[PATCH v23 0/9] arm64: add kdump support

On 29/07/2016:10:08:27 AM, Geoff Levand wrote:

Hi,

On Fri, 2016-07-29 at 19:26 +0300, Ruslan Bilovol wrote:

quoted

Also for some reason in case of 'load and kexec the kernel' it
takes 1-2 minutes to start booting after I do kexec -e, need to
investigate it further.

You could try my patch ("purgatory: Change default sha256
optimization to -O2") in my master branch:

Yep, that did bring my 2 Min 30 sec to almost 20 sec, and then it came down to
fraction of second after D-cache enabling.

~Pratyush

  https://git.kernel.org/cgit/linux/kernel/git/geoff/kexec-tools.git/log/

Other have said it helped.

-Geoff

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