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From:   Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Date:   Sat, 7 Sep 2019 04:53:59 +0900
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     Petr Mladek <pmladek@suse.com>,
        Andrea Parri <andrea.parri@amarulasolutions.com>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Brendan Higgins <brendanhiggins@google.com>,
        John Ogness <john.ogness@linutronix.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v4 0/9] printk: new ringbuffer implementation
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On (09/06/19 16:01), Peter Zijlstra wrote:
> > 2. The simple approach works only with lockless consoles. We need
> >    something else for the rest at least for NMI. Simle offloading
> >    to a kthread has been blocked for years. People wanted the
> >    trylock-and-flush-immediately approach.
> 
> Have an irq_work to wake up a kthread that will print to shit consoles.

Do we need sched dependency? We can print a batch of pending
logbuf messages and queue another irw_work if there are more
pending messages, right?

	-ss