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------- Comment From hbathini@xxxxxxxxxx 2015-07-23 18:30 EDT-------
(In reply to comment #7)
> Hi,
> Did you modify '/etc/default/kdump-tools' to have USE_KDUMP=1?
> That will update the grub entry to have a crashkernel entry. From there you
> can reboot and re-check status.

Hi Chris,

The following bug added fadump supported in 15.04
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1415562
It says fadump support is added in makedumpfile version 1:1.5.7-5.
While ubuntu 15.10 currently has makedumpfile version 1:1.5.8-3,
fadump support patch seems missing here.

>
> Do you have a normal use case on how to use fadump? This will help in
> reproducing this on this end.

This link can help with fadump usage scenario
https://wiki.ubuntu.com/ppc64el/Recommendations#Firmware_Assisted_Dump

Thanks
Hari

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https://bugs.launchpad.net/bugs/1475497

Title:
  Unable to configure Firmware Assisted dump

Status in kexec-tools package in Ubuntu:
  New
Status in linux package in Ubuntu:
  New

Bug description:
  ---Steps to Reproduce---
  1) Using latest daily ISO install ubuntu15.10 as a Power VM guest. 
  2) Upgrade the kernel to 4 level (4.0.0-4-generic)
  3) In order to use Firmware Assisted Dump feature update the kernel command with fadump=on.
  4) Reboot.

  Post reboot using kdump-config load command fails with following
  message :

  # kdump-config load
  Memory for crashkernel is not reserved
  Please reserve memory by passing"crashkernel=X@Y" parameter to kernel
  Then try to loading kdump kernel
   * failed to load kdump kernel

  
  # kdump-config status
  current state   : Not ready to kdump

  #cat /proc/cmdline
  BOOT_IMAGE=/boot/vmlinux-4.0.0-4-generic root=UUID=6298dfdc-e683-473d-a8bc-b3249731b356 ro splash quiet fadump=on fadump_reserve_mem=512M crashkernel=512M

  #cat /sys/kernel/fadump_enabled
  1

  #cat /sys/kernel/fadump_registered 
  0

  # dmesg | grep -i Firmware
  [    0.000000] Reserved 512MB of memory at 3583MB for firmware-assisted dump
  [    0.000000] firmware_features = 0x00000001c45ffc5f


  #cat /boot/config-4.0.0-4-generic | grep -i FA_DUMP
  CONFIG_FA_DUMP=y
   

  
  I think userspace tool is missing for fadump as kdump config file not aware about fadump

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