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PR/45754 CVS commit: pkgsrc/sysutils/memtest86

The following reply was made to PR pkg/45754; it has been noted by GNATS.

From: "OBATA Akio" <>
Subject: PR/45754 CVS commit: pkgsrc/sysutils/memtest86
Date: Sun, 19 Feb 2012 11:14:33 +0000

 Module Name:   pkgsrc
 Committed By:  obache
 Date:          Sun Feb 19 11:14:33 UTC 2012
 Modified Files:
        pkgsrc/sysutils/memtest86: Makefile distinfo
 Removed Files:
        pkgsrc/sysutils/memtest86/patches: patch-aa
 Log Message:
 Update memtest86 to 4.0.
 Based on PR 45754 by Radoslaw Kujawa.
 Enhancements in v4.0 (28/Mar/2011)
 * Support for testing with multiple CPUs. All tests except for #11 (Bit Fade)
   have been multi-threaded. A maximum of 16 CPUs will be used for testing.
 * CPU detection has been completely re-written to use the brand ID string 
   than the cumbersome, difficult to maintain and often out of date CPUID family
   information. All new processors will now be correctly identified without
   requiring code support.
 * All code related to controller identification, PCI and DMI has been removed.
   This may be a controversial decision and was not made lightly. The following
   are justifications for the decision:
     1. Controller identification has nothing to do with actual testing of 
      the core purpose of Memtest86.
     2. This code needed to be updated with every new chipset. With the ever
        growing number of chipsets it is not possible to keep up with the 
        The result is that new chipsets were more often than not reported
        in-correctly. In the authors opinion incorrect information is worse
        than no information.
     3. Probing for chipset information carries the risk of making the program
     4. The amount of code involved with controller identification was quite
        large, making support more difficult.
   Removing this code also had the unfortunate effect of removing reporting of
   correctable ECC errors. The code to support ECC was hopelessly intertwined 
   controller identification code. A fresh, streamlined implementation of ECC
   reporting is planned for a future release.
 * A surprising number of conditions existed that potentially cause problems 
   testing more than 4 GB of memory. Most if not all of these conditions have
   been identified and corrected.
 * A number of cases were corrected where not all of memory was being tested. 
   most tests the last word of each test block was not tested. In addition an
   error in the paging code was fixed that omitted from testing the last 256
   bytes of each block above 2 GB.
 * The information display has been simplified and a number of details that were
   not relevant to testing were removed.
 * Memory speed measurement has been parallelized for more accurate reporting 
   multi channel memory controllers.
 * This is a major re-write of the Memtest86 with a large number of minor
   bug-fixes and substantial cleanup and re-organization of the code.
 To generate a diff of this commit:
 cvs rdiff -u -r1.22 -r1.23 pkgsrc/sysutils/memtest86/Makefile
 cvs rdiff -u -r1.7 -r1.8 pkgsrc/sysutils/memtest86/distinfo
 cvs rdiff -u -r1.3 -r0 pkgsrc/sysutils/memtest86/patches/patch-aa
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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