Messages in this thread | | | Subject | Re: rcu_sched stall while waiting in csd_lock_wait() | From | Pratyush Anand <> | Date | Thu, 3 Aug 2017 09:26:06 +0530 |
| |
Hi Peter,
On Wednesday 02 August 2017 01:44 PM, Peter Zijlstra wrote: > 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.
Thanks for the pointer. Tried, but it did not help.
-- Regards Pratyush
| |