X-Recipient: archive-cygwin@delorie.com
X-SWARE-Spam-Status: No, hits=2.5 required=5.0 	tests=AWL,BAYES_00,BOTNET,SPF_PASS
X-Spam-Check-By: sourceware.org
Message-id: <4AAEF1C7.9090901@verizon.net>
Date: Mon, 14 Sep 2009 18:45:43 -0700
From: Jerry DeLisle <jvdelisle@verizon.net>
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.1)  Gecko/20090814 Fedora/3.0-2.6.b3.fc11 Thunderbird/3.0b3
MIME-version: 1.0
To: cygwin@cygwin.com
Subject: Re: Core dump on hello world.
References: <4AADCA4E.2030302@verizon.net> <4AAE0285.9040402@gmail.com>  <4AAE0658.3000300@gmail.com> <4AAE0736.7060403@gmail.com>
In-reply-to: <4AAE0736.7060403@gmail.com>
Content-type: text/plain; charset=UTF-8; format=flowed
Content-transfer-encoding: 7bit
X-IsSubscribed: yes
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe@cygwin.com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin@cygwin.com>
List-Help: <mailto:cygwin-help@cygwin.com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
Delivered-To: mailing list cygwin@cygwin.com

On 09/14/2009 02:04 AM, Dave Korn wrote:
> Dave Korn wrote:
>
>>    Nah, hang on, I'll give the psychic debugging a go.<places hand to
>> forehead, covering eyes, waves other hand out in front of me in a
>> mystical-looking way>   I'm getting something.... the spirits are talking... or
>> maybe it's just the beer...  and they tell me: The problem is that the CPUID
>> instruction in your virtual machine is returning some kind of bogus output
>> that's leading set_fpu() to believe the CPU supports SSE, but the emulation in
>> fact does not, and it blows up here:
>>
>>> 0x697826c4<set_fpu+164>:       stmxcsr -0x14(%ebp)
>
>    Also, is your CPU a VIA by any chance, maybe a C7?
>
No, its an AMD Phenom II.  However, your hints were correct.  I disabled 
the VirtualBox System::VT-x/AMD-V features and the problem goes away. 
What Crystal Balls you have!

:)

Jerry

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

