rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5047 (detected by 1, t=10502 jiffies, g=175525, q=1219) task:syz.5.8714 state:R running task stack:27648 pid: 5047 ppid: 4611 flags:0x0000400c Call Trace: