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From: Peter Zijlstra <peterz@infradead.org>
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>, Petr Mladek <pmladek@suse.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	linux-pm@vger.kernel.org, John Stultz <john.stultz@linaro.org>
Subject: Re: Regression in next with use printk_safe buffers in printk
Date: Tue, 14 Feb 2017 19:29:56 +0100	[thread overview]
Message-ID: <20170214182956.GS6500@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20170214165645.GB10321@tigerII.localdomain>

On Wed, Feb 15, 2017 at 01:56:45AM +0900, Sergey Senozhatsky wrote:
> that crossed my mind, but I kinda assumed that we do printk() from
> under tk_core using sched fair, and rt_runtime_lock is from sched rt.

That's all true; lockdep doesn't care :-) All it knows is that at some
point those locks nest.

  parent reply	other threads:[~2017-02-14 18:30 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-13 18:59 Regression in next with use printk_safe buffers in printk Tony Lindgren
2017-02-14 16:01 ` Sergey Senozhatsky
2017-02-14 16:18   ` Peter Zijlstra
2017-02-14 16:56     ` Sergey Senozhatsky
2017-02-14 17:03       ` Tony Lindgren
2017-02-15  4:44         ` Sergey Senozhatsky
2017-02-14 18:29       ` Peter Zijlstra [this message]
2017-02-15  4:49         ` Sergey Senozhatsky
2017-02-14 16:54   ` Tony Lindgren
2017-02-15 18:01   ` Tony Lindgren
2017-02-16  1:31     ` Sergey Senozhatsky
2017-02-16  4:03       ` Tony Lindgren
2017-02-16  4:25         ` Sergey Senozhatsky
2017-02-16 15:10           ` Tony Lindgren
2017-02-16 16:31             ` Sergey Senozhatsky
2017-02-16 19:13               ` Tony Lindgren

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