rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P30260 (detected by 1, t=10503 jiffies, g=181045, q=1920 ncpus=2) task:syz.2.6575 state:R running task stack:23192 pid:30260 ppid:28970 flags:0x0000400c Call Trace: