Increase LOCKDEP_CIRCULAR_QUEUE_BITS to avoid this warning:
------------[ cut here ]------------
lockdep bfs error:-1
WARNING: CPU: 0 PID: 16 at kernel/locking/lockdep.c:2059 print_bfs_bug+0x29/0x50 kernel/locking/lockdep.c:2059
Modules linked in:
CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:print_bfs_bug+0x29/0x50 kernel/locking/lockdep.c:2059
Code: 90 55 53 89 fb e8 97 37 d7 02 89 c5 e8 00 a6 ff ff 85 ed 74 19 83 fb ff 74 1c 90 48 c7 c7 a8 69 ba 8c 89 de e8 88 da e6 ff 90 <0f> 0b 90 90 5b 5d e9 8c a2 19 09 cc 48 c7 c7 87 8e cb 8c e8 bf 3b
RSP: 0018:ffffc90000156e40 EFLAGS: 00010046
RAX: c52cd6b9ecef4500 RBX: 00000000ffffffff RCX: ffff888019eada00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000100
R10: dffffc0000000000 R11: ffffed101710487b R12: ffffffff9531b2b8
R13: ffffffff9531b328 R14: ffff888019eae628 R15: 000000000000001c
FS:  0000000000000000(0000) GS:ffff88812703b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff46d15010 CR3: 00000000357d8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 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:638
 raw_spin_rq_lock kernel/sched/sched.h:1546 [inline]
 __task_rq_lock+0xc1/0x470 kernel/sched/core.c:714
 ttwu_runnable kernel/sched/core.c:3765 [inline]
 try_to_wake_up+0x102/0x12b0 kernel/sched/core.c:4211
 rt_mutex_wake_up_q kernel/locking/rtmutex.c:566 [inline]
 rt_mutex_slowunlock+0x5ae/0x8a0 kernel/locking/rtmutex.c:1469
 spin_unlock include/linux/spinlock_rt.h:105 [inline]
 tcp_v4_rcv+0x25cf/0x2dc0 net/ipv4/tcp_ipv4.c:2379
 ip_protocol_deliver_rcu+0x221/0x440 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x3bb/0x6f0 net/ipv4/ip_input.c:239
 NF_HOOK+0x30c/0x3a0 include/linux/netfilter.h:318
 NF_HOOK+0x30c/0x3a0 include/linux/netfilter.h:318
 __netif_receive_skb_one_core net/core/dev.c:6079 [inline]
 __netif_receive_skb+0x143/0x380 net/core/dev.c:6192
 process_backlog+0x31e/0x900 net/core/dev.c:6544
 __napi_poll+0xb6/0x540 net/core/dev.c:7594
 napi_poll net/core/dev.c:7657 [inline]
 net_rx_action+0x5f7/0xda0 net/core/dev.c:7784
 handle_softirqs+0x22f/0x710 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0xcf/0x190 kernel/softirq.c:1138
 smpboot_thread_fn+0x542/0xa60 kernel/smpboot.c:160
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x436/0x7d0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>