Re: [PATCH 21/30] panic: Introduce the panic pre-reboot notifier list

Guilherme G. Piccoli
2022-05-17T16:45:51Z

On 17/05/2022 11:11, Petr Mladek wrote:
> [...]
>>> Then notifiers could make an informed choice on whether to deep dive to
>>> get all the possible details (when there is no kdump) or just skim the high
>>> level stuff (to maximize chance of getting a successful kdump).
>>>
>>> -Tony
>>
>> Good idea Tony! What if I wire a kexec_crash_loaded() in the notifier?
>
> I like this idea.
>
> One small problem is that kexec_crash_loaded() has valid result
> only under kexec_mutex. On the other hand, it should stay true
> once loaded so that the small race window should be innocent.
>
>> With that, are you/Petr/Dinh OK in moving it for the info list?
>
> Sounds good to me.
>
> Best Regards,
> Petr

Perfect, I'll do that for V2 then =)

Tony / Dinh - can I just *skip* this notifier *if kdump* is set or else
we run the code as-is? Does that make sense to you?

I'll postpone it to run almost in the end of info list (last position is
for panic_print).

Thanks,

Guilherme