linux-kernel - Re: [PATCH 2/2] reboot: flush printk buffers before final shutdown

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Message-ID: <878r7ibz5q.fsf@jogness.linutronix.de>
Date:   Tue, 31 Oct 2023 16:22:17 +0106
From:   John Ogness <john.ogness@...utronix.de>
To:     Martin Hundebøll <martin@...nix.com>
Cc:     Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] reboot: flush printk buffers before final shutdown

On 2023-10-31, Martin Hundebøll <martin@...nix.com> wrote:
>> printk() tries to print directly from the calling context. Are you
>> experiencing problems where you do not see the restarting message?
>
> Yes, but only with rt-patches. Sorry I forgot to mention that in the
> commit message. I considered sending the patches to the "rt-tree", but
> figured they don't need more patches to maintain, when the same
> changes could live in mainline just as well.

Thanks for clarifying. These patches really are only appropriate for the
rt-tree.

John Ogness