------------[ cut here ]------------
Looking for class "&ei->i_data_sem" with key init_once.__key.800, but found a different class "&ei->i_data_sem" with the same key
WARNING: CPU: 0 PID: 1460 at kernel/locking/lockdep.c:939 look_up_lock_class+0xdc/0x170 kernel/locking/lockdep.c:936
Modules linked in:
CPU: 0 UID: 0 PID: 1460 Comm: syz.1.6739 Not tainted 6.12.0-syzkaller-00239-gc6d64479d609 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:look_up_lock_class+0xdc/0x170 kernel/locking/lockdep.c:936
Code: 01 0f 85 8a 00 00 00 c6 05 df c8 3e 04 01 90 49 8b 16 49 8b 76 18 48 8b 8b b8 00 00 00 48 c7 c7 00 ed 0a 8c e8 a5 93 8d f5 90 <0f> 0b 90 90 eb 61 90 e8 f8 41 f2 f8 e8 93 d2 ac f5 48 c7 c7 40 ec
RSP: 0018:ffffc90004a97390 EFLAGS: 00010046
RAX: 44f6fcb607c17a00 RBX: ffffffff93cfd0d8 RCX: 0000000000040000
RDX: ffffc90017751000 RSI: 0000000000008e40 RDI: 0000000000008e41
RBP: ffffc90004a974a0 R08: ffffffff8155e312 R09: 1ffff110170c519a
R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff888041a9b410
R13: ffff888041a9b410 R14: ffff888041a9b410 R15: ffffffff9a514401
FS:  00007f4e51d0c6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c37e8e7 CR3: 0000000032c3e000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 register_lock_class+0x102/0x980 kernel/locking/lockdep.c:1290
 __lock_acquire+0xf0/0x2050 kernel/locking/lockdep.c:5077
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
 down_write_nested+0xa2/0x220 kernel/locking/rwsem.c:1693
 ext4_move_extents+0x34a/0xcb0 fs/ext4/move_extent.c:621
 __ext4_ioctl fs/ext4/ioctl.c:1365 [inline]
 ext4_ioctl+0x3735/0x58d0 fs/ext4/ioctl.c:1619
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf7/0x170 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4e50f7e759
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4e51d0c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4e51135f80 RCX: 00007f4e50f7e759
RDX: 0000000020000080 RSI: 00000000c028660f RDI: 0000000000000006
RBP: 00007f4e50ff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4e51135f80 R15: 00007fff0dfedb28
 </TASK>