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 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,49eb370bfd3baa90 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news4.google.com!news.glorb.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local01.nntp.dca.giganews.com!nntp.clear.net.nz!news.clear.net.nz.POSTED!not-for-mail NNTP-Posting-Date: Tue, 08 Mar 2005 21:39:37 -0600 From: Craig Carey Newsgroups: comp.lang.ada Subject: Re: Memory limits in Ada where Fortran has none Date: Wed, 09 Mar 2005 16:39:34 +1300 Message-ID: References: <1110070479.250902.220540@l41g2000cwc.googlegroups.com> X-Newsreader: Forte Agent 2.0/32.652 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Original-NNTP-Posting-Host: ip-210-185-6-112.internet.co.nz X-Original-Trace: 9 Mar 2005 16:16:09 +1300, ip-210-185-6-112.internet.co.nz Organization: "ICONZ Ltd." X-Original-NNTP-Posting-Host: news.nz.asiaonline.net X-Original-Trace: 9 Mar 2005 16:39:34 +1300, news.nz.asiaonline.net NNTP-Posting-Host: 203.97.37.6 X-Trace: sv3-cDE6A7XcXpJpQ9Lbf+L4o9YiunzF9s+m3qegvOTqtN5qUtrtw5lZY5sXgf+7S4QT2QkGRjmKOXYCRhx!BpoaXXAk83/TFpP7EfQK/6UwceYcYzj7ty6GmqHTmHCj9l3qJSXv31osYrMUSM0W761ngmfn3cR4!deMxFjY= X-Complaints-To: Complaints to abuse@clear.net.nz X-DMCA-Complaints-To: Complaints to abuse@clear.net.nz X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.32 Xref: g2news1.google.com comp.lang.ada:8906 Date: 2005-03-09T16:39:34+13:00 List-Id: On Tue, 08 Mar 2005 11:24:42 GMT, "Dr. Adrian Wrigley" wrote: >On Sun, 06 Mar 2005 19:05:21 -0500, Robert A Duff wrote: ... >I am very wary of a test like this because GNAT sometimes >silently accesses the wrong element of very large data, if I >remember correctly. A correctly written program can (and did!) >thus fail catastrophically. Large records in particular are >suspect (on GNAT 3.15p, x86). (I have no test case to hand ... It might be a bug in the memory paging code. What's the OS ?. The Internet does have reports on how Linux gets bytes wrong when copying files across a disk. Maybe the filesystem the paging is done to, is a possible cause. -- Craig