------------[ 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: 0 PID: 10350 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: 10350 Comm: syz.8.436 Not tainted 6.12.0-rc5-syzkaller-00299-g11066801dd4b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:look_up_lock_class+0xdc/0x170 kernel/locking/lockdep.c:936 Code: 01 0f 85 8a 00 00 00 c6 05 bd 02 47 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 b5 31 97 f5 90 <0f> 0b 90 90 eb 61 90 e8 68 94 f2 f8 e8 93 71 b6 f5 48 c7 c7 00 eb RSP: 0018:ffffc9000c72f4f0 EFLAGS: 00010046 RAX: 42da8ea0c7a90800 RBX: ffffffff93c9c188 RCX: 0000000000040000 RDX: ffffc9000f675000 RSI: 0000000000005a11 RDI: 0000000000005a12 RBP: ffffc9000c72f600 R08: ffffffff8155d162 R09: 1ffff110170c519a R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff888057c93410 R13: ffff888057c93410 R14: ffff888057c93410 R15: ffffffff9a4d23a1 FS: 00007f5d91f516c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 000000005f60e000 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 swap_inode_boot_loader fs/ext4/ioctl.c:432 [inline] __ext4_ioctl fs/ext4/ioctl.c:1436 [inline] ext4_ioctl+0x4124/0x5590 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: 0033:0x7f5d9117e719 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:00007f5d91f51038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f5d91335f80 RCX: 00007f5d9117e719 RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000004 RBP: 00007f5d911f132e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5d91335f80 R15: 00007fff4afc8068 </TASK>