← Back to team overview

kernel-packages team mailing list archive

[Bug 1464833] Re: Unable to configure Firmware Assisted dump


** Package changed: ubuntu => makedumpfile (Ubuntu)

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

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to makedumpfile in Ubuntu.

  Unable to configure Firmware Assisted dump

Status in makedumpfile package in Ubuntu:
  Fix Released
Status in makedumpfile source package in Trusty:
  In Progress

Bug description:
  [SRU justification]
  This represent a hardware enablement SRU : Firmware assisted dumps (fadump) are not possible on LTS.

  The fadump mechanism cannot be used on Power systems running Trusty

  Backport fadump functionality from makedumpfile 1.5.8 present in Wily and onward.

  [Test Case]
  See comment #9 : The proposed SRU has been tested from a PPA on a Power VM.

  None expected from a functionality point of view as it is a new feature. Existing code paths are minimally modified.

  [Original description of the problem]

  ---Steps to Reproduce---
  1) Using latest daily ISO install 14.04.02 as a Power VM guest.
  2) Upgrade the kernel to 3.19 level (3.19.0-18-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-3.19.0-18-generic root=UUID=3ea23bcf-7269-432f-bacc-f82c6cdd774e ro splash quiet fadump=on crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7
  # cat /sys/kernel/fadump_enabled
  # cat /sys/kernel/fadump_registered

  # dmesg | grep -i Firmware
  [    0.000000] Reserved 5120MB of memory at 97279MB for firmware-assisted dump
  [    0.000000] firmware_features = 0x00000001c45ffc5f
  # cat /boot/config-3.19.0-18-generic | grep -i FA_DUMP

  Are there any user space fixes missing which prevents me from
  configuring firmware assisted dump ?

  == Comment: #4 - Hari Krishna Bathini <hbathini@xxxxxxxxxx> - 2015-06-12 05:28:24 ==
  This patch makes kdump-tools fadump aware so as to switch between
  kdump & fadump seemlessly based on the dump method enabled (fadump/kdump).


To manage notifications about this bug go to: