------------[ cut here ]------------
Looking for class "&ei->i_data_sem" with key __key.0, but found a different class "&ei->i_data_sem" with the same key
WARNING: CPU: 0 PID: 8786 at kernel/locking/lockdep.c:932 look_up_lock_class+0x16c/0x178 kernel/locking/lockdep.c:932
Modules linked in:
CPU: 0 PID: 8786 Comm: syz-executor.0 Not tainted 6.8.0-rc5-syzkaller-00381-g70ff1fe626a1 #0
Hardware name: linux,dummy-virt (DT)
pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : look_up_lock_class+0x16c/0x178 kernel/locking/lockdep.c:932
lr : look_up_lock_class+0x16c/0x178 kernel/locking/lockdep.c:932
sp : ffff80008b347590
x29: ffff80008b347590 x28: ffff00000b231dc0 x27: 0000000000000001
x26: ffff8000891a0000 x25: 1ffff00011668ed2 x24: ffff8000891a0140
x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000195a0c88
x20: ffff80008926c161 x19: ffff80008895daa8 x18: ffff00000b232818
x17: 20646e756f662074 x16: 7562202c302e7965 x15: 6b5f5f2079656b20
x14: 6874697720226d65 x13: 205d363837385420 x12: ffff60000d5117bb
x11: 1fffe0000d5117ba x10: ffff60000d5117ba x9 : dfff800000000000
x8 : 00009ffff2aee846 x7 : ffff00006a88bdd3 x6 : 0000000000000001
x5 : ffff00006a88bdd0 x4 : 1fffe000016463b9 x3 : dfff800000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00000b231dc0
Call trace:
 look_up_lock_class+0x16c/0x178 kernel/locking/lockdep.c:932
 register_lock_class+0xc4/0xe24 kernel/locking/lockdep.c:1284
 __lock_acquire+0x104/0x6b74 kernel/locking/lockdep.c:5014
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x480/0x7c8 kernel/locking/lockdep.c:5719
 down_write_nested+0xb4/0x1a8 kernel/locking/rwsem.c:1695
 ext4_double_down_write_data_sem fs/ext4/move_extent.c:55 [inline]
 ext4_double_down_write_data_sem+0x34/0x68 fs/ext4/move_extent.c:51
 swap_inode_boot_loader fs/ext4/ioctl.c:432 [inline]
 __ext4_ioctl+0x16a0/0x3ecc fs/ext4/ioctl.c:1437
 ext4_ioctl+0x10/0x1c fs/ext4/ioctl.c:1627
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl fs/ioctl.c:857 [inline]
 __arm64_sys_ioctl+0x124/0x190 fs/ioctl.c:857
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:51
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x140 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
irq event stamp: 1473
hardirqs last  enabled at (1473): [<ffff800084db35a8>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (1473): [<ffff800084db35a8>] exit_to_kernel_mode+0x38/0x118 arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (1472): [<ffff800084dcb400>] preempt_schedule_irq+0x14c/0x1a4 kernel/sched/core.c:7048
softirqs last  enabled at (1468): [<ffff800080010fe8>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last  enabled at (1468): [<ffff800080010fe8>] __do_softirq+0x888/0xd9c kernel/softirq.c:582
softirqs last disabled at (1431): [<ffff80008001963c>] ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:81
---[ end trace 0000000000000000 ]---