Re: [PATCH v2 4/6] locking/lockdep: Reuse freed chain_hlocks entries

Peter Zijlstra
2020-01-13T15:59:41Z

On Mon, Dec 16, 2019 at 10:15:15AM -0500, Waiman Long wrote:
> An internal nfsd test that ran for more than an hour could cause the
> following message to be displayed.
>
> [ 4318.443670] BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!

I'm guessing the pertinent detail you forget to mention here is that
that test re-loads the nfs modules lots of times?