From: Steven Rostedt <rostedt@goodmis.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Jiri Kosina <jikos@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Matt Fleming <matt@codeblueprint.co.uk>,
Daniel Wagner <dwagner@suse.de>
Subject: Re: [PREEMPT_RT] 8250 IRQ lockup when flooding serial console (was Re: [ANNOUNCE] v5.4.28-rt19)
Date: Thu, 23 Apr 2020 14:34:37 -0400 [thread overview]
Message-ID: <20200423143437.3d82c3ea@gandalf.local.home> (raw)
In-Reply-To: <20200423090601.2439e64f@gandalf.local.home>
On Thu, 23 Apr 2020 09:06:01 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:
> BTW, I haven't released a new 5.4-rt because the default one is triggering
> a large latency somewhere, and makes my tests fail. I'm trying to dig into
> the cause when I get time.
Figured it out. Seems that starting with 5.4-rt, PREEMPT_RT now depends on
CONFIG_EXPERT, which I didn't have set, and PREEMPT_RT was disabled when
using my default config.
Had to add CONFIG_EXPERT to my default config to make it work again.
Starting the tests over....
-- Steve
next prev parent reply other threads:[~2020-04-23 18:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-30 14:47 [ANNOUNCE] v5.4.28-rt19 Sebastian Andrzej Siewior
2020-04-23 8:51 ` [PREEMPT_RT] 8250 IRQ lockup when flooding serial console (was Re: [ANNOUNCE] v5.4.28-rt19) Jiri Kosina
2020-04-23 9:12 ` Jiri Kosina
2020-04-23 10:45 ` Sebastian Andrzej Siewior
2020-04-23 13:06 ` Steven Rostedt
2020-04-23 18:34 ` Steven Rostedt [this message]
2020-04-23 18:47 ` Sebastian Andrzej Siewior
2020-04-23 16:07 ` Sebastian Andrzej Siewior
2020-04-23 16:20 ` [PATCH RT] Revert "rt: Improve the serial console PASS_LIMIT" Sebastian Andrzej Siewior
2020-04-23 16:21 ` Sebastian Andrzej Siewior
2020-04-23 19:48 ` [PREEMPT_RT] 8250 IRQ lockup when flooding serial console (was Re: [ANNOUNCE] v5.4.28-rt19) Jiri Kosina
2020-04-23 20:15 ` Steven Rostedt
2020-04-24 19:19 ` Sebastian Andrzej Siewior
2020-04-24 20:54 ` Jiri Kosina
2020-04-27 9:17 ` Sebastian Andrzej Siewior
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