Scenario TREE07 with CONFIG_PREEMPT_DYNAMIC=n?
From: Paul E. McKenney
Date: Thu Mar 10 2022 - 16:56:36 EST
Hello, Frederic,
I recently added CONFIG_PREEMPT_DYNAMIC=n to the TREE07 file, and since
then am getting roughly one RCU CPU stall warning (or silent hang)
per few tens of hours of rcutorture testing on dual-socket systems.
The stall warnings feature starvation of RCU grace-period kthread.
Any advice on debugging this?
Thanx, Paul