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To:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject:	Re: CYGWIN + windos10 + eclipse clp prolog
Thread-Topic:	CYGWIN + windos10 + eclipse clp prolog
Thread-Index:	AQHXg4ZfnG26FxVUZU2qjsD7s0LaVKtZkmWAgABG3DiAAq4fsQ==
Date:	Sat, 31 Jul 2021 04:55:56 +0000
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From:	Manu goswami via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Manu goswami <manugoswami AT hotmail DOT com>
Sender:	"Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id 16V4uaPE026675

Hi Mr Brian,

Yes, you were right. The problem was upstream in Eclipse Prolog Source code. Has been resolved now. You may consider the issue closed.

Only one query. Cygwin is a good idea and works well.  But is it weaker in GUI and multithreaded as compared to msys2? Kindly advise

Warm regards,

Manu

Get Outlook for iOS<https://aka.ms/o0ukef>
________________________________
From: Manu goswami <manugoswami AT hotmail DOT com>
Sent: Thursday, July 29, 2021 5:29:58 PM
To: cygwin AT cygwin DOT com <cygwin AT cygwin DOT com>
Subject: Re: CYGWIN + windos10 + eclipse clp prolog

Hi Brian,

Thanks for the reply.

Eclipse clp is a version of open source prolog and had been running successfully on my computer for some months.

There has been no change in source code.

What new I did was to install msys2 and call a particular Cygwin compiled exe from msys2. The called Cygwin compiled  .exe did run from msys2 but most probably crashed Cygwin causing segmentation fault ever since. Surprisingly the called Cygwin compiled .exe runs successfully but eclipse clp prolog .exe fails.

Should I remove msys2 ? as I have reinstalled Cygwin multiple times ever since this error occurs.


Warm regards,

Manu

Get Outlook for iOS<https://aka.ms/o0ukef>
________________________________
From: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
Sent: Thursday, July 29, 2021 1:08 PM
To: cygwin AT cygwin DOT com
Cc: Manu goswami
Subject: Re: CYGWIN + windos10 + eclipse clp prolog

On 2021-07-28 02:03, Manu goswami via Cygwin wrote:
> I have previously build eclipse clp prolog several times in CYGWIN
> but suddenly it has started to show ‘SEGMENTATION FAULT’ even after
> fully reinstalling CYGWIN and removing (manually deleting) old
> Cygwin.  No error is reported at build time and .exe is successfully
> generated but on execution of .exe file after build shows ‘
> SEGMENTATION FAULT’. Kindly support in resolving most urgently.

If you want to see replies to your questions, subscribe to the mailing
list, or view the replies on one of the many web based message archives
of the mailing list, including that at cygwin.com.

Report upstream to wherever you got the sources for whatever "eclipse
clp prolog" is - in whatever language(s) they use - web links to
projects and sources are more informative than garbled buzzwords.

SIGSEGV is a symptom of a programming error - out of bounds access -
caused by following the wrong pointer to an invalid location, using a
NULL pointer, array or buffer index incorrect, use after free, incorrect
object size or indirection, just to suggest some of the most frequent
and common causes.

If you have made your own local and/or recent changes to the sources,
they are invariably the likely cause of the issue, so recheck any recent
local work very carefully.

The Cygwin project provides packages for execution and development but,
as Cygwin is an all volunteer effort, with limited personnel each with
limited time, so all projects built using those packages are the
responsibility of those projects downstream of Cygwin, otherwise we
would not have any time to maintain and expand the packages supported.

--
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.
[Data in binary units and prefixes, physical quantities in SI.]

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