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Date:      Wed, 26 Feb 2003 05:08:25 +1030
From:      Greg Lewis <glewis@eyesbeyond.com>
To:        Milo Hyson <milo@cyberlifelabs.com>
Cc:        FreeBSD Java Mailing List <freebsd-java@FreeBSD.ORG>
Subject:   Re: IBM JDK status
Message-ID:  <20030226050825.C51511@misty.eyesbeyond.com>
In-Reply-To: <3E5BB558.2070803@cyberlifelabs.com>; from milo@cyberlifelabs.com on Tue, Feb 25, 2003 at 10:26:32AM -0800
References:  <Pine.BSF.4.05.10302112055590.24757-100000@misery.sdf.com> <3E5BB558.2070803@cyberlifelabs.com>

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On Tue, Feb 25, 2003 at 10:26:32AM -0800, Milo Hyson wrote:
> 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.

Great work!  gcore(1) is your friend :).

-- 
Greg Lewis                          Email   : glewis@eyesbeyond.com
Eyes Beyond                         Web     : http://www.eyesbeyond.com
Information Technology              FreeBSD : glewis@FreeBSD.org


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