On Wednesday 02 November 2016 10:19 AM, AKASHI Takahiro wrote:

    v27-specific note: In this version, the change made in v26 was reverted
    because I've got a comment that /reserved-memory DT property should
    not be used on UEFI/ACPI systems, even though it is workable under
    the current implementation. I've also confirmed that Rob doesn't argue
    any more against using "linux,usable-memory-range".
    So v27 is essentially the same as v25.

This patch series adds kdump support on arm64.

To load a crash-dump kernel to the systems, a series of patches to
kexec-tools[1] are also needed. Please use the latest one, v4 [2].

To examine vmcore (/proc/vmcore) on a crash-dump kernel, you can use
  - crash utility (v7.1.6 or later) [3]

Tested with mustang and seattle.
Tested-by: Pratyush Anand <redacted>