linux-kernel - Re: [PATCH V2] panic: Move panic

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Date:   Fri, 14 Jan 2022 09:32:58 -0300
From:   "Guilherme G. Piccoli" <gpiccoli@...lia.com>
To:     Petr Mladek <pmladek@...e.com>
Cc:     linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        kernel@...ccoli.net, senozhatsky@...omium.org, rostedt@...dmis.org,
        john.ogness@...utronix.de, feng.tang@...el.com,
        kexec@...ts.infradead.org, dyoung@...hat.com,
        keescook@...omium.org, anton@...msg.org, ccross@...roid.com,
        tony.luck@...el.com
Subject: Re: [PATCH V2] panic: Move panic_print before kmsg dumpers

On 14/01/2022 09:26, Petr Mladek wrote:
> [...]
> I see. OK, it makes sense to call it after the panic notifiers when
> they are used. It would be nice to mention the above in the commit
> message and explain why the 2nd call is there.
> 
> Just an idea. It might be better to move the 1st call below
> if (!_crash_kexec_post_notifiers). It would make it more
> clear that it is intended for this code path. I mean:
> 
> 	if (!_crash_kexec_post_notifiers) {
> 		/* ... */
> 		if (kexec_crash_loaded())
> 			panic_print_sys_info(false);
> 
> 		__crash_kexec(NULL);
> 	...
> 
> Best Regards,
> Petr

Perfect Petr, thanks again for the very good ideas! I'll work on V3 and
submit today.
Cheers,


Guilherme