linux-kernel - Re: [PATCHv2] printk: queue wake_up_klogd irq

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Message-ID: <20200410232141.GA497@jagdpanzerIV.localdomain>
Date:   Sat, 11 Apr 2020 08:21:41 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:     Simon Kirby <sim@...tway.ca>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org,
        Lech Perczak <l.perczak@...lintechnologies.com>,
        Theodore Ts'o <tytso@....edu>,
        John Ogness <john.ogness@...utronix.de>,
        Jann Horn <jannh@...gle.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: Re: [PATCHv2] printk: queue wake_up_klogd irq_work only if per-CPU
 areas are ready

On (20/04/10 12:07), Sergey Senozhatsky wrote:
> On (20/04/09 12:25), Simon Kirby wrote:
> > This causes "dmesg -w" or "cat /dev/kmsg" to not print new messages after
> > dumping the current ring. I hit this on v5.5.9, v5.5.15, v5.6.3, and
> > Linus HEAD. This prints no "hi":
>

[..]

> I'm trying to land this patch. Give me a moment, I'll come back to
> you shortly.

Applied. Commit ab6f762f0f53162d Linus' HEAD.

	-ss