rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7858 rcu: (detected by 1, t=10502 jiffies, g=23413, q=1741 ncpus=2) task:syz.0.397 state:R running task stack:25128 pid:7858 tgid:7858 ppid:6630 task_flags:0x400040 flags:0x00004006 Call Trace: