Size for elements in circular_queue struct (as Nth power of 2)
configname: CONFIG_LOCKDEP_CIRCULAR_QUEUE_BITS
Linux Kernel Configuration
└─>Kernel hacking
└─>Lock Debugging (spinlocks, mutexes, etc...)
└─>Size for elements in circular_queue struct (as Nth power of 2)
In linux kernel since version 4.14.326 (release Date: 2023-09-23)
Try increasing this value if you hit "lockdep bfs error:-1" warning due to __cq_enqueue() failure.