[Bug 1087157] [NEW] memtest86+ from Ubuntu live CD fails memory, same program from memtest.org passes memory

[DAP]

Public bug reported:

I have two computers, one with two sets of memory sticks.
On both computers the memtest86+ version 4.20 when run from the ubuntu 12.10 install CD fails all memory above 129MB on test 7. Reported read back data make it appear that test 7 did not overwrite data from previous test.
I downloaded memtest86+ version 4.2 as an ISO from memtest.org This version runs through all tests without errors.
I also downloaded memtest86+ 5.00b1. This version also passes all memory on both computers.

This bug cost me $50 when I bought new memory thinking the memory on one
of my systems was bad.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: memtest86+ 4.20-1.1ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
Uname: Linux 3.5.0-19-generic x86_64
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Wed Dec  5 23:54:49 2012
InstallationDate: Installed on 2011-05-22 (563 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MarkForUpload: True
SourcePackage: memtest86+
UpgradeStatus: Upgraded to quantal on 2012-10-21 (45 days ago)

** Affects: memtest86+ (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug quantal

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https://bugs.launchpad.net/bugs/1087157

Title:
  memtest86+ from Ubuntu live CD fails memory, same program from
  memtest.org passes memory

Status in “memtest86+” package in Ubuntu:
  New

Bug description:
  I have two computers, one with two sets of memory sticks.
  On both computers the memtest86+ version 4.20 when run from the ubuntu 12.10 install CD fails all memory above 129MB on test 7. Reported read back data make it appear that test 7 did not overwrite data from previous test.
  I downloaded memtest86+ version 4.2 as an ISO from memtest.org This version runs through all tests without errors.
  I also downloaded memtest86+ 5.00b1. This version also passes all memory on both computers.

  This bug cost me $50 when I bought new memory thinking the memory on
  one of my systems was bad.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: memtest86+ 4.20-1.1ubuntu2
  ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
  Uname: Linux 3.5.0-19-generic x86_64
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: amd64
  Date: Wed Dec  5 23:54:49 2012
  InstallationDate: Installed on 2011-05-22 (563 days ago)
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  MarkForUpload: True
  SourcePackage: memtest86+
  UpgradeStatus: Upgraded to quantal on 2012-10-21 (45 days ago)

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