From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM
	autolearn=ham autolearn_force=no version=3.4.4
X-Google-Thread: 103376,5e062f5bcdb88fd8
X-Google-Attributes: gid103376,public
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!news3.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: "Alex R. Mosteo" <devnull@mailinator.com>
Newsgroups: comp.lang.ada
Subject: Re: gnat 3.15p/Windows and tasking bug
Date: Mon, 24 Jul 2006 16:12:54 +0200
Message-ID: <4ik2m3F45ofgU1@individual.net>
References: <ea2gl4$r6n$1@online.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7Bit
X-Trace: individual.net Rkej07yyShGBlDbVYYImYAbU8UPgvkAuTZxOavUsDzwqvRxeA=
User-Agent: KNode/0.10.2
Xref: g2news2.google.com comp.lang.ada:5897
Date: 2006-07-24T16:12:54+02:00
List-Id: <comp.lang.ada>

michael bode wrote:

> I (and Google) remember a discussion about a bug in gnat 3.15p for
> Windows regarding tasking and delay statements that delay much longer
> than they should sometimes. What I don't remember and also did not
> find through Google was a precise description and if there was a
> workaround or some success using gcc-gnat 3.4.x (3.4.5 is the current
> MinGW version I think).
> 
> To be precise I found references to TWO such bugs one of them was
> limited to rather old mainboards or chipsets. I'm searching for
> information on the other bug.

I keep a copy of my old patch for gnat 3.15p/win. You could try comparing
these files to the original ones to find the diffs, and also compare them
to the mingw ones. I think that 3.15p was still 2.x based, so maybe they're
too different.

Anyhow, the files are here:

https://svn.mosteo.com/public/adagio/gnatpatch/

I strongly suspect the only one with modifications is s-tasren.adb, the
others are simply there because they had to be recompiled because of
dependencies. However this is just a fuzzy recall.

What I can say is that when recompiling these files and linking them with my
program, the bug went away. I received two different patches, but can not
remember their origins. I kept the most recent one, the older one caused
some other bug.

To compile, gnatmake -u -a *.ad? and then include the objects for linking.
The other way is to recompile the entire gnat runtime with the patched
sources. I preferred the first way so I was sure that any stock unmodified
3.15p installation would serve.

Hope this helps.