X-Spam-Check-By: sourceware.org
Message-ID: <43F4D75C.8010201@equate.dyndns.org>
Date: Thu, 16 Feb 2006 19:49:48 +0000
From: Chris Taylor <chris AT equate DOT dyndns DOT org>
Reply-To: cygwin AT cygwin DOT com
User-Agent: Debian Thunderbird 1.0.7 (X11/20051017)
MIME-Version: 1.0
To: "Dill, Jens (END-CHI)" <jens DOT dill AT endinfosys DOT com>
CC: cygwin AT cygwin DOT com
Subject: Re: cygheap base mismatch detected
References: <B7632F7D9BD7B04B94B475272FAD5308057050F7 AT elschivexch01 DOT elsevier DOT com>
In-Reply-To: <B7632F7D9BD7B04B94B475272FAD5308057050F7@elschivexch01.elsevier.com>
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit
X-IsSubscribed: yes
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
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

Dill, Jens (END-CHI) wrote:
> Dave Korn writes:
> 
>>>Unfortunately for me, (e) is impractical.  It's not clear whether
>>>it is my source code or CygWin's that I need to fix, 
>>
>> Have you actually *tried* this application of yours under Cygwin and
>>discovered that it indeed *is* one of the rare ones that actually runs
> 
> into
> 
>>this problem, or are you getting your knickers in a twist over some
> 
> entirely
> 
>>theoretical issue that may just as likely never happen?
>>
>>
>>>My project time frame doesn't allow for that.   If I read Dave Korn's
>>>posting correctly (along with the others who talk about adjusting the
>>>sizes of Fortran arrays to fix the problem)
>>
>> *Why* are you relying on information that is 12 to 18 months out of date?
>>There's been quite a few check-ins to the cygwin cvs in that period, and
> 
> in
> 
>>case you haven't noticed, we haven't had anyone here running into that
> 
> problem
> 
>>recently, and some of the fortran people said that one of the fixes
> 
> Corinna
> 
>>made _ages_ ago now had solved the problem in their experience, so perhaps
> 
> you
> 
>>should stop hoping to divine the truth from a priori first principles and
>>outdated mailing-list-posts, and get a bit _empirical_ about it?
> 
> 
> Of course I have *tried* the application under CygWin and it does
> indeed actually run into the problem.  Of course I have searched
> the list for more recent information about the problem.  Of course
> I am using a new installation of the latest stable CygWin and
> a machine with sufficient memory and horsepower.
> 
> Not every new poster to the list is a newbie to posting.
> 
> I have done some experimentation.  The "maxmem" program 
> outlined in http://cygwin.com/cygwin-ug-net/setup-maxmem.html
> shows me that I have 1.5 Gb of memory available to allocate.
> 
> I can run tests in which I allocate static arrays of increasingly
> large size, and I hit the cygheap base problem *exactly* when I
> try to make an array bigger than 1.5 Gb.
> 
> I can run tests in which I set the --heap option for the linker
> to increasingly large sizes, and I hit the cygheap base problem
> *exactly* when I try to make the heap size larger than 1.5 Gb.
> 
> I can run tests in which I set the --stack option for the linker
> to increasingly large sizes, and I get a "thread handle not set"
> error during execution the minute my stack size exceeds 0.5 Gb.
> Yes, that's 0.5.  I never go to the full 1.5 Gb.
> 
> I did not tinker with --stack or --heap when building my
> executable.  I am positive it has no static arrays larger than
> a few tens of thousands of bytes.  Certainly nowhere near 1.5 Gb.
> The size of the .exe file itself is just over 80 Mb.
> 
> So what is causing the problem?  
> 
>                                   -- Jens Dill
>                                      Endeavor Information Systems
> 
> 

You know, it wouldn't exactly be rocket science to try 1.5.19-4 ...
Dave mentioned that there have been many improvements in the last year 
on this issue - 1.5.18-1 is rather dated now.

It can't hurt to try now, can it?

-- 

Spinning complacently in the darkness, covered and blinded by a blanket
of little lives, false security has lulled the madness of this world
into a slumber. Wake up! An eye is upon you, staring straight down and
keenly through, seeing all that you are and everything that you will
never be. Yes, an eye is upon you, an eye ready to blink. So face
forward, with arms wide open and mind reeling. Your future has
arrived... Are you ready to go?

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