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From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: "Guilherme G. Piccoli" <gpiccoli@igalia.com>
Cc: linux-kernel@vger.kernel.org, bhe@redhat.com, pmladek@suse.com,
	akpm@linux-foundation.org, anton@enomsg.org, ccross@android.com,
	dyoung@redhat.com, feng.tang@intel.com,
	john.ogness@linutronix.de, keescook@chromium.org,
	kernel@gpiccoli.net, kexec@lists.infradead.org,
	rostedt@goodmis.org, senozhatsky@chromium.org,
	tony.luck@intel.com, vgoyal@redhat.com
Subject: Re: [PATCH V6] panic: Move panic_print before kmsg dumpers
Date: Tue, 22 Feb 2022 10:45:29 +0900	[thread overview]
Message-ID: <YhRAOQbH15E7y9s8@google.com> (raw)
In-Reply-To: <20220214141308.841525-1-gpiccoli@igalia.com>

On (22/02/14 11:13), Guilherme G. Piccoli wrote:
> -static void panic_print_sys_info(void)
> +static void panic_print_sys_info(bool console_flush)
>  {
> -	if (panic_print & PANIC_PRINT_ALL_PRINTK_MSG)
> -		console_flush_on_panic(CONSOLE_REPLAY_ALL);
> +	if (console_flush) {
> +		if (panic_print & PANIC_PRINT_ALL_PRINTK_MSG)
> +			console_flush_on_panic(CONSOLE_REPLAY_ALL);
> +		return;
> +	}

Yeah, if Petr is fine with that then I'm OK. But at the same time,
we have `panic_print' which is a bit mask of what panic_print_sys_info()
should do. And now we also have a boolean `console_flush` flag that tells
panic_print_sys_info() to ignore some (one as of now) bits of `panic_print'.

So _maybe_ panic_print_sys_info() can just accept panic_print as
its parameter and then we can do something like this (as an example)

	panic_print_sys_info(panic_print & ~PANIC_PRINT_ALL_PRINTK_MSG);


>  	if (panic_print & PANIC_PRINT_ALL_CPU_BT)
>  		trigger_all_cpu_backtrace();
> @@ -286,6 +289,8 @@ void panic(const char *fmt, ...)
>  	 */
>  	atomic_notifier_call_chain(&panic_notifier_list, 0, buf);

[..]

> +	panic_print_sys_info(false);

Merely because `panic_print_sys_info(false);` doesn't tell much to a reader.
Like what is print sys info false?

Or did you already discuss this?

  parent reply	other threads:[~2022-02-22  1:45 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-14 14:13 [PATCH V6] panic: Move panic_print before kmsg dumpers Guilherme G. Piccoli
2022-02-15 16:14 ` Petr Mladek
2022-02-23 11:41   ` Sergey Senozhatsky
2022-02-23 12:30     ` Guilherme G. Piccoli
2022-02-22  1:45 ` Sergey Senozhatsky [this message]
2022-02-22 14:08   ` Guilherme G. Piccoli
2022-02-23  1:35     ` Sergey Senozhatsky
2022-02-22  2:06 ` Sergey Senozhatsky
2022-02-22  2:10   ` Sergey Senozhatsky
2022-02-22 14:10   ` Guilherme G. Piccoli
2022-02-23  1:27     ` Sergey Senozhatsky
2022-02-23 13:15       ` Guilherme G. Piccoli
2022-02-24  2:52         ` Sergey Senozhatsky
2022-02-24 14:33       ` Petr Mladek
2022-02-24 14:45         ` Guilherme G. Piccoli
2022-02-25  5:18         ` Sergey Senozhatsky
2022-02-25  5:23           ` Sergey Senozhatsky
2022-02-25 12:16           ` Petr Mladek
2022-02-26  2:23             ` Sergey Senozhatsky
2022-02-28 12:33               ` Guilherme G. Piccoli

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