X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-1.4 required=5.0	tests=AWL,BAYES_40,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,T_TO_NO_BRKTS_FREEMAIL
X-Spam-Check-By: sourceware.org
Message-ID: <4E859D04.3040902@gmail.com>
Date: Fri, 30 Sep 2011 12:42:12 +0200
From: Marco Atzeri <marco DOT atzeri AT gmail DOT com>
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:6.0.2) Gecko/20110902 Thunderbird/6.0.2
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Re: STATUS_ACCESS_VIOLATION
References: <32557806 DOT post AT talk DOT nabble DOT com>
In-Reply-To: <32557806.post@talk.nabble.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-IsSubscribed: yes
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

On 9/30/2011 12:04 PM, Marc Girod wrote:
>
> Hello,
>
> I keep my installation up-to-date on a weekly basis, and never fail to
> rebaseall/peflagsall as many times as needed to be able to start emacs
> in an X session without fork errors. Then I do a perlrebase.
>
> However, I eventually get STATUS_ACCESS_VIOLATION errors, in
> various contexts, e.g. (last now) doing a dired.
> I have been keeping the *stackdump files produced, and even logging
> their contents for fear they would get overwritten.
> I note that the value of eip (instruction pointer register?) reported is
> often the same. Here are the data for the last event:
>
[cut]
>     2 [main] emacs 6660 child_copy: linked dll data write copy failed,
> 0x26B000..0x274C8C, done 0, windows pid 6692, Win32 error 487
>
>
> And I checked:
>
> ~>  net helpmsg 487
>
> Attempt to access invalid address.
>
>
> My understanding, from reading previous threads in the list, is that
> some Windows process performs DLL injection, which modifies the
> memory map of the emacs process, so that it doesn't match the
> expectation of 'ls' while being forked as part of executing 'dired'.
>
> Is there any way to identify this Windows process, or the exact DLL,
> so as to know in advance how to rebase the processes to avoid this
> conflict? Can I use the above data for that purpose?
> Or is it doomed?
> And is my understanding flawed?
>
> Thanks,
> Marc


Problem reports:       http://cygwin.com/problems.html

so at least we have an idea of your system


in addition, have you checked
http://cygwin.com/faq/faq.using.html#faq.using.bloda

Antivirus and driver are the most likely culprits.


Regards
Marco

--
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