From mboxrd@z Thu Jan  1 00:00:00 1970
From: james.morse@arm.com (James Morse)
Date: Mon, 23 Oct 2017 10:33:03 +0100
Subject: kdump: need help with kexec -p
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To: linux-arm-kernel@lists.infradead.org
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Hi Prabhakar, Akashi,

On 23/10/17 06:37, Prabhakar Kushwaha wrote:
> After further analysis, it is figured out to be a data cache flush issue.   
> 
> After trying below patch(suggested by Takahiro). This problem looks to be resolved for now. 
> 
> ===
> commit 9b492cf58077
> Author: Xunlei Pang <xlpang@redhat.com>
> Date:   Mon May 23 16:24:10 2016 -0700
> 
>     kexec: introduce a protection mechanism for the crashkernel reserved memory
> ===

/me winces.

Yes, without the protection mechanism the code will still compile, and still
work, but be missing the kexec_segment_flush() calls.

This is the problem with backporting stuff. Glad you got it fixed!


Thanks,

James