On Thu, Jul 26, 2018 at 04:19:08PM +0800, Cheng Lin wrote: > - if (!cpumask_test_cpu(arg.dst_cpu, &arg.src_task->cpus_allowed)) > + if ((!cpumask_test_cpu(arg.dst_cpu, &arg.src_task->cpus_allowed)) > + || !housekeeping_test_cpu(arg.dst_cpu, HK_FLAG_DOMAIN)) > goto out;
You did not read the comment I provided last time. Using isolcpus (and thus it's renamed houskeeping thing) is the wrong thing to do. Load balancing should be limited to it's root domain.
