linux-kernel - Re: [PATCH printk v4 25/27] panic: Mark emergency section in oops

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Date: Mon, 15 Apr 2024 15:22:37 +0200
From: Petr Mladek <pmladek@...e.com>
To: John Ogness <john.ogness@...utronix.de>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Peter Zijlstra (Intel)" <peterz@...radead.org>,
	Josh Poimboeuf <jpoimboe@...nel.org>,
	Uros Bizjak <ubizjak@...il.com>,
	Kefeng Wang <wangkefeng.wang@...wei.com>,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH printk v4 25/27] panic: Mark emergency section in oops

On Wed 2024-04-03 00:17:27, John Ogness wrote:
> Mark an emergency section beginning with oops_enter() until the
> end of oops_exit(). In this section, the CPU will not perform
> console output for the printk() calls. Instead, a flushing of the
> console output is triggered when exiting the emergency section.
> 
> The very end of oops_exit() performs a kmsg_dump(). This is not
> included in the emergency section because it is another
> flushing mechanism that should occur after the consoles have
> been triggered to flush.
> 
> Signed-off-by: John Ogness <john.ogness@...utronix.de>

Let's try it:

Reviewed-by: Petr Mladek <pmladek@...e.com>

Best Regards,
Petr