Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 10541 jiffies s: 8081 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Task dump for CPU 0: task:syz.3.2247 state:R running task stack:26128 pid:10163 ppid: 4976 flags:0x00004008 Call Trace: