were special priced with only 4 gig of memory is why I tried it that way). Since moving it up it has been stable as a rock (or rather as the Ubuntu box sitting next to it) and no longer runs out of memory. I was seeing even worse problems on Ubunutu X86_64 at 4 Gig of memory so it's not an freeBSD issue. 4 Gig is a "Bad Thing" on Intel x86 motherboards because of all the cruft of the 386 address space layout.