From owner-freebsd-java Tue Feb 25 10:26:35 2003 Delivered-To: freebsd-java@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7DC0837B405 for ; Tue, 25 Feb 2003 10:26:34 -0800 (PST) Received: from a.smtp-out.sonic.net (a.smtp-out.sonic.net [208.201.224.38]) by mx1.FreeBSD.org (Postfix) with SMTP id 504B443F93 for ; Tue, 25 Feb 2003 10:26:33 -0800 (PST) (envelope-from milo@cyberlifelabs.com) Received: (qmail 24644 invoked from network); 25 Feb 2003 18:26:32 -0000 Received: from turbo.sonic.net (208.201.224.26) by a.smtp-out.sonic.net with SMTP; 25 Feb 2003 18:26:32 -0000 Received: from cyberlifelabs.com (adsl-64-142-14-252.sonic.net [64.142.14.252]) by turbo.sonic.net (8.11.6/8.8.5) with ESMTP id h1PIQWF11933 for ; Tue, 25 Feb 2003 10:26:32 -0800 X-envelope-info: Message-ID: <3E5BB558.2070803@cyberlifelabs.com> Date: Tue, 25 Feb 2003 10:26:32 -0800 From: Milo Hyson User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.1) Gecko/20030120 X-Accept-Language: en-us, en MIME-Version: 1.0 To: FreeBSD Java Mailing List Subject: Re: IBM JDK status References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-freebsd-java@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Just an update on the broken IBM JDK issue. I've been working with the Linux emulation people, and we've narrowed the problem down to a bug somewhere in the kernel -- most likely in modify_ldt(). Here's what we've found: * modify_ldt() is returning an illegal value (the selector index) when called with func 0x11. * The main JVM thread is receiving a SIGSEGV immediately thereafter. * An endless stream of kernel trap 26 (segment-not-present) errors is recorded in /var/log/messages. * The exact same sequence of calls does not fail on Linux. Unfortunately, I have not been able to capture any core dumps since (on my system) the process hangs and does not crash. If anybody out there does have any dumps, please email them to me. -- Milo Hyson CyberLife Labs To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-java" in the body of the message