rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P13794 (detected by 1, t=10502 jiffies, g=51277, q=1160) task:syz.2.2099 state:R running task stack:21808 pid:13794 ppid: 4189 flags:0x0000400e Call Trace: