From: "Dr. Adrian Wrigley" <amtw@linuxchip.demon.co.uk.uk.uk>
Subject: Re: Large arrays (again), problem case for GNAT
Date: Thu, 14 Apr 2005 14:09:43 GMT
Date: 2005-04-14T14:09:43+00:00 [thread overview]
Message-ID: <pan.2005.04.14.14.09.18.977493@linuxchip.demon.co.uk.uk.uk> (raw)
In-Reply-To: mailman.34.1113487221.24457.comp.lang.ada@ada-france.org
On Thu, 14 Apr 2005 14:59:01 +0100, Marius Amado Alves wrote:
>
> On 14 Apr 2005, at 08:45, Duncan Sands wrote:
>
>> The reason for doing it is pragmatic: many programs allocate memory
>> that
>> they never use....
>
> This problem seems easy to solve then. Just allocate and immediately
> write some stuff to the start and end of the block.
You need to write something to *every* machine page to make sure
real memory is allocated. If there isn't enough memory, you
probably can't do anything about it (can you trap this at all?).
But at least it fails early, rather than at a random point much later.
--
Adrian
next prev parent reply other threads:[~2005-04-14 14:09 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-13 12:46 Large arrays (again), problem case for GNAT Dr. Adrian Wrigley
2005-04-13 13:10 ` Larry Kilgallen
2005-04-13 13:24 ` Alex R. Mosteo
2005-04-13 13:31 ` Marc A. Criley
2005-04-13 19:52 ` Jeffrey Carter
2005-04-13 19:54 ` Randy Brukardt
2005-04-13 22:01 ` (see below)
2005-04-14 0:16 ` Robert A Duff
2005-04-14 1:11 ` Alexander E. Kopilovich
2005-04-14 7:29 ` Dmitry A. Kazakov
2005-04-14 7:45 ` Duncan Sands
[not found] ` <1113464720.9829.20.camel@localhost.localdomain>
2005-04-14 13:59 ` Marius Amado Alves
2005-04-14 14:09 ` Dr. Adrian Wrigley [this message]
2005-04-14 14:40 ` (see below)
[not found] ` <389d1596e98f95f0fdddc40afc0647b7@netcabo.pt>
2005-04-14 14:14 ` Duncan Sands
2005-04-14 15:18 ` Robert A Duff
2005-04-14 15:24 ` Robert A Duff
2005-04-15 5:21 ` Randy Brukardt
2005-04-15 11:49 ` Dr. Adrian Wrigley
2005-04-15 13:21 ` Dmitry A. Kazakov
2005-04-15 14:31 ` Dr. Adrian Wrigley
2005-04-15 14:57 ` Dmitry A. Kazakov
2005-04-14 15:39 ` Dr. Adrian Wrigley
2005-04-14 15:48 ` Dmitry A. Kazakov
2005-04-14 21:19 ` Robert A Duff
2005-04-15 8:23 ` Dmitry A. Kazakov
2005-04-15 8:38 ` Duncan Sands
2005-04-15 9:16 ` Dmitry A. Kazakov
2005-04-15 18:30 ` Mark Lorenzen
2005-04-15 19:06 ` Robert A Duff
[not found] ` <iSSDSN2L04G1@VB1162.spb.edu>
2005-04-14 7:34 ` Duncan Sands
2005-04-13 22:35 ` Robert A Duff
2005-04-14 11:40 ` Dr. Adrian Wrigley
2005-04-14 10:44 ` Dr. Adrian Wrigley
2005-04-14 15:03 ` Robert A Duff
2005-04-14 16:46 ` Dmitry A. Kazakov
2005-04-14 18:30 ` Pascal Obry
2005-04-14 19:45 ` Dmitry A. Kazakov
-- strict thread matches above, loose matches on Subject: below --
2005-04-13 13:52 Duncan Sands
2005-04-13 14:20 ` Dr. Adrian Wrigley
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