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

From: Steven Rostedt
Date: Mon Apr 30 2018 - 18:00:23 EST

On Mon, 30 Apr 2018 17:01:04 +0000
Joel Fernandes <joelaf@xxxxxxxxxx> wrote:
Tried 4.17-rc3 and see it too. Could be difference in configs? Also, the
> environment is a Qemu system with single CPU 1GB memory. Attached is the
> config.
> I think when I had multiple CPUs it was harder to trigger it, but can't
> really remember now. There was a time when triggering it was quite
> intermittent.

Bah, I didn't have CONFIG_DEBUG_LOCKDEP enabled, and that is what does
the backtrace.

-- Steve