Hello!In cpuacct_charge() function pt_regs of other thread could be used. There is a such call chain: ...-> __schedule -> pick_next_task_fair -> load_balance -> idle_balance -> load_balance -> detach_tasks -> deactivate_task -> dequeue_task_fair -> dequeue_entity -> update_curr -> cpuacct_charge.
I think that pt_regs could disappeared or be changed. How it's assumed to syncronize pt_regs usage in this place?
Kernel verion 4.9.47-rt47. Best regards, Pavel V. Panteleev
