Re: [Fastboot] [RFC][PATCH] Add missing notifier before crashing

[Preben Traerup]

Vivek Goyal wrote:

> I think if we decide to implement something which allows other policies 
> to co-exist with crash_kexec() then it should be more generic then a
> single function pointer.
>
> Thanks
> Vivek
>
>  
A single function pointer function is suggested because it is the 
simpliest compromise
I can thing of which should be able to satisfy all.

The simpliest policy I can think of is
-flip a bit on _dedicated_ hardware (crash notifier)
-launch capture kernel (existing kexec)

Nothing prevents you from implementing multiple policies to be 
executed/selected among from
whatever is called by the single pointer function.


My key point is:
The complexity in my suggestion is a low as it can get, thus reliability of
kexec (hopefully) is unaffected
If crash notifiers is implemented by a complex "management system", I 
might loose
reliability of kexec because of something I basically do not need.

Or to put it in other words, I you need to implement anything complex 
for managing your policies,
you should add it yourself and you yourself is the only one being 
affected by increased complexibility.

./Preben
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