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From: Joel Fernandes <joel@joelfernandes.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zilstra <peterz@infradead.org>,
	Joel Fernandes <joelaf@google.com>,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Tom Zanussi <tom.zanussi@linux.intel.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Thomas Glexiner <tglx@linutronix.de>,
	Boqun Feng <boqun.feng@gmail.com>,
	Paul McKenney <paulmck@linux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Fenguang Wu <fengguang.wu@intel.com>,
	Baohong Liu <baohong.liu@intel.com>,
	Vedang Patel <vedang.patel@intel.com>,
	kernel-team@android.com
Subject: Re: [PATCH] softirq: reorder trace_softirqs_on to prevent lockdep splat
Date: Wed, 20 Jun 2018 13:20:35 -0700	[thread overview]
Message-ID: <20180620202035.GA122295@joelaf.mtv.corp.google.com> (raw)
In-Reply-To: <20180620160513.0453247e@gandalf.local.home>

On Wed, Jun 20, 2018 at 04:05:13PM -0400, Steven Rostedt wrote:
> 
> Peter, can you ack this.
> 
> On Thu, 26 Apr 2018 21:11:00 -0700
> Joel Fernandes <joelaf@google.com> wrote:
> 
> > I'm able to reproduce a lockdep splat when CONFIG_PROVE_LOCKING=y and
> > CONFIG_PREEMPTIRQ_EVENTS=y.
> > 
> > $ echo 1 > /d/tracing/events/preemptirq/preempt_enable/enable
> > ---
> 
> BTW, the "---" here causes git to ignore everything underneath it :-/

Oh ok, I actually already fixed the '---' issue in the change log since then:

Here's a recent posting of the patch: https://patchwork.kernel.org/patch/10453483/
(patch is the same, only the commit log is fixed to remove '---').

thanks,

- Joel
 

  reply	other threads:[~2018-06-20 20:20 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-27  4:11 Joel Fernandes
2018-04-30 16:38 ` Steven Rostedt
2018-04-30 16:52   ` Joel Fernandes
2018-04-30 17:01     ` Joel Fernandes
2018-04-30 22:00       ` Steven Rostedt
2018-05-01 13:49 ` Steven Rostedt
2018-06-20 20:05 ` Steven Rostedt
2018-06-20 20:20   ` Joel Fernandes [this message]
2018-05-02  1:44 Joel Fernandes
2018-05-07 18:21 ` Steven Rostedt
2018-06-01  4:52   ` Joel Fernandes
2018-06-02 17:14     ` Steven Rostedt

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