EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. ------------[ 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: 5990 at kernel/locking/lockdep.c:933 look_up_lock_class+0xec/0x158 kernel/locking/lockdep.c:930 Modules linked in: CPU: 1 PID: 5990 Comm: syz.3.434 Not tainted 6.1.117-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : look_up_lock_class+0xec/0x158 kernel/locking/lockdep.c:930 lr : look_up_lock_class+0xec/0x158 kernel/locking/lockdep.c:930 sp : ffff800021667200 x29: ffff800021667200 x28: dfff800000000000 x27: ffff800008eade58 x26: ffff80001cb727e0 x25: ffff80001cb72000 x24: 0000000000000000 x23: 0000000000000000 x22: 0000000000000000 x21: ffff80001cd07661 x20: ffff0000f1fec8c0 x19: ffff8000186eb540 x18: 1ffff000042ccefc x17: 0000000000000000 x16: ffff8000122959bc x15: 0000000000000002 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000040000 x11: 00000000000022c4 x10: ffff800022e19000 x9 : a6a690dd5003ff00 x8 : a6a690dd5003ff00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800021666af8 x4 : ffff800015ab30e0 x3 : ffff800008585a08 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: look_up_lock_class+0xec/0x158 kernel/locking/lockdep.c:930 register_lock_class+0x90/0x6a8 kernel/locking/lockdep.c:1282 __lock_acquire+0x184/0x7680 kernel/locking/lockdep.c:4928 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662 down_write_nested+0x64/0x94 kernel/locking/rwsem.c:1689 ext4_double_down_write_data_sem+0x3c/0x4c swap_inode_boot_loader fs/ext4/ioctl.c:426 [inline] __ext4_ioctl fs/ext4/ioctl.c:1424 [inline] ext4_ioctl+0x4e78/0x6afc fs/ext4/ioctl.c:1614 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 4085 hardirqs last enabled at (4085): [] seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline] hardirqs last enabled at (4085): [] ktime_get_coarse_real_ts64+0x114/0x244 kernel/time/timekeeping.c:2261 hardirqs last disabled at (4084): [] seqcount_lockdep_reader_access include/linux/seqlock.h:101 [inline] hardirqs last disabled at (4084): [] ktime_get_coarse_real_ts64+0x9c/0x244 kernel/time/timekeeping.c:2261 softirqs last enabled at (4052): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (4050): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---