loop7: detected capacity change from 0 to 40427
F2FS-fs (loop7): invalid crc value
F2FS-fs (loop7): f2fs_recover_fsync_data: recovery fsync data, check_only: 1
F2FS-fs (loop7): Start checkpoint disabled!
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 8688 Comm: syz.7.328 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5237
 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5868
 _raw_spin_lock_nested+0x50/0x6c kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested kernel/sched/core.c:638 [inline]
 raw_spin_rq_lock kernel/sched/sched.h:1546 [inline]
 rq_lock kernel/sched/sched.h:1868 [inline]
 ttwu_queue kernel/sched/core.c:3967 [inline]
 try_to_wake_up+0x440/0xe24 kernel/sched/core.c:4293
 wake_up_process+0x18/0x24 kernel/sched/core.c:4424
 kick_pool+0x3e0/0x58c kernel/workqueue.c:1285
 __queue_work+0xdbc/0x1210 kernel/workqueue.c:2342
 queue_work_on+0xdc/0x18c kernel/workqueue.c:2392
 queue_work include/linux/workqueue.h:669 [inline]
 loop_queue_work drivers/block/loop.c:864 [inline]
 loop_queue_rq+0x944/0xaa8 drivers/block/loop.c:1891
 __blk_mq_issue_directly block/blk-mq.c:2704 [inline]
 blk_mq_request_issue_directly+0x2c0/0x560 block/blk-mq.c:2791
 blk_mq_issue_direct+0x254/0x558 block/blk-mq.c:2812
 blk_mq_dispatch_queue_requests+0x568/0x674 block/blk-mq.c:2887
 blk_mq_flush_plug_list+0x370/0x488 block/blk-mq.c:2970
 __blk_flush_plug+0x330/0x408 block/blk-core.c:1225
 blk_finish_plug+0x68/0x90 block/blk-core.c:1252
 f2fs_sync_meta_pages+0x750/0x810 fs/f2fs/checkpoint.c:474
 do_checkpoint+0x1adc/0x33c4 fs/f2fs/checkpoint.c:1587
 f2fs_write_checkpoint+0x1114/0x1c30 fs/f2fs/checkpoint.c:1728
 f2fs_disable_checkpoint+0x3b0/0x65c fs/f2fs/super.c:2618
 f2fs_fill_super+0x510c/0x5b94 fs/f2fs/super.c:5261
 get_tree_bdev_flags+0x360/0x414 fs/super.c:1691
 get_tree_bdev+0x2c/0x3c fs/super.c:1714
 f2fs_get_tree+0x28/0x38 fs/f2fs/super.c:5391
 vfs_get_tree+0x90/0x28c fs/super.c:1751
 fc_mount fs/namespace.c:1208 [inline]
 do_new_mount_fc fs/namespace.c:3651 [inline]
 do_new_mount+0x284/0x944 fs/namespace.c:3727
 path_mount+0x5b4/0xdfc fs/namespace.c:4037
 do_mount fs/namespace.c:4050 [inline]
 __do_sys_mount fs/namespace.c:4238 [inline]
 __se_sys_mount fs/namespace.c:4215 [inline]
 __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4215
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:746
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
F2FS-fs (loop7): f2fs_disable_checkpoint() finish, err:0
F2FS-fs (loop7): Mounted with checkpoint version = 48b305e6