loop0: detected capacity change from 0 to 512 ------------[ cut here ]------------ Looking for class "&ei->i_data_sem" with key init_once.__key.797, but found a different class "&ei->i_data_sem" with the same key WARNING: CPU: 0 PID: 6646 at kernel/locking/lockdep.c:935 look_up_lock_class+0xec/0x158 kernel/locking/lockdep.c:932 Modules linked in: CPU: 0 PID: 6646 Comm: syz-executor488 Tainted: G W 6.10.0-rc3-syzkaller-gac2193b4b460 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 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 : ffff8000982b7040 x29: ffff8000982b7040 x28: dfff800000000000 x27: ffff700013056e8c x26: ffff80009383d580 x25: ffff80009383d000 x24: 0000000000000000 x23: ffff700013056e44 x22: 0000000000000000 x21: ffff8000939766e1 x20: ffff0000df925288 x19: ffff800092480340 x18: 0000000000000008 x17: 0000000000000000 x16: ffff80008aefc018 x15: 0000000000000001 x14: 1fffe000367b344a x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000002 x10: 0000000000ff0100 x9 : 89d870f2491b7400 x8 : 89d870f2491b7400 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000982b6798 x4 : ffff80008f094de0 x3 : ffff8000805f0b4c 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+0x184/0x763c kernel/locking/lockdep.c:5014 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5754 down_write_nested+0x58/0xcc kernel/locking/rwsem.c:1695 ext4_double_down_write_data_sem+0x3c/0x4c ext4_move_extents+0x2ac/0xb44 fs/ext4/move_extent.c:611 __ext4_ioctl fs/ext4/ioctl.c:1370 [inline] ext4_ioctl+0x3c88/0x6260 fs/ext4/ioctl.c:1626 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 4009 hardirqs last enabled at (4009): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (4008): [] kasan_quarantine_put+0x38/0x1c8 mm/kasan/quarantine.c:207 softirqs last enabled at (2876): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (2874): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---