kexec on panic

[Petr Tesarik]

On Fri, 10 Feb 2017 10:14:02 +0200
Denys Fedoryshchenko <nuclearcat at nuclearcat.com> wrote:

> Hello,
> 
> After years of using kexec and recent unpleasant experience with modern 
> (supposed to be blazing fast to boot) hardware that need 5-10 minutes 
> just to pass POST tests,
> one question came up to me:
> Is it possible anyhow to execute regular (not special "panic" one to 
> capture crash data) kexec on panic to reduce reboot time?

No. But you can load a specially crafted panic initrd which kexec's
back to the production kernel.

HTH,
Petr T