syzbot

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DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 7518 at kernel/locking/lockdep.c:237 hlock_class kernel/locking/lockdep.c:237 [inline]
WARNING: CPU: 1 PID: 7518 at kernel/locking/lockdep.c:237 check_wait_context kernel/locking/lockdep.c:4855 [inline]
WARNING: CPU: 1 PID: 7518 at kernel/locking/lockdep.c:237 __lock_acquire+0x356/0xd80 kernel/locking/lockdep.c:5185
Modules linked in:
CPU: 1 UID: 0 PID: 7518 Comm: syz.2.193 Not tainted 6.15.0-rc2-syzkaller-00048-gc62f4b82d571 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:hlock_class kernel/locking/lockdep.c:237 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4855 [inline]
RIP: 0010:__lock_acquire+0x356/0xd80 kernel/locking/lockdep.c:5185
Code: 89 c3 90 e8 4c 8f 5a 03 85 c0 74 22 83 3d d5 03 c0 0e 00 75 19 90 48 c7 c7 0d a3 4e 8e 48 c7 c6 9e b7 4e 8e e8 db 81 e3 ff 90 <0f> 0b 90 90 90 31 c0 48 8b 74 24 08 41 89 d8 0f b6 98 c4 00 00 00
RSP: 0018:ffffc9000339f5a0 EFLAGS: 00010046
RAX: ba2383a5469ef500 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000c652000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffff8880251fbc00 R08: ffffffff81826812 R09: fffffbfff1d7a970
R10: dffffc0000000000 R11: fffffbfff1d7a970 R12: ffff8880251fc710
R13: ffff8880251fbc00 R14: 0000000000000000 R15: ffffe8ffffd6a4e0
FS:  00007ff9698da6c0(0000) GS:ffff8881250c9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f05ae277000 CR3: 000000006cf60000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
 spin_lock_irq include/linux/spinlock.h:376 [inline]
 rcu_pending_has_pending_or_armed fs/bcachefs/rcu_pending.c:592 [inline]
 rcu_pending_exit+0x142/0x7b0 fs/bcachefs/rcu_pending.c:610
 bch2_fs_btree_key_cache_exit+0x8d8/0xa00 fs/bcachefs/btree_key_cache.c:783
 __bch2_fs_free fs/bcachefs/super.c:572 [inline]
 bch2_fs_release+0x220/0x7d0 fs/bcachefs/super.c:627
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22f/0x480 lib/kobject.c:737
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 bch2_fs_get_tree+0x11b4/0x18f0 fs/bcachefs/fs.c:2295
 vfs_get_tree+0x90/0x2b0 fs/super.c:1759
 do_new_mount+0x2cf/0xb70 fs/namespace.c:3881
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount+0x38c/0x400 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff96898f90a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff9698d9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ff9698d9ef0 RCX: 00007ff96898f90a
RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007ff9698d9eb0
RBP: 0000200000000140 R08: 00007ff9698d9ef0 R09: 0000000000200810
R10: 0000000000200810 R11: 0000000000000246 R12: 0000200000000040
R13: 00007ff9698d9eb0 R14: 0000000000005a7d R15: 0000200000000000
 </TASK>