loop0: detected capacity change from 0 to 512
------------[ cut here ]------------
Looking for class "&ei->i_data_sem" with key init_once.__key.781, but found a different class "&ei->i_data_sem" with the same key
WARNING: CPU: 1 PID: 6302 at kernel/locking/lockdep.c:935 look_up_lock_class+0xec/0x158 kernel/locking/lockdep.c:932
Modules linked in:
CPU: 1 PID: 6302 Comm: syz-executor121 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : look_up_lock_class+0xec/0x158 kernel/locking/lockdep.c:932
lr : look_up_lock_class+0xec/0x158 kernel/locking/lockdep.c:932
sp : ffff800096f971e0
x29: ffff800096f971e0 x28: dfff800000000000 x27: ffff700012df2ec0
x26: ffff8000927fa760 x25: ffff8000927fa000 x24: 0000000000000000
x23: ffff700012df2e78 x22: 0000000000000000 x21: ffff80009292e7e1
x20: ffff0000dca3e688 x19: ffff80009142f4d0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008a71b23c x15: 0000000000000001
x14: 1fffe00036833432 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 3902af948ab95800
x8 : 3902af948ab95800 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800096f96ad8 x4 : ffff80008e4210a0 x3 : ffff8000805a359c
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 look_up_lock_class+0xec/0x158 kernel/locking/lockdep.c:932
 register_lock_class+0x8c/0x6ac kernel/locking/lockdep.c:1284
 __lock_acquire+0x184/0x75e8 kernel/locking/lockdep.c:5013
 lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5753
 down_write_nested+0x58/0xcc kernel/locking/rwsem.c:1689
 ext4_double_down_write_data_sem+0x3c/0x4c
 swap_inode_boot_loader fs/ext4/ioctl.c:423 [inline]
 __ext4_ioctl fs/ext4/ioctl.c:1428 [inline]
 ext4_ioctl+0x49b4/0x6220 fs/ext4/ioctl.c:1618
 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+0x14c/0x1c8 fs/ioctl.c:857
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
irq event stamp: 4911
hardirqs last  enabled at (4911): [<ffff800080422fa4>] seqcount_lockdep_reader_access+0x80/0x104 include/linux/seqlock.h:104
hardirqs last disabled at (4910): [<ffff800080422f60>] seqcount_lockdep_reader_access+0x3c/0x104 include/linux/seqlock.h:101
softirqs last  enabled at (3590): [<ffff800080031c3c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (3588): [<ffff800080031c08>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---