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[Launchpad Bug Tracker <1746299@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package makedumpfile - 1:1.6.3-2~16.04.1

---------------
makedumpfile (1:1.6.3-2~16.04.1) xenial; urgency=medium

  * Backport latest makedumpfile to xenial. (LP: #1746299)
  * Revert to build-depending on dh-systemd, as xenial does not have
    debhelper >= 9.20160709.

 -- Thadeu Lima de Souza Cascardo <cascardo@xxxxxxxxxxxxx>  Mon, 21 May
2018 11:02:15 -0300

** Changed in: makedumpfile (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1746299

Title:
  update makedumpfile tool version to v1.6.3

Status in The Ubuntu-power-systems project:
  In Progress
Status in makedumpfile package in Ubuntu:
  Fix Released
Status in makedumpfile source package in Xenial:
  Fix Released
Status in makedumpfile source package in Artful:
  Fix Released
Status in makedumpfile source package in Bionic:
  Fix Released

Bug description:
  [Impact]
  New upstream kernel versions, as those in linux-hwe package, require a newer makedumpfile to be supported. Otherwise, all copies fallback to copying the entire memory.

  [Test case]
  kdump-tools has been installed, system rebooted, then crash trigerred and verified that a small dump file was present on /var/crash/. Tested on amd64 and ppc64le.

  [Regression potential]
  Many other bug fixes have been included in the latest version of the package. The changes are supposed to fix these bugs, and have been tested as well. However, as the total of changes is not trivial, there is impact of regression that has been minimized by the tests done. Regression potential of not supporting older kernels has been tested with the kernels shipped on xenial and artful as well.


  
  ====================================================================

  == Comment: #0 - Hari Krishna Bathini <hbathini@xxxxxxxxxx> - 2018-01-30 10:46:53 ==
  ---Problem Description---
  update makedumpfile to latest version v1.6.3 that officially supports
  up to kernel version 4.14.8. Since makedumpfile is inherently backward compatible,
  this would not break existing functionality..

  Contact Information = hbathini@xxxxxxxxxx

  ---uname output---
  na

  Machine Type = na

  ---Debugger---
  A debugger is not configured

  ---Steps to Reproduce---
   makedumpfile reports ""The kernel version is not supported" while generating vmcore
  Also, there is a possibility of bogus address translations in makedumpfile tool with
  missing upstream patches. Can't be so sure without an exhaustive testing. Instead,
  it would be a good idea to go with the version which officially supports the kernel
  version in question.

  Userspace tool common name: makedumpfile

  The userspace tool has the following bit modes: 64-bit

  Userspace rpm: makedumpfile

  Userspace tool obtained from project website:  na

  *Additional Instructions for hbathini@xxxxxxxxxx:
  -Attach ltrace and strace of userspace application.

  == Comment: #1 - Hari Krishna Bathini <hbathini@xxxxxxxxxx> - 2018-01-30 10:49:13 ==
  With kernel version updated to 4.13.0, please update makedumpfile tool
  version to 1.6.3 which officially supports up to kernel version 4.14.8 [1].

  Thanks
  Hari

  [1]
  http://lists.infradead.org/pipermail/kexec/2018-January/019853.html

  This needs to be tagged for both 16.04.4 & 18.04 releases

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