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Date: Thu, 17 Nov 2016 18:04:58 +0100
From: Borislav Petkov <bp@alien8.de>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>,
        lkml <linux-kernel@vger.kernel.org>
Subject: Re: lockdep splat during suspend
Message-ID: <20161117170458.5cz3wt762dvgauv5@pd.tnic>
References: <20161117124358.stl7jxepvuhaxv26@pd.tnic>
 <20161117162943.ul2gldjt6qhz35dz@linutronix.de>
 <alpine.DEB.2.20.1611171729320.3645@nanos>
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On Thu, Nov 17, 2016 at 05:31:55PM +0100, Thomas Gleixner wrote:
> --- a/kernel/printk/printk.c
> +++ b/kernel/printk/printk.c
> @@ -2194,8 +2194,10 @@ void resume_console(void)
>   */
>  static int console_cpu_notify(unsigned int cpu)
>  {
> -	console_lock();
> -	console_unlock();
> +	if (!cpuhp_tasks_frozen) {
> +		console_lock();
> +		console_unlock();
> +	}
>  	return 0;
>  }

Reported-and-tested-by: Borislav Petkov <bp@suse.de>

-- 
Regards/Gruss,
    Boris.

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