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

Pratyush Anand panand at redhat.com
Fri Jul 29 10:17:35 PDT 2016


On 29/07/2016:10:08:27 AM, Geoff Levand wrote:
> Hi,
> 
> On Fri, 2016-07-29 at 19:26 +0300, Ruslan Bilovol wrote:
> 
> > 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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