Re: [PATCH v7 1/6] softirq: reorder trace_softirqs_on to prevent lockdep splat

2018-05-15 Thread Joel Fernandes
This patch submission got completely screwed up, sorry, please ignore. I'll repost soon. There's something messed up with my SMTP server too. On Tue, May 15, 2018 at 03:45:54PM -0700, Joel Fernandes (Google) wrote: > I'm able to reproduce a lockdep splat with config options: > CONFIG_PROVE_LOCKING

[PATCH v7 1/6] softirq: reorder trace_softirqs_on to prevent lockdep splat

2018-05-15 Thread Joel Fernandes (Google)
I'm able to reproduce a lockdep splat with config options: CONFIG_PROVE_LOCKING=y, CONFIG_DEBUG_LOCK_ALLOC=y and CONFIG_PREEMPTIRQ_EVENTS=y $ echo 1 > /d/tracing/events/preemptirq/preempt_enable/enable --- kernel/softirq.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/k