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[Launchpad Bug Tracker <1659618@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package kexec-tools - 1:2.0.14-1ubuntu1

---------------
kexec-tools (1:2.0.14-1ubuntu1) zesty; urgency=medium

  * Merge from Debian unstable.  Remaining changes:
    - Default to not kexecing a kernel on boot in the automatically
      generated conffile
    - Don't call db_stop from the postinst.
    - Adjust INITCONFFILE to vmlinux if used
    - Use format-security.patch instead of const_string_warning.patch
    - Add maintainer script helper to handle removal of conffile
      /etc/default/grub.d/kexec-tools.cfg has been removed.
      Handle it properly
    - Add Breaks: statement toward kdump-tools
       Starting with kdump-tools 1:1.5.9-6, this package takes
       over the addition of crashkernel= parameter which has
       been removed from kexec-tools.
       Make sure that it is upgraded accordingly.
  * Debian merge adds arm64 support (LP: #1659618).

 -- dann frazier <dannf@xxxxxxxxxx>  Wed, 01 Feb 2017 12:48:15 -0700

** Changed in: kexec-tools (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1659618

Title:
  Enable ARM64 support in kexec-tools

Status in kexec-tools package in Ubuntu:
  Fix Released
Status in kexec-tools source package in Xenial:
  Confirmed
Status in kexec-tools source package in Yakkety:
  Confirmed
Status in kexec-tools package in Debian:
  Fix Released

Bug description:
  [IMPACT]
   * kexec-tools in Xenial (16.04) currently does not support ARM64
     architecture.
   * Backport support for ARM64 arch from upstream
     https://github.com/horms/kexec-tools
   * Majority of the patches are contained in kexec/arch/arm64/ except for
     one patch that impacts purgatory and common device tree routines.

  [TEST CASE]
   * I built kexec-tools for ARM64 and tested it on HW using the following
     testcase:
     $ sudo kexec -l /boot/vmlinuz-<version>-generic
       --initrd=/boot/initrd.img-<version>-generic
       --command-line="root=UUID=<uuid> ro vt.handoff=7"
     $ sudo kexec -e
   * I was able to kexec the new kernel successfully.
   * [ 6702.357899] kexec_core: Starting new kernel
     [    0.000000] Booting Linux on physical CPU 0x200
     [    0.000000] Linux version <version>-generic (buildd@bos01-arm64-008)
     (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) )
     [    0.000000] Boot CPU: AArch64 Processor [510f8000]

  [REGRESSION POTENTIAL]
   * Since patches are confined to arm[64] there is a low overall risk of
     regression.

  [OTHER INFO]
   * You can find a Xenial kexec-tools package built for AMD64, i386 and
     ARM64 in my PPA
     https://launchpad.net/~manjo/+archive/ubuntu/kexec-tools
   * This package is built using the Xenial source package for kexec-tools
     with ARM64 enablement patches applied.
   * Please pull the changes from my PPA package and integrate into Ubuntu
     Xenial kexec-tools after review.

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