Re: [PATCH] softirq: reorder trace_softirqs_on to prevent lockdep splat

From: Joel Fernandes
Date: Wed Jun 20 2018 - 16:20:42 EST


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@xxxxxxxxxx> 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