------------[ cut here ]------------ lockdep bfs error:-1 WARNING: CPU: 0 PID: 13238 at kernel/locking/lockdep.c:2077 print_bfs_bug+0x22/0x30 kernel/locking/lockdep.c:2077 Modules linked in: CPU: 0 PID: 13238 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller-07921-g042334a8d424-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:print_bfs_bug+0x22/0x30 kernel/locking/lockdep.c:2077 Code: 84 00 00 00 00 00 66 90 55 89 fd 53 e8 b7 34 a9 02 89 c3 e8 60 fd ff ff 85 db 74 10 89 ee 48 c7 c7 20 68 4c 8a e8 0e bb e7 ff <0f> 0b 5b 5d c3 66 0f 1f 84 00 00 00 00 00 53 31 c9 31 d2 31 f6 48 RSP: 0018:ffffc9000348efd8 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888028e08000 RSI: ffffffff814bef47 RDI: 0000000000000001 RBP: 00000000ffffffff R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888028e08b40 R13: 0000000000000000 R14: ffffc9000348f100 R15: 0000000000000000 FS: 00007f198cdc8700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f198c1a8000 CR3: 000000004534e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_irq_usage+0x56c/0x1a40 kernel/locking/lockdep.c:2845 check_prev_add kernel/locking/lockdep.c:3112 [inline] check_prevs_add kernel/locking/lockdep.c:3227 [inline] validate_chain kernel/locking/lockdep.c:3842 [inline] __lock_acquire+0x2f39/0x5df0 kernel/locking/lockdep.c:5074 lock_acquire kernel/locking/lockdep.c:5691 [inline] lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5656 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 alloc_object lib/debugobjects.c:233 [inline] lookup_object_or_alloc.part.0+0x392/0xa30 lib/debugobjects.c:578 lookup_object_or_alloc lib/debugobjects.c:558 [inline] debug_object_activate+0x1ca/0x3f0 lib/debugobjects.c:692 debug_rcu_head_queue kernel/rcu/rcu.h:226 [inline] __call_rcu_common.constprop.0+0x2c/0x7e0 kernel/rcu/tree.c:2612 dentry_free+0xc3/0x160 fs/dcache.c:377 __dentry_kill+0x4cb/0x640 fs/dcache.c:621 shrink_dentry_list+0x12c/0x4f0 fs/dcache.c:1201 prune_dcache_sb+0xeb/0x150 fs/dcache.c:1282 super_cache_scan+0x33a/0x590 fs/super.c:104 do_shrink_slab+0x428/0xaa0 mm/vmscan.c:853 shrink_slab_memcg mm/vmscan.c:922 [inline] shrink_slab+0x388/0x660 mm/vmscan.c:1001 shrink_node_memcgs mm/vmscan.c:6439 [inline] shrink_node+0x7fb/0x35f0 mm/vmscan.c:6473 shrink_zones mm/vmscan.c:6711 [inline] do_try_to_free_pages+0x3b4/0x17b0 mm/vmscan.c:6773 try_to_free_mem_cgroup_pages+0x368/0x840 mm/vmscan.c:7088 reclaim_high.constprop.0+0x182/0x230 mm/memcontrol.c:2403 mem_cgroup_handle_over_high+0x190/0x520 mm/memcontrol.c:2588 resume_user_mode_work include/linux/resume_user_mode.h:58 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x14c/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f198c08c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f198cdc8168 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000005 RBX: 00007f198c1abf80 RCX: 00007f198c08c169 RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 00007f198c0e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdb5d8bedf R14: 00007f198cdc8300 R15: 0000000000022000