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

[Peter Zijlstra]

On Thu, Dec 14, 2017 at 12:38:52PM -0500, Steven Rostedt wrote:
> 
> Currently, when lockdep detects a possible deadlock scenario that involves 3
> or more levels, it just shows the chain, and a CPU sequence order of the
> first and last part of the scenario, leaving out the middle level and this
> can take a bit of effort to understand. By adding a third level, it becomes
> easier to see where the deadlock is.

So is anybody actually using this? This (together with the callchain for
#0) is always the first thing of the lockdep output I throw away.