F2FS-fs (loop2): f2fs_disable_checkpoint() finish, err:0
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e6
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 9855 Comm: syz.2.687 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]
 __schedule+0x338/0x2864 kernel/sched/core.c:6833
 preempt_schedule_common+0xe0/0x194 kernel/sched/core.c:7113
 preempt_schedule+0x60/0x80 kernel/sched/core.c:7137
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x74/0x78 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 delete_from_page_cache_batch+0x668/0x82c mm/filemap.c:339
 truncate_inode_pages_range+0x244/0xe18 mm/truncate.c:380
 f2fs_zero_post_eof_page fs/f2fs/file.c:52 [inline]
 f2fs_expand_inode_data+0x258/0x86c fs/f2fs/file.c:1877
 f2fs_fallocate+0x378/0x8ec fs/f2fs/file.c:2034
 vfs_fallocate+0x52c/0x668 fs/open.c:342
 ksys_fallocate fs/open.c:366 [inline]
 __do_sys_fallocate fs/open.c:371 [inline]
 __se_sys_fallocate fs/open.c:369 [inline]
 __arm64_sys_fallocate+0xbc/0x10c fs/open.c:369
 __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