Kexec failing. How to debug further?

[manty kuma]

Hi,
I am trying to use kexec to load new kernel but unable to load. How to
debug furhter?

I am working on a phone with platform x86_64.
I have followed the standard steps those are mentioned in kdump.txt in
linux documentation but the new kernel is not booting.

I donot have serial port provision.

Also, i followed the same steps on my Ubuntu PC and it works there.
Any idea if we need to perform extra steps for x86_64 platform or in
general for mobile devices?

BR,
Manty