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McKenney" , Frederic Weisbecker , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Mathieu Desnoyers , Lai Jiangshan , Zqiang , rcu@vger.kernel.org Subject: Re: [PATCH printk v6 29/30] rcu: Mark emergency sections in rcu stalls Message-ID: References: <20240527063749.391035-1-john.ogness@linutronix.de> <20240527063749.391035-30-john.ogness@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240527063749.391035-30-john.ogness@linutronix.de> On Mon 2024-05-27 08:43:48, John Ogness wrote: > Mark emergency sections wherever multiple lines of > rcu stall information are generated. In an emergency > section the CPU will not perform console output for the > printk() calls. Instead, a flushing of the console > output is triggered when exiting the emergency section. > This allows the full message block to be stored as > quickly as possible in the ringbuffer. > > Signed-off-by: John Ogness Reviewed-by: Petr Mladek Best Regards, Petr