------------[ 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: 6151 at kernel/locking/lockdep.c:932 look_up_lock_class+0x16c/0x178 kernel/locking/lockdep.c:932
Modules linked in:
CPU: 0 PID: 6151 Comm: syz-executor.1 Not tainted 6.8.0-syzkaller-09791-ge5eb28f6d1af #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 : ffff80008cbd7590
x29: ffff80008cbd7590 x28: ffff00000b838000 x27: 0000000000000001
x26: ffff80008929e000 x25: 1ffff0001197aed2 x24: ffff80008929e680
x23: 0000000000000000 x22: 0000000000000000 x21: ffff00001a2c5c88
x20: ffff80008936c3c1 x19: ffff800088a5bbd0 x18: ffff00000b838a70
x17: 20646e756f662074 x16: 7562202c302e7965 x15: 6b5f5f2079656b20
x14: 6874697720226d65 x13: 205d313531365420 x12: ffff60000d50e7c3
x11: 1fffe0000d50e7c2 x10: ffff60000d50e7c2 x9 : dfff800000000000
x8 : 00009ffff2af183e x7 : ffff00006a873e13 x6 : 0000000000000001
x5 : ffff00006a873e10 x4 : 1fffe00001707001 x3 : dfff800000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00000b838000
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+0x104/0x6b7c 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+0x58/0x68 fs/ext4/move_extent.c:58
 swap_inode_boot_loader fs/ext4/ioctl.c:432 [inline]
 __ext4_ioctl+0x16a0/0x3ef8 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:904 [inline]
 __se_sys_ioctl fs/ioctl.c:890 [inline]
 __arm64_sys_ioctl+0x124/0x190 fs/ioctl.c:890
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:48
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x50/0x180 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
irq event stamp: 333
hardirqs last  enabled at (333): [<ffff800080a62c40>] bh_lru_install fs/buffer.c:1348 [inline]
hardirqs last  enabled at (333): [<ffff800080a62c40>] __find_get_block fs/buffer.c:1403 [inline]
hardirqs last  enabled at (333): [<ffff800080a62c40>] __find_get_block+0x890/0xb00 fs/buffer.c:1395
hardirqs last disabled at (332): [<ffff800080a62b50>] bh_lru_install fs/buffer.c:1325 [inline]
hardirqs last disabled at (332): [<ffff800080a62b50>] __find_get_block fs/buffer.c:1403 [inline]
hardirqs last disabled at (332): [<ffff800080a62b50>] __find_get_block+0x7a0/0xb00 fs/buffer.c:1395
softirqs last  enabled at (310): [<ffff800080010fe8>] softirq_handle_end kernel/softirq.c:400 [inline]
softirqs last  enabled at (310): [<ffff800080010fe8>] __do_softirq+0x888/0xd9c kernel/softirq.c:583
softirqs last disabled at (303): [<ffff80008001963c>] ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:81
---[ end trace 0000000000000000 ]---