From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: timeouts
Date: Thu, 26 Aug 2004 14:07:33 -0500
Date: 2004-08-26T14:07:33-05:00 [thread overview]
Message-ID: <8PKdnU4zIcsjqbPcRVn-rA@megapath.net> (raw)
In-Reply-To: 2p63roFgloq0U1@uni-berlin.de
"Jano" <notelacreas@porfavor.no> wrote in message
news:2p63roFgloq0U1@uni-berlin.de...
> Steve wrote:
> > What version of GNAT?
> > I vaguely recall a gnat bug having to do with time. Unfortunately I
can't
> > recall the particulars. Maybe someone else on the list will remember.
>
> I was bitten by it. It involves Gnat 3.15p on Windows. Delays can
> mis-delay for unknown periods of time, effectively suggesting that tasks
> are locked when they are not.
The problem I recall (it happened in Janus/Ada, too, because it's actually
caused by a patch in the OS for a hardware problem) is that
QueryPerformanceCounter leaps forward by large amounts. Depending on how
Ada.Calendar is written, that can have bizarre effects. I believe that Tom
Moran created a patch for GNAT's Ada.Calendar for that; I don't know if
3.15p has it, but if not, you should try applying it. (Even better is
getting a machine without the faulty chipset, but that's not always
practical!)
Randy.
next prev parent reply other threads:[~2004-08-26 19:07 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-18 23:46 timeouts Brian May
2004-08-19 1:03 ` timeouts Jeffrey Carter
2004-08-19 3:10 ` timeouts Brian May
2004-08-19 19:18 ` timeouts Jeffrey Carter
2004-08-22 4:25 ` timeouts Brian May
2004-08-22 11:00 ` timeouts Stephen Leake
2004-08-22 11:29 ` timeouts Brian May
2004-08-22 19:56 ` timeouts Jeffrey Carter
2004-08-27 10:22 ` timeouts Brian May
2004-08-27 10:31 ` Cygwin and gcc-ada 3.4.1 (was Re: timeouts) Jano
2004-09-13 15:05 ` Dr Steve Sangwine
2004-08-27 17:54 ` timeouts Jeffrey Carter
2004-08-28 0:24 ` timeouts Stephen Leake
2004-08-29 0:24 ` timeouts Brian May
2004-08-29 4:40 ` timeouts tmoran
2004-08-29 8:57 ` timeouts Brian May
2004-08-29 17:17 ` timeouts tmoran
2004-08-29 22:37 ` timeouts Brian May
2004-08-29 13:31 ` timeouts Stephen Leake
2004-08-29 22:32 ` timeouts Brian May
2004-08-30 1:06 ` timeouts Stephen Leake
2004-08-30 12:17 ` timeouts Jano
2004-08-19 3:40 ` timeouts Steve
2004-08-22 4:18 ` timeouts Brian May
2004-08-22 12:54 ` timeouts Jeff C,
2004-08-26 1:28 ` timeouts Brian May
2004-08-26 10:00 ` timeouts Pascal Obry
2004-08-26 11:34 ` timeouts Georg Bauhaus
2004-08-26 11:58 ` timeouts Jean-Marc Bourguet
2004-08-26 22:20 ` timeouts Brian May
2004-08-27 18:12 ` timeouts Pascal Obry
2004-08-26 12:30 ` timeouts Stephen Leake
2004-08-26 22:54 ` timeouts Brian May
2004-08-27 1:17 ` timeouts Stephen Leake
2004-08-27 1:31 ` timeouts tmoran
2004-08-27 8:03 ` timeouts Brian May
2004-08-26 13:34 ` timeouts Steve
2004-08-26 14:02 ` timeouts Georg Bauhaus
2004-08-26 23:03 ` SPARK Brian May
2004-08-27 10:11 ` SPARK Georg Bauhaus
2004-08-26 23:20 ` timeouts Brian May
2004-08-27 10:20 ` timeouts Georg Bauhaus
2004-08-26 12:38 ` timeouts Jano
2004-08-26 19:07 ` Randy Brukardt [this message]
2004-08-26 21:25 ` timeouts tmoran
2004-08-26 23:01 ` timeouts Brian May
2004-08-27 0:03 ` timeouts Björn Persson
2004-08-27 9:31 ` timeouts Jano
2004-08-26 22:59 ` timeouts Brian May
2004-08-27 9:58 ` timeouts Jano
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