------------[ cut here ]------------
Looking for class "&ei->i_data_sem" with key init_once.__key.802, but found a different class "&ei->i_data_sem" with the same key
WARNING: CPU: 0 PID: 32746 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: 32746 Comm: syz.6.6578 Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #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 a6 df 3d 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 65 88 8c f5 90 <0f> 0b 90 90 eb 61 90 e8 18 c0 f1 f8 e8 13 c9 ab f5 48 c7 c7 40 ec
RSP: 0018:ffffc9000d18f390 EFLAGS: 00010046
RAX: c51d0aa1b74ba500 RBX: ffffffff93cf80b0 RCX: 0000000000040000
RDX: ffffc9000492b000 RSI: 0000000000008caa RDI: 0000000000008cab
RBP: ffffc9000d18f4a0 R08: ffffffff8155e312 R09: fffffbfff1cfa3fc
R10: dffffc0000000000 R11: fffffbfff1cfa3fc R12: ffff88805ddb1658
R13: ffff88805ddb1658 R14: ffff88805ddb1658 R15: ffffffff9a519401
FS:  00007f176f5f66c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f176f5f5f98 CR3: 000000004c478000 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: 0033:0x7f177117e759
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:00007f176f5f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1771336058 RCX: 00007f177117e759
RDX: 0000000020000080 RSI: 00000000c028660f RDI: 0000000000000005
RBP: 00007f17711f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f1771336058 R15: 00007ffe95383a48
 </TASK>