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?