linux-kernel - Re: [PATCH] lockdep: Show up to three levels for a deadlock scenario

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Message-ID: <20171219121124.79bca79b@gandalf.local.home>
Date:   Tue, 19 Dec 2017 12:11:24 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Dhaval Giani <dhaval.giani@...cle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] lockdep: Show up to three levels for a deadlock
 scenario

On Tue, 19 Dec 2017 18:07:16 +0100
Peter Zijlstra <peterz@...radead.org> wrote:

> On Tue, Dec 19, 2017 at 11:52:38AM -0500, Steven Rostedt wrote:
> > Then I suggest that you can either take my patch to improve the
> > visual or remove the visual completely, as nobody cares about it.  
> 
> Doesn't apply as is; but can you at least make it shut up if the chain
> is longer than you support?

I can add that.

> 
> It's really annoying if it shows the AB-BA graphics when you're staring
> at a 5-6 lock scenario.

I could also make it dynamic, to handle the entire chain. But it will
make it longer.

-- Steve