Hi Leon, Le mer. 24 juil. 2024 à 16:06, Leon Woestenberg <leon@xxxxxxxxxxxxxx> a écrit : > > Hello all, > > I am seeing an rcuc "osnoise" on an isolated CPU (#4) that should have > (per-cpu) rcuc offloaded to, and polled by, other CPUs. > > Note this is with vmlinuz-6.9.10-rt5. > > I did not expect "rcuc/4" to actually run on CPU #4. > > Then I found the email thread "Wakes of the rcuc/ thread on isolated > CPUs." and also tried with rcutree.nohz_full_patience_delay=1000. Are you sure you have the proper patch applied? It is not yet upstream: https://lore.kernel.org/lkml/20240604222355.2370768-6-paulmck@xxxxxxxxxx/
