Increase LOCKDEP_CIRCULAR_QUEUE_BITS to avoid this warning: ------------[ cut here ]------------ lockdep bfs error:-1 WARNING: CPU: 0 PID: 67 at kernel/locking/lockdep.c:2059 print_bfs_bug+0x29/0x50 kernel/locking/lockdep.c:2059 Modules linked in: CPU: 0 UID: 0 PID: 67 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: bond180 bond_3ad_state_machine_handler RIP: 0010:print_bfs_bug+0x29/0x50 kernel/locking/lockdep.c:2059 Code: 90 55 53 89 fb e8 17 1f 18 03 89 c5 e8 00 a6 ff ff 85 ed 74 19 83 fb ff 74 1c 90 48 c7 c7 6d d3 04 8d 89 de e8 18 fe e6 ff 90 <0f> 0b 90 90 5b 5d c3 cc cc cc cc cc 48 c7 c7 66 7d 16 8d e8 8f 1f RSP: 0018:ffffc9000152f0e8 EFLAGS: 00010046 RAX: f3149613a95e2800 RBX: 00000000ffffffff RCX: ffff88801c7f9dc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017104863 R12: ffffffff95a60d88 R13: ffffffff95a60df8 R14: ffff88801c7fa9d0 R15: 0000000000000027 FS: 0000000000000000(0000) GS:ffff8881268bf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000006c0 CR3: 0000000027974000 CR4: 00000000003526f0 Call Trace: check_irq_usage kernel/locking/lockdep.c:-1 [inline] check_prev_add kernel/locking/lockdep.c:3169 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain+0x1a4b/0x2140 kernel/locking/lockdep.c:3908 __lock_acquire+0xab9/0xd20 kernel/locking/lockdep.c:5237 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 _raw_spin_lock_nested+0x32/0x50 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:636 raw_spin_rq_lock kernel/sched/sched.h:1519 [inline] __task_rq_lock+0xc1/0x470 kernel/sched/core.c:712 rt_mutex_setprio+0xc8/0xc70 kernel/sched/core.c:7376 rt_mutex_adjust_prio kernel/locking/rtmutex.c:539 [inline] task_blocks_on_rt_mutex kernel/locking/rtmutex.c:1270 [inline] rtlock_slowlock_locked+0xe19/0x4010 kernel/locking/rtmutex.c:1851 rtlock_slowlock kernel/locking/rtmutex.c:1895 [inline] rtlock_lock kernel/locking/spinlock_rt.c:43 [inline] __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline] rt_spin_lock+0x152/0x2c0 kernel/locking/spinlock_rt.c:57 spin_lock include/linux/spinlock_rt.h:44 [inline] __local_bh_disable_ip+0x264/0x400 kernel/softirq.c:168 local_bh_disable include/linux/bottom_half.h:20 [inline] spin_lock_bh include/linux/spinlock_rt.h:87 [inline] bond_3ad_state_machine_handler+0xcd/0x58b0 drivers/net/bonding/bond_3ad.c:2487 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245