BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4331 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1810/0x6610 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x638 kernel/locking/lockdep.c:5662
 local_lock_acquire+0x4c/0x19c include/linux/local_lock_internal.h:29
 folio_add_lru+0x25c/0x67c mm/swap.c:524
 filemap_add_folio+0x154/0x20c mm/filemap.c:977
 __filemap_get_folio+0x6f8/0xaa8 mm/filemap.c:2004
 pagecache_get_page+0x3c/0x16c mm/folio-compat.c:110
 find_or_create_page include/linux/pagemap.h:648 [inline]
 grab_cache_page include/linux/pagemap.h:780 [inline]
 f2fs_grab_cache_page+0x198/0x3a4 fs/f2fs/f2fs.h:2741
 f2fs_grab_meta_page+0x70/0x218 fs/f2fs/checkpoint.c:49
 write_compacted_summaries fs/f2fs/segment.c:3849 [inline]
 f2fs_write_data_summaries+0xcc/0x52c fs/f2fs/segment.c:3916
 do_checkpoint+0x1aec/0x3454 fs/f2fs/checkpoint.c:1563
 f2fs_write_checkpoint+0x10c4/0x17a0 fs/f2fs/checkpoint.c:1704
 f2fs_issue_checkpoint+0x25c/0x39c fs/f2fs/checkpoint.c:1865
 f2fs_sync_fs+0x1dc/0x4d8 fs/f2fs/super.c:1712
 sync_filesystem+0x1a0/0x218 fs/sync.c:66
 generic_shutdown_super+0x74/0x32c fs/super.c:474
 kill_block_super+0x78/0xe0 fs/super.c:1470
 kill_f2fs_super+0x278/0x350 fs/f2fs/super.c:4711
 deactivate_locked_super+0xb4/0x128 fs/super.c:332
 deactivate_super+0xe4/0x104 fs/super.c:363
 cleanup_mnt+0x3a8/0x430 fs/namespace.c:1191
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198
 task_work_run+0x1f4/0x280 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x20f8/0x2c84 arch/arm64/kernel/signal.c:1151
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x128 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585