rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P30249 (detected by 1, t=10503 jiffies, g=116281, q=1005) task:syz.3.9166 state:R running task stack:24496 pid:30249 ppid: 21920 flags:0x0000400e Call Trace: