On Mon, Jun 28, 2021 at 08:37:46AM -0700, Paul E. McKenney wrote: > Hello, Yixian Liu, > > The following -next commit results in a lockdep splat: > > 591f762b2750 ("RDMA/hns: Remove the condition of light load for posting DWQE") > > The repeat-by is as follows: > > tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --trust-make --duration 1 --configs TASKS01 > > The resulting splat is as shown below. This appears to have been either > fixed or obscured by a later commit, but it does affect bisectability. > Which I found out about the hard way. ;-) I'm confused, the hns driver is causing this, and you are able to test with the hns hardware??? Jason