rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...0: (1 GPs behind) idle=2bd/1/0x4000000000000002 softirq=21436/21437 fqs=2100 (detected by 1, t=10506 jiffies, g=25973, q=1855) Task dump for CPU 0: task:syz-executor state:R running task stack: 0 pid: 4044 ppid: 1 flags:0x00000003 Call trace: __switch_to+0x308/0x588 arch/arm64/kernel/process.c:518 check_preemption_disabled+0x5c/0x164 lib/smp_processor_id.c:19