linux-kernel - Re: [PATCH] printk: fix exclusive

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Message-ID: <20191223001801.GA121292@google.com>
Date:   Mon, 23 Dec 2019 09:18:01 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:     John Ogness <john.ogness@...utronix.de>
Cc:     Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] printk: fix exclusive_console replaying

On (19/12/19 12:59), John Ogness wrote:
> Commit f92b070f2dc8 ("printk: Do not miss new messages when replaying
> the log") introduced a new variable @exclusive_console_stop_seq to
> store when an exclusive console should stop printing. It should be
> set to the @console_seq value at registration. However, @console_seq
> is previously set to @syslog_seq so that the exclusive console knows
> where to begin. This results in the exclusive console immediately
> reactivating all the other consoles and thus repeating the messages
> for those consoles.
> 
> Set @console_seq after @exclusive_console_stop_seq has stored the
> current @console_seq value.
> 
> Fixes: f92b070f2dc8 ("printk: Do not miss new messages when replaying the log")
> Signed-off-by: John Ogness <john.ogness@...utronix.de>

Acked-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>

Thanks!

	-ss