From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: John Ogness <john.ogness@linutronix.de>
Cc: xu xin <xu.xin.sc@gmail.com>,
xu.xin16@zte.com.cn, linux-kernel@vger.kernel.org,
linux-rt-users@vger.kernel.org, liu.chun2@zte.com.cn,
rostedt@goodmis.org, si.hao@zte.com.cn, yang.yang29@zte.com.cn,
zhang.yunkai@zte.com.cn
Subject: Re: [PATCH 5.10-rt] printk: ignore that console preempted by irq/softirq
Date: Wed, 12 Jun 2024 16:33:35 +0200 [thread overview]
Message-ID: <20240612143335.1smVOgke@linutronix.de> (raw)
In-Reply-To: <87cyoxeqh4.fsf@jogness.linutronix.de>
On 2024-06-03 22:17:35 [+0206], John Ogness wrote:
> On 2024-05-28, Sebastian Andrzej Siewior <bigeasy@linutronix.de> wrote:
> > There is a `may_sleep` variable set earlier. Couldn't that be re-used?
>
> Since the printing thread cannot preempt the softirq context and since
> the printing threads are not started before @system_state is
> SYSTEM_RUNNING, using @may_sleep is OK.
will there be a repost?
> if (!may_sleep &&
> con->thread &&
> task_cpu(con->thread) == smp_processor_id()) {
> continue;
> }
>
> John Ogness
Sebastian
prev parent reply other threads:[~2024-06-12 14:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-23 15:55 [PATCH 5.10-rt] printk: ignore that console preempted by irq/softirq xu.xin16
2024-05-26 17:46 ` John Ogness
2024-05-27 9:24 ` Sebastian Andrzej Siewior
2024-05-28 6:40 ` xu xin
2024-05-28 15:29 ` Sebastian Andrzej Siewior
2024-06-03 20:11 ` John Ogness
2024-06-12 14:33 ` Sebastian Andrzej Siewior [this message]
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