------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(!test_bit(class_idx, lock_classes_in_use)) WARNING: CPU: 1 PID: 0 at kernel/locking/lockdep.c:5198 __lock_acquire+0x165b/0x2100 kernel/locking/lockdep.c:5198 Modules linked in: CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:__lock_acquire+0x165b/0x2100 kernel/locking/lockdep.c:5198 Code: 0f b6 04 08 84 c0 0f 85 31 0a 00 00 83 3d 00 cd 80 0e 00 75 19 90 48 c7 c7 20 a5 0a 8c 48 c7 c6 60 ce 0a 8c e8 66 33 e5 ff 90 <0f> 0b 90 90 90 e9 be fd ff ff 90 0f 0b 90 e9 16 fd ff ff 90 e8 fc RSP: 0018:ffffc900001a76f0 EFLAGS: 00010046 RAX: 3bd316e6ada07a00 RBX: 00000000008a8620 RCX: ffff88801d2e8000 RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88801d2e8b18 R08: ffffffff817ffc22 R09: 1ffff110170e519a R10: dffffc0000000000 R11: ffffed10170e519b R12: ffff88801d2e8ad4 R13: ffff88801d2e8000 R14: 0000000000000000 R15: ffff88801d2e8b38 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000058b6a000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:606 raw_spin_rq_lock kernel/sched/sched.h:1521 [inline] raw_spin_rq_lock_irq kernel/sched/sched.h:1527 [inline] sched_core_balance+0xd87/0xf50 kernel/sched/core.c:6419 do_balance_callbacks kernel/sched/core.c:5029 [inline] __balance_callbacks+0x18a/0x280 kernel/sched/core.c:5083 finish_lock_switch kernel/sched/core.c:5130 [inline] finish_task_switch+0x1d3/0x870 kernel/sched/core.c:5249 context_switch kernel/sched/core.c:5380 [inline] __schedule+0x1916/0x4c90 kernel/sched/core.c:6764 schedule_idle+0x56/0x90 kernel/sched/core.c:6882 do_idle+0x567/0x5c0 kernel/sched/idle.c:353 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:423 start_secondary+0x102/0x110 arch/x86/kernel/smpboot.c:315 common_startup_64+0x13e/0x147