On Wed, Aug 02, 2017 at 09:01:19AM +0530, Pratyush Anand wrote: > Hi, > > I am observing following rcu_sched stall while executing `perf record -a -- > sleep 1` with one of the arm64 platform. It looks like that stalled cpu was > waiting in csd_lock_wait() from where it never came out,and so the stall. > Any help/pointer for further debugging would be very helpful. Problem also > reproduced with 4.13.0-rc3.
I'm sitting on this patch: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?h=locking/core&id=15377ef4fe0c86eb7fa1099575b2e86357d99e42 please give that a spin.
