------------[ cut here ]------------
Looking for class "&ei->i_data_sem" with key init_once.__key.799, but found a different class "&ei->i_data_sem" with the same key
WARNING: CPU: 1 PID: 14523 at kernel/locking/lockdep.c:939 look_up_lock_class+0xdc/0x170 kernel/locking/lockdep.c:936
Modules linked in:
CPU: 1 UID: 0 PID: 14523 Comm: syz.0.887 Not tainted 6.12.0-rc7-syzkaller-00212-g4a5df3796467 #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 ea 55 46 04 01 90 49 8b 16 49 8b 76 18 48 8b 8b b8 00 00 00 48 c7 c7 c0 eb 0a 8c e8 25 92 96 f5 90 <0f> 0b 90 90 eb 61 90 e8 b8 53 f2 f8 e8 33 d1 b5 f5 48 c7 c7 00 eb
RSP: 0018:ffffc90004a37390 EFLAGS: 00010046
RAX: 8695739dada84300 RBX: ffffffff93c6dae8 RCX: 0000000000040000
RDX: ffffc90004789000 RSI: 00000000000078b4 RDI: 00000000000078b5
RBP: ffffc90004a374a0 R08: ffffffff8155e222 R09: 1ffff110170e519a
R10: dffffc0000000000 R11: ffffed10170e519b R12: ffff888057483df8
R13: ffff888057483df8 R14: ffff888057483df8 R15: ffffffff9a4d53a1
FS:  00007f643ce0a6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f643ce09f98 CR3: 00000000253b8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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:1370 [inline]
 ext4_ioctl+0x34b5/0x5590 fs/ext4/ioctl.c:1626
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
 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: 0033:0x7f643bf7e719
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:00007f643ce0a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f643c136058 RCX: 00007f643bf7e719
RDX: 0000000020000080 RSI: 00000000c028660f RDI: 0000000000000005
RBP: 00007f643bff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f643c136058 R15: 00007ffd9ea10128
 </TASK>